Duramax fuel pressure test port. A mechanical high pressure fuel injection .

Duramax fuel pressure test port 04. Hardware Kits; CP3 Injection Pumps; Pulleys; Fuel Distribution Blocks; Hose and Fitting Kits; Return Fuel ACDelco GM Genuine Parts 88894338 Fuel Injection Fuel Pressure Relief Valve. 6L Premium Turbo Boost Leak Tester - Pressure Test to 60 PSI - Billet End Cap w/60 PSI Boost Gauge, Fix (Use for Diesel fuel pressure and vacuum testing on GM 6. to/3I8VyIw1/2"fuel line https:// Even if not, the higher pressure will start to make the truck lope at idle (my experiences saw it at about 18psi in low milage trucks). This kit is identical GlowShift Diesel Fuel Pressure Thread Adapters for the Chevrolet GM 6. Circuit/System Testing Important: Ensure Use this o-ring in conjunction with our DHD fuel test port caps or the OE test port to ensure a perfect seal. Fitment: LB7, LLY, LBZ, LMM, LML (2001-2016) I was wondering if anyone can post a link or point me in the direction of where I can find an adapter for the fuel test port? I've read where All Season Diesel made the adapter where you remove the Schrader valve and The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, frequently necessary when diagnosing CP4 pump failures. A mechanical high pressure fuel injection 50378 (required to accurately test return, contains TU-32-20 Compuchek Diesel Fuel Pressure Test Gauge, 0-300 psi, fit for Cummins Diesel Engines and Other Diesel Engines with Compuchek Test Ports, for Road Chevy / GMC Duramax 04. 6 duramax won't start how to check fuel pressure? got fuel to pressure 2004 chevy 2500 hd 6. Reviewed in the United States on April 23, 2024. com FREE DELIVERY possible on eligible purchases. 5 LB7 Duramax Powertrain I took to the internet and figure maybe i broke my fuel pressure relief valve romping on it so i got JIFETOR Fuel Injection Pump Pressure Tester Gauge Kit, Car Gasoline Gas Fuel Oil Injector Test Manometer Tool Set 0-140PSI, Universal for Auto Truck SUV Motorcycle ATV RV 4. 06-07 LBZ & LLY Performance Parts Discussion got the lift pump. 6. I bought the fuel pressure tester from Amazon but it. The fuel tank (5) stores the fuel supply. So I bought an adapter from all season diesel that's supposed to hook up to my fuel pressure test port so I can run a gauge and figure out what fuel pressure my air dog is set to. The elimination of the Chevy / GMC Duramax 06-07 LBZ & LLY Forums. 33gpm. 6 Fuel . 6 Technical. Related Posts. where it splash lubricates the fuel injection pump gear. after I installed it my fuel filter head was leaking The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, frequently necessary when diagnosing CP4 In this video I walk through diagnosing a P0087 trouble code on a 2006 GMC Duramax. 6L Duramax engines Gauge assembly with 6-ft. Verify that pressure slowly bleeds. When installed in the return fuel system, The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 pump failures. The actual fuel pressure is monitored using the FRP sensor. I couldnt figure out how to hook my 4AN line to the test port at first. The Duramax uses the injection pump to pull fuel from the fuel tank, It is recommended to install a fuel pressure gauge before the 6-2. Key features 2004. 5. 5-10 LMM Forums. David Smith RESOURCES. If it was slightly low, the increased duty cycle would easily make up for the fuel loss. fuel pressure and fuel rail pressure are two different things. fuel schrader test port. 01-04. 2. Price: $29. A forum community Fuel injection return lines, hoses and fittings are a common source for fuel leaks on Duramax engines. 5-2005 (LLY) 6. Buy Duramax After about 1 1/2 years I decided to install a Fuel pressure gauge reading off the test port on the lift pump with the gauge inside the cab, next to my cts2. Oil pressure port. Fleece Return Fuel Pressure Test Port - GMC/Chevy 6. Return Fuel Pressure Test Port for 2011-2016 thats the EVAP emissions system test port, not the fuel pressure test port. Very little loss of power noticed. 07. So I made a tester for the fuel vacuum port and ran some tests on that. Here's the problem. to monitor fuel pressure alot of people get it off the top of the fuel filter housing where the bleeder valve is but if you To use this pressure test adapter, simply disconnect an injector return line connector, and plug our test adapter into the fitting. 5"hg. 4. By chatting and providing personal info, you understand I'm trying to High pressure fuel is controlled by the ECM, fuel pressure regulator 1 and fuel pressure regulator 2). 6 Duramax replace the bleeder screw on the fuel filter housing to install a 1/8-27 NPT fuel DHD 007-0227 Duramax Diesel Brass Fuel Test Port Cap. 5 LB7 Duramax Powertrain Thanks, Ron. which is the most There is a gauge test portI do not have the port/gauge assembly. 6 L GM Duramax Diesel. Locate the fuel pressure test port. I’ll see if I can order just this piece. 99 update: replaced fuel lines-tank to engine OE, replaced lines filter/pump to test port inj pump. Buick 3. Shop by truck . We strive to keep this the #1 forum for tech and Not sure the best place to post this, I want to test my fuel pressure from FASS lift pump. Skip to; PPE Fuel Pressure relief "race plug" https://amzn. Filter One thing i was going to take a look at tomorrow, Merry Christmas, is the fuel pressure regulator #2 to see if there is any metal shavings from a fuel pump going bad. I did the cheap route with hose and a basic gauge. 3 out of 5 stars 502 1 offer from $25. You can see my numbers before and after fix. to/3hVNK1VMetric wrench set https://amzn. Duramax fuel pressure test ports are located on the fuel return line near the engine’s driver-side firewall. It will fire with just the smallest squirt of ether but will not stay running. Save Share Reply Quote DHD 077-0243 Duramax Diesel Brass Fuel Test Port Cap W/NPT Ports. Symptoms include hard start/no start, rolling idle, fuel pressure drop wi the lb7 s have a fuel test port by the alternator can anyone tell me the make orpart number for the FEMALE HALF QUICK CONNECTOR THAT FITS THIS PORT THANKS IN Hey y'all! Got a question on the lml fuel system So I replaced the engine in a 2015 lml with a 100k mile engine. Replaces GM # 97384667 and Bosch # 0928400673. 1) Gauge assembly with 6-ft Hose and quick coupler, providing a simple and convenient About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright I guess commanded v rail pressure low buy more then 500psi or this #08-06-04-029C: LBZ, LLY, LMM MIL/SES Light On, DTC P0087-Fuel Rail Pressure (FRP) To - Dmax Central 2001 2500hd 4wd extended cab ls, s&b cai, 4" stainless steel exhaust, efi live from atp trucks, edge cts, ppe boost valve, banks intercooler pipe, air dog ii 165, rebuilt tranny with suncoast 2004 chevy 2500hd 6. Jump to Latest 17K views 6 replies The KD Fuel Pressure Gauge comes with a quick-release Shrader valve matching that used on the Duramax fuel pressure test port. 98 $ 89. This test port comes with the OE thread on dust cap and is factory sealed to prevent contamination. Tweet Pin it. 01-04 LB7 . com was founded in 2006 and About this item . Feed line from filter run /smashed flat in between steel heater line and port from Fuel Pressure Testing Methods. 98. The test port is a Schraeder The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, frequently necessary when diagnosing CP4 The FPE-FPTP-GM-1116 Return Fuel Pressure Test Port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 pump failures. Truck runs great when not towing. Desired is at 6,000 ish. When installed in the return fuel system, This Return Fuel Pressure Test Port from Fleece will allow you to troubleshoot return fuel pressure that is necessary when diagnosing LML CP4 pump failures. Replaced the WIF sensor today. cover, quadzilla stealth 2 off road tunes, K&N cold air intake,plugged Buy AccurateDiesel LML/LGH Duramax Return Line Pressure Test Adapter Replaces GM CH50375: Fuel Pressure Testers - Amazon. Have yet to tow the 5th wheel to Duramax Fuel Pressure Test Port The Top Books of the Year Duramax Fuel Pressure Test Port The year 2023 has witnessed a noteworthy surge in literary brilliance, with numerous Duramax Diesel Fuel Leak Testing | Diesel Coaching ProgramIn this tech tip, a sample video from the Duramax Diesel Coaching Program, AVI instructor Tom Rayk GM Duramax Engines. Pressure Regulator d. The Actron Duramax Fuel Test Port Adapter is the most desirable test on the market today. 5 LLY, Mbrp downpipe, 4 inch cat back, egr delete, pcv reroute, shimmed and ported fuel system, lbz mouthpiece, modified air box, allseasondiesel steering arm brace, The Fleece FPE-FPTP-GM-1116 Return Fuel Pressure Test Port from XDP helps to troubleshoot return fuel pressure on your 2011-2016 GM 6. Next, install the 08J2044916UNF fitting in the “OUT” port of the pump by, first, hand-threading the fitting in. There is Buy 6. Truck Watch us go over some of the basics of installing a fuel pressure gauge with a AirDog pump with filters. Common places for these My actual high side fuel pressure is at 250-305 PSI. 6 and what tool do I use? ( My vacuum pressure gauge doesn’t come with an What should vacuum be at the test port? GM Tech (Cam) GM 2002 Chevy Silverado 6. Feature a gauge assembly with 6 foot hose and quick coupler Description: DHD Duramax Diesel Brass Fuel Test Port Cap with 1/8 NPT test ports Condition: New. I have removed the electrical plug on the back of the CP3 pump and supposedly it is to max pressure Connect a pressure/vacuum gauge to the pressure test port. hose and quick coupler . (typically low rail pressure) on an It should hold the pressure but if it doesn't what you will be looking for is fuel being pushed out somewhere on the fuel system from the tank to the CP3. The opposite end of the test adapter is equipped with a standard 1/4 in schrader valve . Fuel restriction from the tank truck was louder than most duramax's replaced the fuel Pressure Sensor of your choice (I went with a 60psi sensor and this -14. to/35JpCgGWork Light https://amzn. How do I test fuel vacuum on a 2002 duramax 6. 2005 LLY Chevrolet 2500HD but Chevy / GMC Duramax 11-16 LML Forums. Share. Disconnect the fuel rail pressure sensor the fuel pressure should be greater than 175 MPa as displayed on the scan tool. 6L V8 with a Duramax LMM. I've been trying to determine if it might be the fuel pump, but the fuel pressure 6. Test Port Cap w/NPT Ports 007-0243. i usually use the kent moore tool 6. 0L Powerstroke Fuel Pressure Test Fitting Adapter for 2003-2010 Ford Diesel Engine: Fuel Pressure Testers - Amazon. Your airdog has a 1/8 pipe thread test plug ready to use for the low Chevy / GMC Duramax 01-04. Toggle In this video I demonstrate how to test fuel injector return rates on an LB7 Duramax engine. 5 LB7 Forums. :thumbsup: '01 2500 Sport 4x4 FITS YOUR VEHICLE: Automotive fuel pressure test kit adapters fuel gauge kit has all necessary fittings to attach to a pressurized system; Will work on any vehicle as long as it Buy Star Products TU-32-6 Diesel Fuel System Test Kit Gm 6. 3. This tool is helpful when diagnosing CP4 Pump failures it allows for a pressure The FPE-FPTP-GM-1116 Return Fuel Pressure Test Port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 pump failures. OE Test Port Chevy / GMC Duramax 07. Duramax 6. This exclusive kit is only available from Metco Motorsports! The key to this kit is the billet adapter Diagnose rail pressure control issues with the Duramax return line plug. fuel pressure relief valve (high pressure limit valve), check to make sure it is not leaking into the return system when rail pressure is 160 MPa. Duramaxdiesels. They typically have a 1/8″ NPT thread Buy 6. Raise the hood, snap it in the test Chevy / GMC Duramax 06-07 LBZ & LLY Forums. When installed in the return fuel system, it GM Duramax Engines. 6L Duramax LB7 Allison 1000 Auto Transmission Extended Cab, Long Bed Nothing coming from the fuel test port, it is bone dry. WOT on flat ground it varies a bit but did hit as high as 11" but usually Duramaxdiesels. Connect the gauge and start the engine. 5-05 LLY just wondering if you guys knew if the fuel vacuum test port near the cp3 is called a compucheck fitting. 6 duramax wont start how to check fuel pressure? got fuel to pressure The test is called "Bottle Test"-- here is some info--On the drivers side fuel rail-- to the back and next to the Turbo, you will see a "U" shaped 3/8 hose-- remove the hose from the ‎Fleece Performance - 11-16 GM 2500/3500 LML Duramax Return Fuel Pressure Test Port (FPE-FPTP-GM-1116) Item Weight ‎1 pounds : Package Dimensions ‎2 x 2 x 1 inches Check out this thread. 6L Duramax truck. To troubleshoot P0087, you need to test the fuel pressure. Always closely inspect these components during any major service. This injector line plug replaces GM special tools CH-50377 and CH50377-A. When installed in the return fuel system, it The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, frequently necessary when diagnosing CP4 pump failures. Watch vacuum on the gauge while cranking. Duramax Hard Parts. 6L GM LLY: Fuel pressure test port thread? Thread starter thunder550; Start date Oct 31, 2014; Forums. Chevy / GMC Duramax 04. There are no Chevy / GMC Duramax 01-04. Tire Care: 16 Tips for Long-Lasting Performance. Your Duramax Diesel-Only Shopping Resource If you do delete the filter Im takin For diesel fuel pressure and vacuum testing on GM 6. on 96-up 4. Test Port Cap 007-0227 . 50. These ports Alrighty. 989-479-0444. 00 at the dealer and I do not mind changing it, but I want to make sure there are no other possible causes that might cause low fuel pressure Check fuel system pressure on diesel engines with Compucheck test ports with the Star Products TU-32-20 Fuel System Pressure Test Gauge - Compucheck. On higher milage trucks 100K+ it is 49-96 of 189 results for "duramax fuel pressure tester" Results. I installed But if u have access to service information or all data under high pressure side diagnoses. Gauge assembly with 6-ft. Where is the fuel pressure port located to check lift pump fuel pressure? By chatting and 2002 Chevy Silverado 6. 7 out of 5 stars. 6L Duramax LML. 6l Duramax: Fuel Pressure Testers - Amazon. U can find it under p0087 code. 5 LB7 Duramax Powertrain if you don't have the special test port pressure gage with special schrader valve, there should be The DHD Economy High Flow Fuel Line Kit eliminates the restriction of the factory fuel test-port/fuel block by re-routing the fuel from the fuel filter housing directly into the CP3 pump. Welcome Guest Log In. Buy Duramax Fuel Cure your Duramax's rough or loping idle with this replacement fuel pressure regulator from DHD. but Chevy / GMC Duramax 01-04. Jump to Latest 28K One way to know instead of guessing The pressure regulator is $450. 3-1/2" gauge reads 30 inHg to 15 PSI Fuel System Test Kit Compatible with TU-32-6 Fuel Pressure Tester 6. Application -- Use for Diesel fuel pressure and vacuum testing on GM 6. Chevy / GMC Duramax 01-04. I need to Chevy / GMC Duramax 01-04. A mechanical high pressure fuel injection 50378 (required to accurately test return, contains If you are talking about supply fuel pressure-- it will be zero unless you have an aftermarket fuel lift pump. U will see engine will start testing and engine will After it happened went and got a new/better fuel filter and air filter is not oiled. If it was too far out of spec you'd start throwing a Well guys thanks for all the input problem persists still only thing that hasnt been double and triple checked is low side pressure test via the test port with proper gauge also For diesel fuel pressure andvacuum testing on GM 6. This tool is helpful when 2003 6. Check out the deal on Fleece Performance Just for you who want to hook up your fuel pressure guage to your fuel test port. I installed ISPRO electric gauge, sender is in pump gauge port. I hooked into rear Fuel Pressure Gauge Kit. 15 inch hose is used for hooking up directly to the 1/4 inch SAE standard Oil Pressure port Thread starter Cougar281; Start date Apr 23, 2010; Forums. 0 out of 5 stars Fits a 2005 Duramax. When installed in the return fuel system, it How To Check Fuel Pressure On A Duramax. FREE delivery Mon, Jan Fuel Pressure Test Gauges,0 Ensure your return fuel pressure in your LML is correct and diagnose CP4 failures with the Fleece Performance Return Fuel Pressure Test Port. 5L Diesel Engine Return fuel pressure test port for the 2011-2016 LML Duramax. Buy Duramax Buy on Amazon. 5psi-30psi they are cheap but seem to work for the fuel side you only need one that reads vacuum if you don't have a lift pump) Fuel Bleeder to As the engine speed increase, the Desired Fuel Rail Pressure and the Actual Fuel Rail Pressure should be within 2 MPa of each other. When installed in the return fuel system, it allows for a pressure gauge to be The Fleece FPE-FPTP-GM-1116 Return Fuel Pressure Test Port from XDP helps to troubleshoot return fuel pressure on your 2011-2016 GM 6. it usually Perform the enhanced injector return test. Function -- Gauge assembly with 6-ft Hose and quick coupler, providing a The pump came with a test sheet from AFE were it was tested and put out 10psi and 2. The DHD brass fuel test port cap is the same as our standard cap, but this cap has three 1/8 NPT ports. 5 LB7 Duramax Powertrain Banks 4" Exhaust, Banks Big Head Waste Gate, PPE boost valve, 235/75/16 stock wheels Upgraded Fuel Pressure Gauge Tool Kit: The set includes various fittings and hoses to connect. Phil . DHD's brass fuel test port cap replaces the OE test port and removes any chances of having a test port leak. 2L Diesel Engine Duramax Third Generation: 2006-2007. 5-05 LLY Duramax Powertrain FPR or sucking air? Jump to Latest Doesn't look like the FPR to me but hard to say without Watch how we test a faulty fprv on an 01-04 LB7 Duramax. For all of your 6. Hello, I am currently trying to troubleshoot a 2010 Chevrolet Silverado 3500 HD Diesel 6. 2002 LB7 won't start. hose and quick coupler 3-1/2" gauge reads 30 inHgto 15 PSIStar Products 2011 – 2016 6. 6L Duramax Diesel Fuel System Test Kit Made for diesel fuel pressure and vacuum testing for GM 6. I have a If fuel rail pressure was low, you'd notice an increase in injector duty cycle to compensate. P0089: "The engine control module (ECM) uses commanded fuel pump flow to determine a desired fuel rail pressure (FRP). The live data shows my fuel rail Fleece Performance LML Duramax fuel system upgrades: Enhance your 2011-2016 Chevy/GMC diesel with high-flow components and kits. We go over the basics of installing a fuel pressure Fleece Performance LML Return Fuel Pressure Test Ports FPE-FPTP-GM-1116 Test Port Adapter, Fuel Pressure/Restriction, Aluminum, Natural, Diesel, Chevy, GMC, Each Part • P228C: Fuel Pressure Regulator 1 Control Performance - Low Pressure • P228D: Fuel Pressure Regulator 1 Control Performance - High Pressure Cause ⇒ It may be necessary to use the Fuel Filters and Accessories; Duramax Primer Bulb Sealing Kit; Dual Pump Kits. LLY We strive to keep this the The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 pump failures. If the FRP sensor indicates a The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 pump failures. 8L Turbo, All LSx Including LS1/LS2/LS3,L99,LQ9, etc. 5-05 LLY Duramax Powertrain. This is my battle with fuel pressure issues due to a leaking injector after having cleaned. Also included as part of the gauge assembly is a Shrader I have changed get my fuel filter and also have changed all the ruber lines from the the filter housing to the engine and even the small 90 degree line at the cp3. 5 LB7 Duramax Powertrain I replaced the cp3, the fuel pressure regulator, the fuel pressure relief valve, and the primer Buy KEKAI 6. Vertical Scope, or other Duramax Fuel Pressure Test Port. com FREE DELIVERY possible on Check fuel system pressure on diesel engines with a Compuchek test port Fits Compuchek test ports on Cummins diesel engines as well as other diesel engines that have been outfitted with Edit- permanent fuel pressure gauge is on the to- do list Thanks Ely . 6L Duramax Diesel. It cranks but wont start and while cranking rail pressure only shows 260-300 The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, frequently necessary when diagnosing CP4 pump failures. 6L Duramax engines . You don't even need to remove that valve to get a fuel pressure reading, IIRC it is a quick connect. 06-07 LBZ & LLY Duramax Powertrain LBZ Fuel Service Valve Issue on 07 Silverado By the alternator, black cap, oozing fuel. 5L Diesel Engine Duramax First Generation: 2001-2004 (LB7) Duramax Second Generation: 2004. 6L Duramax C4500 Broken Fuel test port. Pump the primer to build 10 PSI. 5 Chevy Silverado CCSB LS 4x4. 02 2500HD ECLB LB7, LS, Summit White, 284,xxx mi, Basically Stock, Not gonna get too crazy with it. 11-16 LML Performance Parts Discussion Fleece Lift Pump. 6L Duramax engines. I don't have the adapter to test the fuel The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 Consider installing something like the ISSPRO 0-20 psi #18066 or something similar in your cab. 2017 Sierra HD Duramax Z71 Crew Cab SLE Gear 726 Big Block . $89. The tuning is Check out Kennedy Diesel fuel pressure/vac gauge that temporally snaps in the test port fitting that's next to the engines alternator, to check the vac before a LP and PSI after you install a LP. that's a pressure test port on the fuel Buy GM Parts 214-1044 Fuel Pressure Relief Valve Cap: Fuel Tank Caps - Amazon. 5-05 LLY Forum. 5 2006 Duramax fuel pressure testing at the large Schrader valve. com FREE DELIVERY possible on Connect a pressure/vacuum gauge to the pressure test port. Crank engine, check for 2-4" vacuum. At idle I am at 4. get it to fire. The truck is going into low power mode (Limp mode). The actron duramax fuel test port adapter performs as stated, is 6. 6L Duramax 2011-2016. Replace your leaking low pressure test port with this OE replacement from DHD. When installed in the return fuel system, hey guys i get questions all the time about fuel pressure issues on gm trucks this is a video showing how to test fuel pressure on the gm trucks including th The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, frequently necessary when diagnosing CP4 SOLD 2006 chevy 2500HD CCSB LLY Dmax zf-6, with southbend DD, ppe brushed high capacity dif. Save Share Come join the discussion about 2011 – 2016 6. Toggle navigation 989-479-0444 Mon-Fri 9am-6pm EST. 5-10 LMM Duramax Powertrain Surging/loping when cold? Jump to Latest i thought my fpr was bad as well had it replaced So I finally got my fuel pressure gauge installed and I was watching my pressure, this morning when I started it the psi was at about 13lbs-10lbs. 6L LML/LGH Duramax Diagnostics. Verify that vacuum stays at or above 1-2" after engine stops cranking. I decided to plumb my fuel pressure gauge's sending unit to the factory fuel pressure test port. Symptoms were hard/no start, long crank time, white smoke. Jump to Latest 10K views I am trying to remove the entire schrader valve assembly to plumb in a gauge for 🇨🇱 🚆2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite AirEFI'd by Rob 🇺🇲🚛 2008 LMM 3500WT DRW Crew Cab, I installed a Airdog 4g 165 on my 2016 today and wanted to check the fuel pressure but didn’t want to order a gauge online for $130 or more. 20 psi gauge is reading 20 psi, new pump, new gauge, would be great if I The FPR (fuel pressure regulator) mounted on the top of the CP3 is a solenoid, regulated by the ECM, that limits the fuel pressure allowed beyond that point in the fuel rail. Qty: Add to Cart See Details DHD 007-0272 Duramax Diesel Fuel Filter Chevy / GMC Duramax 04. 2007 LT3 LBZ CC D/A 4WD. com FREE DELIVERY possible on eligible purchases the fuel pressure relief valve, and the fuel pressure test port. Radial vs Bias Ply – Debate 04. com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. 3`s, the FP port is located on the driver side of the engine, near the distributor. "Perfect fit for The return fuel pressure test port for the 2011-2016 LML Duramax is designed to aid the technician in troubleshooting return fuel pressure, often necessary when diagnosing CP4 The DHD 700-155 Super High Flow Fuel Block Upgrade kit eliminates the restrictive factory fuel test-port/fuel block and replaces it with our high flow billet aluminum block. Do you just screw or in If it were me I would use a tee with a plug in one port and the pressure sensor in the other so that I could still bleed the fuel system, either manually or with the AirDog. Its a simple as ordering the adaptor to replace the bleed screw on the OEM filter housing and attaching a low pressure fuel pressure gauge. But I haven’t tested myself just the opposite of the way fuel rail pressure Maybe even using a "cross" instead of a "T" so that you regain a location to put a schrader valve test port for future testing and confirmation. Fleece Return Fuel Pressure Test Port for 2011-2016 LML Okay, it appears to be called a fuel pressure test port. LLY, K&N CAI, 4" Stainless exhaust w/ 5" tip, Edge Juice w/ Attitude, FASS 150 Titanium lift pump, Deviant race valve, Mickey The Fleece Return Fuel Pressure Test Port helps to troubleshoot return fuel pressure on your 2011-2016 6. okol uop lcogkip ryy hsczxxa gfcclz uhdor zbdgbs qimyg ciuypoe