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 RepliesGolf 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 :: Oil Pressure Light Comes On
the oil pressure light comes on for a year now I will pop on, on hot days, when I go into low rpm like coming off the high way or stuck in traffic. I changed the op switch and put 10w40 in with no luck.
View 3 RepliesGolf IV / Jetta IV :: Stop Oil Pressure Light Comes On
stop oil pressure light will come on at 1800 to 2000 rmp i just changed the oil to full synthetic now i see the oil light come on at 3000 rpm i changed the oil pump and sending unit and the car sounds good no rattles what could be the problem ?? its been doing this for 2 years now
View 3 RepliesGolf IV / Jetta IV :: Oil Pressure Warning Light Came On
So I'm having some problems with the oil pressure warning light beeping at me. First time it came on I stopped immeadietly, checked the oil and it was fine. (I just changed it when I got it) so I started it up again and it was fine for a few days. Then it came on again Real quick then went off. Now it comes on once or twice every trIp. I've replaced the switch already but it was still coming on so I installed an oil pressure gauge and I've confirmed my suspicions that the engine is indeed not loosing pressure. It sits at about 30ish at idle and goes up to aboit 50to 60 while driving 2-3k rpm. Yet the Damn oil light keeps blIbking. I'm assuming it has a wiring problem. Is there a way to shut this up or do I have to trace wires til I find the prob
View 4 RepliesGolf IV / Jetta IV :: 2006 - Getting Low Oil Pressure Light?
I have a 2006 golf mk4 GTI 1.8t and I've recently been having trouble with my low oil pressure light coming on. So the light will only come on when the engine Is hot and drops below 2k rpm but ONLY under 2k RPM. Why this is happening is my oil pump going bad.
View 7 RepliesGolf IV / Jetta IV :: 2001 - Oil Pressure Light Comes On When The Car Is Moving
My oil pressure light is blinking and there is a faint smell of burning oil. I recently had an oil change after letting my car sit for 5 months after the oil pan was replaced. I have checked oil levels and it is just right. I have asked around and everyone comes up with a different answer but they also say they are guessing due to lack of experience with VW's. The light only comes on when the car is moving. When idling, everything appears to be fine.
View 16 RepliesGolf IV / Jetta IV :: Oil Pressure Light Turns On While Driving
I have a 2001 Golf 1.8T and while driving the oil pressure light turns on and the meter goes beyond the midpoint. I brought it in to a shop and they told me I need to change the oil pump and will cost $900. They told me it's because I don't frequently change oil and once the new oil is in, it caused the problem and only way to drive the car again is to replace the oil pump.
View 19 RepliesGolf IV / Jetta IV :: 2006 - Low Oil Pressure Light Coming On
I have a 2006 golf mk4 GTI 1.8t and I've recently been having trouble with my low oil pressure light coming on. So the light will only come on when the engine Is hot and drops below 2k rpm but ONLY under 2k rpm. Why this is happening is my oil pump going bad or what???
View 2 RepliesGolf IV / Jetta IV :: Oil Pressure Light Blinks Every Now And Then / Sender Location?
2002 jetta GLS 2.0 ... I am looking to change my oil pressure sender/switch but I cannot locate it, my oil light blinks every now and then, I was told the senders go bad often and to try replacing it, I have no oil leaks, just changed the oil and new filter. I also have noticed that when I turn on the car in the morning, while idle is fine, as soon as i pull off there is some blue smoke trail, only in the morning when i pull off, does not happen again, why that could be?
View 5 RepliesGolf IV / Jetta IV :: Oil Pressure Warning Light After Driving For About 15 - 20 Minutes
I have a mk4 Jetta 1.8t. Problem started last night. After I drive for about 15-20 minutes the oil pressure warning light comes on. It doesn't feel any different and my oil is full. Could my pump be going bad? I hear a slight tick near the bottom of the engine on the passenger side. But the car idles fine and drives fine too.
View 17 RepliesGolf IV / Jetta IV :: 2005 - ABS Light Is On - Can't Clear The Code
I have an 05 GLI with many mods, far from stock. In the past i have tried to recode the ABS module with my vag com to ABS only because the traction control does not work when you make 300whp and im sick of pushing the button every time i get in the car. The module will not take the recode so i gave up. Then about a week ago the ABS light came on for no reason and i can not turn off the traction control with the esp button so i checked the code.
It said something about a system test (ill have to check it tomorrow to find out what the code was) i tried to clear it and it would come right back with no other codes. Then i took the car out and beat on it and the traction control still works (or trys to) and i hammered on the brakes and the ABS still works and the fluid is still full. Then i came to red light and i after i stopped i pushed the brake petal hard and the traction control light started flashing (im still stopped and not moving at all) It just kept flashing for over a minute even after i started driving. Then the tc light stayed on and the ABS light went off. As soon as i turned the car off and back on it was ABS light on and tc light off. Still only the same code stored. I tried recoding it to a car with ABS, ESP, and HD suspension and it took that coding. But still had the same code so i recoded it back to my oem one.
Golf IV / Jetta IV :: 2005 - Car / Door Alarm Light Goes Off
So in my 05 gti , the door ajar light stays on and when it does go off it will randomly blink ! I'm guessing there must be a loose connection somewhere ? Also all of a sudden my alarm will randomly go off . It's annoying . I'm not sure how to fix it .
View 1 RepliesGolf IV / Jetta IV :: 2005 - Engine Brake Light Comes On
My car developed a new light on the dash. Whenever I start to drive my e brake light comes on and stays on the entire drive. It randomly started doing this? It's a 05 1.8t tri with the o2j ...
View 4 RepliesGolf IV / Jetta IV :: 2005 - Intermittent Check Engine Light
2005 Golf TDI... I'm due for a smog check, and of course, in the last few weeks I've been getting some check engine lights intermittently. I'd rather take care of the problem before trying to smog. Anyway, here are the codes.
Confirmed
P0674 - Cylinder 4 glow plug circuit/open
P0673 - Cylinder 3 glow plug circuit/open
Pending
P0101 - Mass or Volume air flow "A" circuit range/performance
To be honest, I haven't learned all that much about my Golf TDI. Just normal maintenance. So, I don't know where to start.
Golf IV / Jetta IV :: Low Oil Pressure
I have a 1.8t and it has the dreadful low pressure issue, not quite sure if I have sludge or not but i've run some sea foam through it earlier to clean (I'm aware that sea foam is a solvent) and am going to drop the pan, clean it out and replace the pump and pickup and take care of all of it in one go. I plan on using the felpro 2.slow gasket instead of gasket sealant but my question is, how do I remove the tension off of the oil pump chain to remove the pump? i'm pretty new to Volkswagens so don't be to rough.
View 8 RepliesGolf IV / Jetta IV :: 2003 - Low Oil Pressure Only At Idle
I have a 2003 golf gti 1.8th awp with 160k miles. I was due for a change so I grab castrol edge 0w40 the euro formula like I normally do but the stp filter was on sale with it so i used that. a week later the low oil pressure light comes on when the cars fully warmed up but only at idle I can review it above 1000 and it'll go away. I decided to change the pressure sensor sense it's cheap and easy nothing. I also went to a Bosch filter which I had before same thing light comes on only at idle.
So I decided to drop the pan and clean the pick up there was some crap in it wasn't to over clogged. I did little notice plastic piece surgery in the pan but when I first got the car the dipstick was deteriorating and I know a few little prices fell in there. Also noticing a fairly clean looking motor and oil pump so I don't think sludge is a issue. Anyway I decided to try mobile 1 0w40 euro formula and I read k&ns 3001 filter is a good oversized filter. Anyway light still comes on only at idle, what next?
Addition info the the car it's a stage 2 apr tune with euros ports pcv hoses turbo inlet pipe 42dd's catless exhaust recently had a leak in radiator so replaced that and the fuel pump went out within the last month or two
Golf IV / Jetta IV :: Car Runs Fine But Won't Boost Over Wg Pressure
I just got done with a complete engine rebuild on my 02 1.8t jetta, had everything hooked back up and went to start it for the first time and it wouldn't. I went back looking for loose connections, nothing. Worked and banged my head for a day or two, I had fuel and spark but couldn't get it to fire. Finally I "choked" the intake to see if it was getting too much air and it fired right up. I unplugged my map sensor giggles and it starts up perfectly. I then hooked everything back up and what do you know it starts up and runs fine, but if I plug the sensor back in it kills the motor after about 10 seconds of running and won't start until I unplug the map again.
Car runs and drives but wont boost over wg pressure but that's probably because sensor itself is unplugged. I just wanna know what could cause it besides the sensor itself being bad. I ordered a new one waiting for it to get here (hoping it fixes the problem).. And I'm talking map (manifold absolute pressure) not maf (mass air flow), just in case people are confused.
Golf IV / Jetta IV :: 2003 - No Pressure On The Clutch Pedal
I just finished installing a new clutch kit on my 2003 Jetta Wolfsburg Edition 1.8 and I have absolutely no pressure on the clutch pedal, I am pretty sure I installed everything correctly. How do you bleed the clutch lines, how do you know if the slave cylinder is bad. When i push the clutch pedal it just goes to the floor with absolutely no return.
View 4 Replies