Golf IV / Jetta IV :: 2005 - Fuel Pressure Regulator Location
Where is the fuel pressure regulator on a 2005 Jetta 2.0 BEV. It's nowhere on the fuel rail.
View 1 RepliesJeep - Cherokee :: 1987 - Starts Immediately If Relieve Fuel Pressure At Fuel Rail
I have a 1987 jeep cherokee with inline 6 and multi port injection.
Sometimes this vehicle only starts when hot
Some times only when it cold
I have recently fixed the fuel leak.
When its hot or cold and not starting if i relieve the fuel pressure at the fuel rail, in most cases it will start immediately. However if fuel pressure relief does not work. I disconnect the vacuum line at the what looks to be the EGR valve or the pressure regulator at the front end of the rail, then usually starts right away.
I have not tested at this time to see if the fuel pump is failing nor have i tested fuel pressure. I am trying to narrow down the problem to one specific part. There is no problems with cranking. There is spark - coil, plug, dist cap have been replaced.
It seems the problem is with fuel delivery of sorts. It was mentioned that sometimes the heat from the engine could be heating the fuel rail to a point which turns the fuel into a gas not allowing it to atomize.
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.
Golf IV / Jetta IV :: 2002 - Brakes Has No Pedal Pressure?
Im having problems with my brakes mainly being pedal pressure. It's really really soft and has no bite till near the bottom which could be due to the res being low on fluid since both rear calipers seem to be leaking from the handbrake mechanism. When I got my car safetied they fixed my handbrake but I think they put the adjuster to tight cause I felt more rub then what I thought was normal but could be completely wrong. Not to mention this starting happening the day after I got it safetied
the handbrake bracket didn't retract like the other side but since then I loosened the compensator and pulled both side handbrake lines off and retracted the handbrake bracket by hand so now it looks like the right side.
Golf IV / Jetta IV :: 2002 / 1.8t - Low Oil Pressure At Slow Speeds?
I have an 02 Jetta 1.8t automatic with about 140k miles. It has always been a great car. Last week, I was taking off from being stopped at a light and I heard a loud beep and saw that my oil pressure warning light was blinking! It blinked 3 times and then was gone, now last week temperatures were very low for my area. Today was actually pretty warm and sunny. I was stuck in gridlock traffic, it took me 25 minutes to go 1/4 mile. Idle, Idle, creep forward... Idle, Idle, creep forward...etc.
I noticed that the temp gauge read over 200, not in the red, but too close for my liking. Then a moment later when it was time for me to move up a bit, there was a beep and then that low oil pressure light again, 3 blinks and gone. I was panicked. I shut my engine off while I waited for traffic to move and when I would move forward it was the same thing. I finally pulled over, as I was stuck in traffic about 1000 feet from a friends house. I stayed there for 4 hours and then decided to fire her up again. Totally normal.
40 Minutes later as I rolled into my driveway, boom there was that light blink again... I am really concerned but confused by the light not staying on continuously and not having the check engine or any other warning light ever come on. It's weird to me that when this happens I am either taking off or coming to a stop, never going more than 5mph.
Golf IV / Jetta IV :: Slam Driver Side Door / Fuel Pump Primes / Starts Then Stalls
I have been without my dub for over a month mk4 gti/golf awp motor 1.8t manual transmission and have ran multiple scans and replaced multiple parts. I am suffering from a no start condition, start and stall immediately, and have troubleshot many problems.
Most recent vcds scan results are: intermittent door module fault (not faulty, not implausible, "intermittent") (j386) Speed sensor implausible (g28) (already replaced with no change) open circuit or short b+ fuel level sensor fault.
I have had the driver side door taken apart on multiple occasions and found: no cracked joints on the pcm of the LOCK module (solder covered by brownish/gold sealant?) Two breaks, 1 in the ground and 1 in the hot wire between the chassis and the door and since applied electrical tape to the chafed part of the door wire harness. I have ran multiple scans since applying the tape with various results.
After applying a maintainer and verifying full charge on BRAND NEW BATTERY I ran scan with above codes.
I have in the last month replaced coolant temp sensor, fuel filter, fuel pump relay, above mentioned battery, and installed toggle switch to lock module micro-switch, speed sensor. About 5-10k miles ago I replaced the fuel pump with vemo brand from ecs tuning and fuel pump relay.
I have re "seated" and cleaned all terminals, below and on the battery as well as on the transmission, have "checked" the ground just in front of the ecu and removed enough parts to place my hands on it to check for a loose condition. Also checked ground on top of block next to coil packs. I've checked pillar a for chafing and the ground next to pillar A and the ground just below the CCM.
I have also taken a mallet and attempted to re create this door slamming condition by tapping everywhere around the door jam on the chassis and door with no change. Also with the door LOCK module removed, I have tapped on it to see if pump would prime, no change...........
After sitting in my recaro imitation cloth seat totally defeated I realized that the intermittent fault code was pointing the "integrated window motor/DOOR module" that was the only thing I hadn't attempted to "test" (originally thought window motor was only a window motor)
Verified continuity to the door module, and verified continuity to relay panel, fuel pump and lock module........... Also tapped on the DOOR module itself with no change.
Piece the whole door back together, slam the door and bam fuel pump primes........... (also massaged the repaired-chafed wires before and after re-installing back into door, with no change/prime.) After sitting a while sometimes it will prime by itself......(with any of the 3 fuel pump relays I have for this car)..
Replacing 1 fuel part after the other over the 4 years I've owned the car has temporarily resolve my issue, until now. (Also have tapped around gas tank/retainer ring on the pump to see if fuel level sensor fault was a culprit). I don't believe this to be the issue because I've netted this fault in the past and has never cause a no start condition or come back after clearing when replacing fuel related part.
After slamming the door I have noticed the pump primes in waves, like a hum hum hum instead of 1 solid hmmmmm and when the car DOES start (when the pump primes) the pump continues the hum hum hum condition before dying. (I have gone as far as a test drive and I rev the engine and put in gear but acts as if i have a bad clutch, all rpms, no horse power like it's slipping condition from a bad clutch
immo light goes off when key in on position, epc and check engine light are off after car STARTS when slamming the door. With key in on position hear a loud click under hood (relay station I'm certain) but the throttle body buzz's until the chime sounds with door open (have not tested this when it DOES prime.....)
Golf IV / Jetta IV :: 2002 GTI 1.8T - Unknown Fuse Blowing Constantly When Engine Starts
I have a 2002 GTI 1.8T with the AWP engine and tiptronic. There is a fuse in the picture below that blows as soon as the car is started. It is located next to the brake booster on the firewall. It does not blow when the ignition is turned on, just when the engine actually starts. I'm not throwing a check engine light, pulling a scanner code or noticing any of my electronics not working. I took a 20 AMP fuse out and replaced with another 20.....and have since blown 5 of them trying to diagnose the problem.
View 10 RepliesGolf IV / Jetta IV :: 2002 VW Intermittently Starts / Jerking Feel And Sound Of Misfiring
The car is a 2002 VW Jetta, automatic 1.8t GLS. 146k miles on it. Has an external amp/sub wired up by my brother who is an MECP certified tech and has been doing car audio and overall Audi/VW for years.
I was driving, nothing out of the usual, this car is my daily. Stopped because of traffic and my car died in the middle of traffic, the gauges (tach, speedo, gas, etc) spiked immediately, which I assumed meant loss of electricity, but my radio, headlights and everything else stayed on. The oil and Battery lights came on as well. Tried to start it, it was trying to start, and was cranking quickly, but wouldn't turn over. I got it out of traffic. I pulled my amp power and the car turned over and started driving like normal, so i figured there had been a short in the wire and that was what caused my issue. Drove about a half mile down the road, car shut off again, car said it needed oil this time. checked the oil, there was plenty, but i put more in to be safe, and it turned right over and i managed to drive it about 30 minutes and got it back to my house.
So, my brother and i look the car over, couldn't find anything really wrong with it, so we took it out for a drive, no problem at all for the first few minutes of driving. Car shuts off again, doing the same thing, but just the battery light came on. My brother jumped my car, it turned over, but as i started to drive it, it was a lot more rough with shifting (possibly tied to electrical problems because i know there is a solenoid cluster for automatic transmissions), i mean you could actually hear the gears shifting and the car was kicking through each gear, as well as my driver side headlight not turning on (just installed brand new xantec 6k 55w HIDs, but i dont think those are the problem because the problem started before i installed the HIDs) and died 3 more times before i got it home, having to jump the car every single time with symptoms the same as the first time it died without the oil light. Another thing i noticed is that the car seemed to only die when i hit the brakes and the car went to low RPMs, which lead me to believe a major vacuum leak. At idle the car also seemed like it was misfiring even though the CEL was not flashing, it just had the jerking feeling and sound of misfiring.
My brother and i take a better look into the bay area, and noticed that the top of my engine was covered in oil, from the intake manifold back. I know my car has been leaking oil, but not spraying it. We pulled everything apart, totally cleaned the engine bay area out including MAF, spark plugs, coil packs etc. The engine bay area looked practically brand new. Now i do know that my car has had a vacuum leak (no boost gauge to tell how bad, but the brakes were a little bit less responsive and the car was acting as though it was misfiring despite the fact that the coil packs and spark plugs are brand new) and we couldn't find where it was, and we thought that maybe that was the problem. A lot of the vacuum line was dry rotted and falling apart and some parts weren't even connected anymore from that, which we replaced all of the line we could find to eliminate the idea of a vacuum leak causing the car to die when i hit the brakes. We also tested the battery with a multi-meter which read variably between 13.8-14 V, which if i understand correctly is within normal range, but oddly enough we put the battery through a stress test including turning on defrosted, turning sound system back on, headlights on etc, and the voltage didn't read much different, still bouncing between 13.8-14.
When tearing things apart, we also found that the starter solenoid was unbelievably loose due to a bad transmission mount, and one bolt was missing, so we were thinking that could be arcing causing the problems, but when the solenoid was tightened down, the problems still persisted.
Started the car, let it warm up, and it seemed perfectly fine. I drove it into town without problems, but forgot my wallet at home, so i had to turn around and go back. Almost made it home, the car died while stopping at a stop sign. Tried turning it back over, nothing the first 3 times, let it sit for about 5 minutes and the car turned right over as if nothing was wrong. Died again when i made it into my driveway about 0.5 miles away and the symptoms repeated until the car finally just turns on like normal now, but the idle is at 1100 RPMS (not sure if related or not) even though the car is at the optimal temperature. I tried driving it again after the car starts normally like it does now, but it just repeats the symptoms that it has been, cutting off but leaving the stereo, headlights etc on. I managed to get it back in my driveway.
Golf IV / Jetta IV :: 2002 - Coolant Goes Low After Driving Unless Relieve Pressure In Reservoir
Why my 2002 Jetta 1.8t does this?
After I drive for a while I have to [slowly] open the overflow cap and relieve pressure in order to not lose coolant while the car sits. It steams for a bit when I open the cap and then the coolant rises in the reservoir then I close it.
If I don't do this then the car loses coolant but I don't see any leaks visible under the car.
Golf IV / Jetta IV :: 2002 VW 1.8t - How To Replace Fuel Line
I need to replace the fuel line that connects to the fuel rail, it is old and corroding and drips out gas when I dry so I need to replace it. I have the new fuel line for it but how would I go about taking it off and the clamps? Just wanna make sure I am doing it right.
View 1 RepliesGolf IV / Jetta IV :: 2002 VW Does Not Start / Fuel Flow Restricted
The Symptoms: Car decided not to turn over for my son one morning, when I came home I tried with my key and the engine did turn over but immediately died.
Turned on key to power and watched for lights like the immobilizer/key but that came on and went off no problems there, did the same with both keys and the immobilizer/security key light went off fine.
Read for codes and there was a P0320 which pointed to Crankshaft Position Sensor. Order the part from good old Rock Auto and 2 days later it came, installed, cleared out the code, tried to start, did not start.
Decided to spray some starter fluid into the throttle body to get it to turn over in hopes a new code would come out.
It did fire up for a few seconds and did throw another code, this time P0321. That code points to the same sensor I just replaced.
Figured I would check to ensure the fuel pump and relay were working so I wired from positive and negative battery terminal to the outer plug clips at the fuel pump and I heard and felt it click. Not sure if it should prime and make more than just a click.
In my other cars you can clealy hear it prime for more than a second so not sure if the fuel pump is really the culprit here.
The car has 125K and the pump is original I can see.
I did check the relay fuse under the drivers side dash and I can feel/hear it click when I turn the ignition on.
I also did check all of the various fuses in the side compartment that have to do with the engine, they all look good and tested with multimeter as well.
So now I did order a new fuel pump, what else to try out? I did change the fuel filter at 100K so do not believe that is causing the issue. Not sure if the fuel regulator by the rail could be an issue.
It seems like all of a sudden fuel is not being delivered and with faulty injectors or plugs, they throw a code for misfire etc. Also starter seems to be fine, no griinding/smoke etc but was thinking about taking it out and over to Advance to have them check as well.
Golf IV / Jetta IV :: 2001 GTI Engine Stumbling - Car Barely Accelerates
The issue: Check engine light on. Codes pulled, and he's getting O2 sensor codes (aftermarket exhaust has caused that since he bought the car) and 17705 Pressure Drop Between Turbo and Throttle Valve. The car barely accelerates, and you can hear the turbo spooling, and the engine has small surges. I had VCDS going and went for a drive and noticed his N75 Valve duty cycle was stuck at 5.1% no matter what throttle position he was in. So we're going to the wreckers this afternoon and will pull an N75 valve? The DV is stock and appears to be in good condition, but if changing the N75 doesn't work then that's the next spot I'll look.
View 7 RepliesFord Excursion :: Turns Over But Starts To Shudder And Buck - Fuel Pressure Gauge Reads 0
Just had the tires rotated , then shop tech backs the X out of the shop, parks it and then hands me the keys. I hop in and turn the key , the truck turns over , but starts to shudder and buck, and fuel pressure gauge reads 0.
View 3 RepliesFord F-150 (2004-2008) :: Truck Barely Starts And Will Not Accelerate
I have a 2004 fx4 with a 5.4L. i have an edge performance programer and these are the codes that are coming up....
1) P0121
2) P2104
3)P2106
4)P2111
5)P2135
I have cleared these codes and reset the main computer the truck barely starts and will not accelerate...could the spark plugs be an issue...
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???
Toyota - Mr2 :: 2000 Cranks Fine But Barely Starts When Engine Warmed Up
My 2000 Toyota MR2 started to act up a bit lately.
I noticed that the car cranks fine, but turns over very weak. almost seems like it barely starts. This happens ONLY when the car is already warmed up. This does not happen when car is starting from cold start. Like, starting first time in the morning is fine, but after 10 minutes of driving, then turned off, the subsequent starts are weak as a fart from a butterfly. But it does start, and when it does... it seems to drive okay.
Now, I've been hearing it can be leaky fuel injectors, or... Mass Air Flow sensor, .. or .... bad fuel pressure..(which may be part of leaky injectors?)
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 Ranger / B-Series :: 2002 - No Fuel Pressure With The Power On And Engine Not Running
I have a 2002 Ranger with a 3.0/auto with about 180K on it. It runs good but for the past 6 months I have had a problem starting it. It does the same thing hot or cold but is a LITTLE easier when cold. It is very hard to start, you have to grind the started for about 30 seconds then it starts right up.
I checked to see if I could hear the fuel pump when the power is turned on and yes I can. But after checking the fuel pressure, there is no fuel pressure with the power on and the engine not running. Once the engine starts, there is about 65-68 pounds of fuel pressure - and the truck runs just fine. Starting is the only problem.
I was told I had to replace the fuel pump. Is the electric pump in the tank the ONLY fuel pump on the truck, or does it have a combination of the electric/tank pump and a mechanical pump on the engine?
Ford Super Duty (1999-2016) :: 2003 F250 Starts / Barely Bounce Off Zero RPMs And Die Out
I have a 2003 F250 with the 5.4 and I believe I am having a fuel delivery issue. I took out yesterday and stopped to get a drink at the gas station, came back out and the truck wouldn't start long enough to idle. It would start, barely bounce off zero rpms and die out. I checked the fuel interia switch and it was down. I tried turning the key back and forth thinking it might reset the fuel pump or something and that didnt work. I get the truck towed home and couldn't get it to start last night. I go out this morning and it starts, come home from work and now it won't. This happened about 2 years ago and I never did anything about it, but it took 2 years for it to happen again.
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