Golf IV / Jetta IV :: Stalls And Shut Off While Connecting To VCDS
So I am having this weird electrical issue when connecting VCDS. Every time VCDS begins to scan, the door seems to receive an unlock command and then the car will stall and shut off. I have tried doing different things but no luck. Possibly a bad ground somewhere? Also, when the car stalls out, VCDS then picks up a few codes. I can clear the codes just fine but every time this happens, the codes return. Here are the VCDS codes:
Address 01: Engine
Labels: 06A-906-018-AEG.lbl
Control Module Part Number: 06A 906 018 J
Component and/or Version: MOTRONIC M5.9.2 AT V06
Software Coding: 00001
Work Shop Code: WSC 00066
VCID: 2959A211D3043F762A-4AE4
8 Faults Found:
17633 - Fuel Injector for Cylinder 1 (N30)
P1225 - 35-00 - Short to Ground
17634 - Fuel Injector for Cylinder 2 (N31)
P1226 - 35-00 - Short to Ground
17635 - Fuel Injector for Cylinder 3 (N32)
P1227 - 35-00 - Short to Ground
17636 - Fuel Injector for Cylinder 4 (N33)
P1228 - 35-00 - Short to Ground
17859 - Secondary Air Injection System
P1451 - 35-00 - Short to Ground
17829 - Secondary Air Injection Solenoid Valve (N112)
P1421 - 35-00 - Short to Ground
17833 - EVAP Purge Valve (N80)
P1425 - 35-00 - Short to Ground
17880 - EVAP Leak Detection Pump
P1472 - 35-00 - Short to Ground
It seems that only the engine controller is being affected. Assuming that the car doors run under the same controller?
Golf IV / Jetta IV :: MK4 Cranked Fine But Would Not Start - VCDS Code
I just bought a 2002 Jetta 2.0L with automatic trans and about 98000 miles on the odometer.It drove fine on a short test drive. It drove fine on a 45 min drive home after which I parked it for a short while (about an 60-90 mins.) Then I tried to restart it . It cranked fine but would not start. After 3 or 4 attempts I let it rest for a min and then it started. And the CEL came on.
This was a few days ago. Today I finally got a chance to scan it with these results:
VCDS Version: Release 15.7.3 Running on Windows 7 x86
[URL] .....
Address 01: Engine Labels: 06A-906-032-AVH.lbl
Control Module Part Number: 06A 906 032 FR
Component and/or Version: 2.0l R4/2V G 4070
Software Coding: 00003
[Code] ....
I'm new to MK4's and I'm at a bit of a loss as to where to start. It looks to me like there's a problem with both the fuel pump relay and the crank sensor. But what to make of all the short to ground codes. Could they be caused by a bad fuel pump relay?
Golf IV / Jetta IV :: 2.0 Engine Is Sputtering And Rough Running On Morning Start - No VCDS Fault Codes
I have a 2008 MK4 2.0 with only 53,000kms. At 40,000Kms I put new OEM spark plugs.
Just recently, every morning when I start the engine is sputtering and rough running. The engines want to die but I give a little gas, and run rough like it is only firing on two or three cylinders.
When it gets to the normal operating coolant temperature it runs without any problem and I can use the AC. Its only give me this problem on the first start of the day.
Does not have any MIL light on the instrument panel. I scan it with VCDS-Lite and do not found any fault codes. The only thing that's come to my mind is to change the Green Coolant Sensor.
Golf IV / Jetta IV :: Won't Boost Past 4 Lbs?
my car into VAG COM and since then it hasn't boosted past 4 lbs. it has Revo stg 2, K04, aftermarket side mount, full exhaust and a couple other bolt ons. Before the car was spiking at around 23/24 lbs. after pressure testing the system I found that the turbo inlet pipe was lose, so I tightened it. Still no change. I tried holding the battery terminals together for 10 minutes to reset the ecu and I also tried clearing the codes through a handheld code reader. No codes even come up anyways for this. The car is a 1.8T.
View 4 RepliesGolf IV / Jetta IV :: Car Loses Boost Throughout The Rev Range
So my 2001 1.8t Golf is having some issues holding boost. I have a Gonzo stage 2 tune, CTS FMIC, Forge 008 Diverter, Silicone inlet and MagnaFlow Exhaust. I've also done the whole Evap, SAI delete and installed a catch can.
Starting in 2nd or 3rd at WOT the car spikes up to 18psi and then progressively loses boost throughout the rev range. Close to redline the boost drops to 5 psi or so. It seems to be dependent on the revs. In fifth gear the car holds 18 psi much longer as the revs don't increase as fast.
There are no CELs. I've done multiple leak tests starting at the air box and plugging the pcv/catch can system as well as at the compressor side of the turbo. None of the tests revealed a leak anywhere in the intake system. However, when I stuck my ear very close to the valve cover I could hear what sounded like a very small air leak coming from inside the valve cover. I took a look at the wastegate actuator and it seemed fine, no play in the rod, no loose bolts and to move it just requires enough force to compress the spring and it returned to its original position.
My thoughts are that it could be a fueling issue or turbo in the process of dying maybe.
Golf IV / Jetta IV :: Slight Drop In Boost
Just noticed today that I have a slight drop in boost. Normal boost is 1.5 bar but today it is running slightly lower boost and does not have the same pull through all the gears.
2001 mk4 1.9 tdi golf
Golf IV / Jetta IV :: Whistling Noise When Hit Boost
I just recently notice a whistling noise when I hit boost. I'm not sure but it sounds like it is coming from my gauge. I'm not losing boost pressure. I do have a glow shift gauge. The most recent install was the TIP which I clamped on to the turbo but I'm wondering if it isn't on tight enough.
View 2 RepliesGolf IV / Jetta IV :: Car Wouldn't Run 10 Psi Of Boost After Stop
I was riding along today everything running fine then I came to a stop sign and when I pulled off my car wouldn't run 10 psi of boost it was only running 5 psi so I when to a buddys checked everything over and all my piping looked fine so I went up the road and everything was fine so when I started going home it did the same thing pulled of shut the car off pulled off and it was fine again.
View 5 RepliesGolf IV / Jetta IV :: Chirping Noise Under Boost?
I think my stock DV is going bad, my car makes a weird noise under boost?
1. Only happens when first starting the car after it has been sitting for an hour or a few. (not overnight)
2. Does NOT happen when first start in morning.
3. Goes away after like 5 minutes every time and the normal WHIIISHH sound comes back like it should when I step on the gas.
4. It does not make the sound at idle.
This recording I made was of my car being revved up after it sat for one hour.
[URL] ...
Golf IV / Jetta IV :: Surge / Stutter - No Boost Leaks
Replaced my coil packs/sparks, and just got around to changing my N75 valve today. The rough idle issue is gone but now when I go WOT it boosts but goes from 15psi-12-13-12-14-12...etc. I've checked and there are no boost leaks. I do have a CEL saying I need a new bank 1 sensor 1 Oxygen sensor. If it is that, why did this problem arise as soon as I changed the N75 valve and wasn't present earlier?
View 1 RepliesGolf IV / Jetta IV :: Car Won't Go Into Boost, 2 Error Codes Detected
I was having an issue with my car not going into boost so I plugged my code reader in and it had 2 codes 1 was p1200 n249 malfunction and the other was diverter valve malfunction so I did the quick easy one and got a new factory diverter valve but it still doesn't go into boost and still reads p1200 n249 what do I need to replace or should I do the n249 bypass it's a bone stock jetta 5 speed.
View 5 RepliesGolf 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 :: Engine / Boost Complication After Stationary
I got a Mk7 in October and my Mk4 has unfortunately been parked since. I started it and let it idle to warm once a week or so when I went on Vacation for 10 days. Before going on vacation I moved the car and after warming up everything seemed to be normal. Unfortunately I neglected it once I got back and haven't started it since the beginning of December. I'm selling it here soon and so went out to spruce her up tonight and upon trying to start the battery was dead so a buddy came over and jumped it.
It started right up but immediately was idling funny which I assumed was because of the cold (it's 25 degrees F tonight and has gotten in the negatives in the past few weeks due to snow storms). I shut it down and checked the fluids which were all pretty low especially the oil due to a small leak. So I topped off the all the fluids and started it again and let it idle to full warm.
I decided to take it for a drive around the block and it was still driving pretty rough, no knocking or anything but the engine was "sputtering" and the CEL was on and flashed when I gave it gas. I'm running stock boost so my gauge usually reads around 12psi but is now only going up to 3-5 psi and the vacuum is only at -15 which i think used to idle at -20. I drove it to the gas station and filled it up from a little less than a half tank but it's still running the same and there's a slight burning smell from the exhaust.
I was worried it was my turbo but it was perfectly fine a month ago. I was thinking of throwing some Seafoam or Heat.
Golf IV / Jetta IV :: Boost Gauge Is Reading Peak Of About 15 - 16 PSI
Okay, here's the car
AWP 1.8t mk4 GTI.
- stock DP
- Forge 007 splitter adjusted 25 clicks
- Swiss cheese stock intake with k&N high flow
- APR stage 1 93 tune.
My boost gauge is currently reading peak of about 15-16 psi. I replaces some vacuum hoses that appeared to be worn, and to no avail. I have no CEL, and no codes thrown at all. This sound like a boost leak.
Golf IV / Jetta IV :: Loud Screech While In Full Boost
I just replaced my my k03s with another one with only 20k on it. After I did this, I noticed a loud screech sound when in WOT. The screech lasts a little bit after i left off the gas when revving in neutral. I've been doing research on here, and I've read that it could be a boost leak somewhere or even the turbo dying. The shaft play is minimal though.
View 17 RepliesGolf IV / Jetta IV :: Boost Fluctuating Instead Of Hitting Consistently
Ok so my 2002 gti is having some boost problems... Instead of hitting boost consistently the boost is fluctuating for example hitting 12 psi then 15 psi and it just hits and bounces back to 0. what could be problem I was thinking bad downpipe, bad waste gate, or bad n75 valve.
View 6 RepliesGolf IV / Jetta IV :: 2004 1.8T GLI - No Vacuum At Boost Gauge
Bought a 1.8t 04 gli. Was boosting 15 pounds so i did a boost leak test. Found pcv up hose from valve to y pipe at valve cover was almost blown in half, so i replace all of that stuff with oem.
Boost leak test again, found where boost gauge is hooked up to, turbo outlet to n75, the hose was leaking, i fixed that.
Boost leak test yet again, n75 was not clamped down, so clamped that.
Boost leak test one last time, held 10 psi before blowing the cap out of the intake. Which is pretty dangerous, my cap is made out of a spray can cut in half. Sounds like a canon. Anyways i heard zero leaks.
So now I am boosting 18psi and holding perfectly fine. Why I am showing ZERO vacuum on my boost gauge??
Golf IV / Jetta IV :: Different Boost Pressure When Idle And Driving?
I bought my GTI used and don't know what software its running but I have some questions about the boost pressure. When I'm in Idle the car will only boost to about 7-10psi when i rev the engine in neutral, But when I'm driving it will boost all the way to about 17-20psi if I really stomp it, 15psi if I'm just giving it a bit of "go". The car takes off and goes really quick, seems like it has a lot of power so I doubt there's a boost leak but I'm wondering does the car boost differently in Idle because it knows its not moving?
View 2 RepliesGolf IV / Jetta IV :: 2003 1.8t - Hesitation In Boost ( 3rd / 4th And 5th Gear)
2003, Jetta 1.8t, 5 speed, 76,500 miles ... The other day I was driving and all of a sudden I had a hesitation in 3rd gear. I have relized since that this hesitation occurs in 3rd 4th and 5th gear, but not 1st or 2nd. I am going to change the spark plugs tomorrow in hope to fix this problem. The hesitation occurs whenever you get into the gas and begin to accelerate(typically around 3000RPM and up). There are no dash lights on at all and the cars is running fine besides the hesitation.
View 2 Replies