Golf IV R32 :: Won't Start - Fuel Pressure?
Jul 18, 2011
so my car doesnt want to start so i am going to check a few things.
first how do i check my fuel pressure or the location?
Jul 18, 2011
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Golf IV / Jetta IV :: 2005 GL Trim 2L SOVC Won't Start On First Try - Fuel Pressure?
I have a 2005 Golf GL trim 2L SOVC. For months now the car won't start on the first try. One must let off the key and disengage the starter then reengage. It always starts the second try and never starts the first. Once the engine runs for a few seconds, if you turn it off, then start it again, it immediately starts. It's never a problem en route. Only if you let the car sit for a while, say 8hrs or more, (when the fuel pressure dies) do I observe this "no start on first try" behavior.
I recently replaced the plugs and fuel filter and cleaned the throttle body. It's a little better now. It stumbles like it is going to start on the first try after sitting but doesn't.
I exposed the fuel pump and measured the voltage going to it. When you turn the key to "on" position, the engine computer put's voltage to the pump for about 1.5 seconds and that's it. So while you are cranking I guess it expects that 1.5 seconds of pump operation is enough. I put my fuel pressure guage on the port near the injectors, and, as I suspected, the pressure only builds to about 28lbs. On the second try it gets up to 40. Once running it's about at 45lbs.
Sounds like a firmware bug to me.I'm considering wiring in a switch that I can toggle to deliver more on time to the pump inititally - maybe 3 seconds? Is this normal?
I noticed that when I put the fuel pressure gauge on initially there was zero pressure. Is this normal?
Shouldn't a check valve keep it at pressure? Where is the check valve located? I'm also getting a P0171 code "engine too lean". I repaired a hole in the air hose going from the air pump to the throttle body - still get the code. All hoses look good.
Lexus SC430 :: Check Fuel Pressure To Verify If Fuel Pump Is Functioning With Pressure Test Kit?
I need to check the fuel pressure to verify if my fuel pump is functioning. What is the procedure and PSI?
Assume that I open the valve on fuel rail with engine off, then connect pressure tester kit, put key in ignition to "on" position, then pump up to specified PSI???
C/K :: 98 C1500 5.7L Fuel Pressure - Spark But No Start
After replacing the intake manifold gasket for the second time, the truck would not start. Thought for sure it was my putting the distributor in wrong. After reviewing the forums, I am sure it is installed correctly. I have spark but no start. Engine cranks over nicely, but acts like it needs fuel. I hooked up a fuel gauge, turned on the key and get 56PSI. Lower than the 60 required. The pressure then slowly goes to 50 PSI. I pinched off the return hose and had the same readings. Pretty sure I need to replace the fuel pump. Is there anything else I need to check. I replaced the fuel pump a couple years ago with a Delphi unit. Maybe this is just a weak link for these trucks. My truck has a little over 100,000 miles on it.
View 14 RepliesBmw - 328 :: 1996 - Won't Start Up - No Fuel Pressure And Firing
this car is a daily driver and ran very well it has 104,000 miles and well maintained. on a Friday night, it started to rain and my windows were down. my friend volunteered to roll them up and mistakenly left the key in the run position. I was unaware of this until Monday morning so the battery was completely drained. I removed the battery and charged it for about 12 hours until fully charged on a 3 amp charger.
The head lights were bright when I reinstalled the battery but I did not take a voltage reading although i believe it was charged up good.when I went to start the car it did nothing and the fuel pump is not running either. I removed the starter wire from the starter and with a remote starter jumped the starter.. it swirled over fine but no start with the key in run position . it has no fuel pressure and is not getting fire. this car is equipped with an immobilization unit for security.
Is it possible that this caused it to activate? my key also is equipped with a chip I was told by the (stealership) and I only have the one key with no fob to deactivate the security system. my owners manual say I can turn the key to the left in the driver's door to turn off the security also but it has no effect. it is the original key and is very old looking. I have exhausted every hunch I had to get this machine back on the road and I just know one of you tappet brothers is holding the solution to my problem.
Sierra :: 2003 - No Fuel Pressure At Cold Start
I have an 03 Sierra Half Ton when the engine is warm it runs fine but at cold start, half the time it doesn't have the fuel pressure to start, i have to turn the key a couple times to build it up. Idk if the fuel pump is weak for if it would be more the regulator. I started having this problem after i replaced the fuel pump. The fuel pressure gauge shows 50-55 lbs, but every now and then when its cold it will only jump to around 5 lbs (but this is only when the engine is cold... why?) What should i go after first? Regulator, new pump, Replace the fuel filter again?
View 2 RepliesVolvo - 940 :: Stalls Out While Driving And Would Not Start Up Again / Low Fuel Pressure
I've had this car for a little over a month, when I first bought the car it ran fine, until I drove it home. It stalled out and would not start up again, turned out I had low fuel pressure so I replaced the fuel pump. After this the car had been running fine up until a few days ago. It was stalling out and starting right up, now I am lucky if it will start up. I am still getting fuel pressure to the fuel rail. Would it be my injectors?
View 1 RepliesLincoln - Towncar :: Start After Releasing Fuel Pressure?
95 lincoln towncar was running fine all day. made a pit stop later on and the car wouldn't start. previous owner said it would do that occasionally and to let it sit for 20 min. or so. still wouldn't start! released fuel pressure at fuel rail and then the car started just fine and was running like nothing happened! could I be getting too much pressure? also never did get the smell of raw gas!
View 4 RepliesFord - Explorer :: 2000 XLT - No Start / Low Fuel Pressure
2000 explorer XLT, 4.0L, OHV (VIN "X")---sitting for 15 months, engine turns over but no start unless 10 cc's of gasoline into intake manifold, then runs for 4-5 seconds. Fuel pressure of 5-6 PSI at fuel rail AFTER replaced fuel pump assembly and fuel filter. I can hear fuel pump come on for about a second with key on. Doubel checked fuses and relays for fuel pump and PCM, then again checked that engine would run briefly with gas squirted into intake manifold. Questions:
1) Could fuel lines be clogged after sitting for over a year?
2) Area driver's side next to spare tire, underneath jack storage, where return fuel lines are clustered (nuts are rusted and need to be sawed off)---some type of fuel regulator here? I thought fuel pressure regulator was on fuel pump assembly.
Camry :: 2002 - No Start / Check Fuel Pressure System?
I recently purchased a 2002 camry 2.4l 198k miles from a friend. His mechanic said engine was on it's way out so the next day after work the car didn't turn on so he thought his mechanic was right. So he told me about it and said it needed a new engine so me being a guy that likes to purchase broken down things I got it. I had it towed home and was going to mess with it on my free time.
So today I got under the hood and first thing I did was spray starting fluid in the intake. It turned on and was running good then shut off. First thing I'm thinking is fuel pump. When I disconnected the fuel line to the fuel rail and primed it it had fuel gushing out.
So now I want to check if the fuel pressure is right. I know the 5th generation camrys have a different fuel system that's kinda new to me. ( I know I'm out dated, I mess with diesels and older Hondas) so my question is what steps or processes of elimination steps should I take to keep this car running? How do I test the fuel pressure system on this car? Oh and before I purchased the car he said he "super filled up" the tank.
Ford - Freestar :: Replaced Fuel Pressure Sensor And Now Won't Start
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View 6 RepliesMercury - Mountaineer :: 2005 - No Fuel Pressure - Won't Start Easily?
On my 2005 Merc Mountaineer AWD, I've had the fuel pump and fuel filter replaced, crankshaft sensor, ECM relay for the fuel pump, starter, and spark plugs replaced, but to no avail. Car starts when it wants to, but when it doesn't, it'll usually take three to ten minutes of cranking on and off before it fires up. Ford dealership and second repair shop confirmed no fuel pressure to the fuel pump when the vehicle doesn't want to start and recommended a new fuel pump. Problem is, I've already paid the first repair shop for that same service and its gone back to them three times. Could this be electrical as the first shop is now claiming or are multiple mechanics missing something? Second shop replaced the ECM relay out of caution, but the problem persists.
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The security light wasn't staying on so we thought it must be the ignition switch. That didn't fix it either, we just got the ignition switch back together (not the actual switch but the wiring harness) and it's not starting again. It will start after some anguish and cursing at it. Seems like messing with the wires going to the fuel pump or hitting the cover over the fuel tank will cause it to start. I haven't checked it yet but I can guarantee it doesn't have any fuel pressure.
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I have a 95 Ranger 2.3 with a manual tranny. In the past I have had problems with this truck not starting do to a bad inertia switch and numerous fuel pumps. A couple of weeks ago I pulled the truck off of the driveway into the street and let it set there for a few hours. When I went to put it back on the driveway it would not start. I got it pushed on the side of the garage. I did my normal routine of doing a pressure check. I had no fuel pressure so I assumed that it was the fuel pump (as usual) so I dropped the tank and changed the pump.
I got it back together and it still wouldn't start. I checked the fuel pressure and the manifold still had 0. So I started my diagnostic. I have power from the fuse to the fuel pump relay. I then checked the wiring at the inertia switch and found that there is no voltage with the key on at the supply side of the inertia wiring. I verified continuity between power distribution block and the inertia switch. I put in a new fuel pump relay and it still has no fuel rail pressure and there still is no electric signal at the inertia switch. Where to go from here?
Ford Ranger / B-Series :: 2001 - No Fuel Pressure At Start
2001 Ranger, 108,000 miles, good regular maintenance per the Ford Schedule. 4.0L manual trans.
I changed the fuel filter 20,000 miles ago. This has been a recurring issue anytime my fuel level was low, about 1/4 tank or less, and when the truck was warmed up, hot. The fix in the past was to add fuel and let the truck sit for awhile. Now, today I drove home for lunch and when I tried to start the truck to return to work, it wouldn't start.
Same conditions, low fuel level and it was warmed up. The engine will turn over and start to run with ether in the air box, so it's definitely fuel related. A fuel pressure gauge on the Schrader valve got a zero reading, not even a flicker, and no residual pressure after shut off.
Could this be only a fuel pressure regulator issue? Or should I prepare to replace the fuel pump? Is there a fuse that might be blown?
Golf/GTI VI :: 2011 - Intermittent Low Fuel Pressure
My 2011 tdi has 18k on it and yesterday the glow plug squiggle on the dask lit up and started flashing. At this point the car had no power so i pulled over and called vw. They were very prompt and got me towed to a dealer but the dealer was unable to find anything wrong even though the malfunction threw a code. I just finished a three hundred mile trip after leaving the dealership and the car worked perfect.
View 3 RepliesGolf IV R32 :: Fuel Pressure Drops In Seconds
This problem just cost me a new starter and flywheel, cuz after cranking my engine so many times the starter mess up the flywheel teths, anyways, i install a fuel gauge and i find out that my pressure drops in seconds, like i turn the key on (pos ii) and but the time i get out the car to the engine bay to look at the gauge, the pressure is almost ZERO
When I open the door the fuel pump primes and built pressure, when i turn the key i heard the pump primes too, but why does the pressure drops so fast?
I have an aeromotive fpr, and a bosch in line pump, turbo set up and 550 cc injectors( brand new )...
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I took my fuel pressure regulator off hoping it would get to my green top coolant temp sensor. It doesn't Now when I put it back on its leaking? I didn't depressurize the fuel line first. Can this be the cause? If so do I just open the gas cap, pull the fuse for the fuel pump, and then re-insert the fuel pressure regulator? or do I need to get new O-rings for the regulator?
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Getting a fuel pressure to low fault code. What could be wrong! 2010 GLI....
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