Golf IV / Jetta IV :: Check Engine Light Came On And Went Away - P0420 Code
MK4 GTi - My check engine light came on a few days ago and when I checked it, it pulled code P0420.
Just this morning, the check engine light went away.
Is this a common issue? Or should I go get it checked just in case?
Golf IV / Jetta IV :: Check Engine Light Came On - Code P0411
Just installed a short Ram intake on my 2000 Vw Jetta 1.8t. Had the Intake for about 250 miles and now the check engine light came on. Just pulled the code p0411 secondary air injection system incorrect flow detected. Is this just cause there is more air going through the MAF sensor?
View 11 RepliesGolf IV / Jetta IV :: Check Engine Light Is On For Code P0030 - O2 Sensor
I've been having an issue with my car and the check engine light is on.
The code reads : P0030
Heated oxygen sensor - bank 1 sensor 1
heater control circuit
2001 VW GTI VR6 ....
Golf IV / Jetta IV :: CEL Recently Came On Throwing PO420 Code
I own a 2003 VW Jetta GLS 2.0L 4 Cylinder and my CEL recently came on throwing the PO420 code (Catalyst System Efficiency Below Threshold (Bank 1)). So I replaced both the upstream and downstream O2 sensors. Well just one day after replacing the sensors the CEL came back on with the same code. I was wondering weather or not I should replace the whole catalytic converter or if there was anything else I should try. The car runs fine, exactly how it did when I bought it.
View 22 RepliesGolf IV / Jetta IV :: Check Engine Light Comes On - Code P0456 For Evap Leak
I have a 2005 1.8 TJetta GLI owned for about 2 months now. Gas cap warning pops up then goes away when I turn off the car then check engine light comes on. I've change the gas cap to new oem one changed the purge valve [URL] .... After a couple of weeks same issues again brought it to my mechanic he ran a leak detector and told me that there are Evap leaks. I read somewhere that I might need a need charcoal canister and a fuel tank.
View 12 RepliesGolf IV / Jetta IV :: Check Engine Light Went On And Code Read 3rd Gear Incorrect Ratio
Bought a Mk4 1.8T gti last year had only about 75,000 on it and drove it for about 10,000 miles. The check engine light went on about 2 months ago and the code read 3rd gear incorrect ratio. It still rode fine until about a week ago when it started slipping. Brought it to the local transmission guys in my town and got a quote at about $3,000-$3,500 to have the transmission rebuilt. The transmission is a tiptronic automatic 6-speed.
View 1 RepliesGolf IV / Jetta IV :: Check Engine Light Came On / P0135 Code For Sensor Heater Circuit
I have a 2002 Jetta 1.8t. My check engine light came on and it gave me the code P0135 sensor heater circuit. Bank 1 Sensor 1. We bought a new 02 sensor and replaced it. We definitely bought the right one too. Cleared the codes. After a little driving the CEL came back on with the same code P0135. What is wrong and how I can fix this?
View 6 RepliesGolf IV / Jetta IV :: Check Engine Code P0303 - Misfire
I have a 2000 VW Jetta 2.0l AEG engine with 190,000 miles and check engine code P0303 for the 2nd time in 3 months. I had this same code 3 months and 3000 miles ago and found the spark plug #3 to be fouled up. All other plugs and wires seemed to be okay so I replaced plug #3 and the problem went away. I suppose after I take off the upper intake manifold I am going to find the same plug #3 to be fouled up again. The engine is a typical AEG that I have to add 1 quart of oil every 1000 miles as it has been burning the same amount of oil since I acquired the car at 135,000 miles. I have read that the wrong piston rings were installed from the factory on a large number of these engines and VW says that if less than 1 quart of oil is burned after 7500 miles it is normal. I really don't feel like spending 2 hours every 3000 miles to replace plug #3 ? It might be time to part ways with my 2nd VW. As a side note, this car has been averaging 35.5 mpg over the last 55,000 miles that includes 50% city/ 50% highway driving. I coast to red lights and don't accelerate quickly with the 5 speed manual transmission to achieve hybrid like fuel efficiency.
View 1 RepliesGolf IV / Jetta IV :: 2001 - Getting Check Engine Code P0343 And P0321?
I just got a 2001 VW Jetta. I got it with the Check Engine light on. Went to my local AutoZone to get a OBDII reading, got codes P0343 & P0321. P0343 Camshaft Position Sensor A Circuit High Input B1. P0321 Ignition/Distributer Engine Speed Input Circuit Range/Performance. So for P0343 I got the Camshaft Position Sensor for $70 and for P0321 got Crankshaft or Speed Position Sensor for $110 ( FYI, Crankshaft Position Sensor & Speed Sensor are the same ). Paid $160 to get both sensors replaced. I know both sensors are easy to replace but it was easier to pay..
View 3 RepliesJetta - Volkswagen :: 2003 - Check Engine Light Has Been Staying On Solid / Code P0674
I have a 2003 VW Jetta TDI and the check engine light has been staying on solid (not flashing) for a couple of months. I took it to my local dealer who tested the computer and said that it was the thermostat and a related sensor. That answer didn't seem to make sense, and unfortunately I didn?t get the code from the dealer at the time. I did though have the code read recently at another shop and it said: "Code P0674 which is #4 glow plug circuit - Q13 - electrical fault sporadic." What this means?
View 6 RepliesGolf IV / Jetta IV :: EPC And Check Engine Light Come On
So for the past few weeks my check engine light has been on. I have a mechanic friend that scanned the computer and says i have a running lean code.... says it could be anything. So i have been driving the car since and now the epc light and drive train lights are coming on... car revs up and down and sounds like is going to die... got the car scanned and says something about the throttle position sensor... before all the lights started coming on i got my fuel pump replaced..... could a faulty fuel pump be the cause? I had my mechanic, clean the throttle body and it ran good for a few days... now the problem is back... I have a 2004 1.8 gti. Do i have to replace the throttle position sensor? Fuel pump again? New throttle body again? I read somewhere on here that a guy replaced some wires near the ECM and the problem went away...
View 7 RepliesGolf IV / Jetta IV :: Check Engine Light On (P0601)
So I get back from being stationed in Korea for the past 2 years. I get my car out of storage and the check engine light is on. I scan it and get P0601. I do some searching on the Tex and see that it's the ecu. I'm tuned on APR. the question is can I take it to a local APR dealer here in Houston and get the ecu looked at?
View 6 RepliesGolf IV / Jetta IV :: 2002 - Check Engine Light Won't Come On
I'm new to the VW world and just bought a 2002 Jetta 1.6SR about two weeks ago. I just realized that when I turn the ignition on before cranking, all the lights come up except the CEL and traction control light. There are no codes stored when we checked it with a scanner. I took apart the cluster today to check if someone had taped in front of the LED but there was nothing, and the LED was intact, it just won't light up! I put everything back together and when I turned the ignition on.
I realized that the traction control light came on for the first time but still nothing for the CEL. I turned ignition off and on again, this time both the traction control and CEL didn't come on. Whenever I unplug the cluster and install it again, the traction control light will come on once, then if I turn the ignition off then on again, it will stop working. I even removed the MAF sensor to test the CEL but it never came on! All the fuses are intact as well... So my question is, is this a faulty cluster, LED, or is something wrong with my ECU?
Golf/GTI VII :: Check Engine Light Came On - Code P0413
Was driving today, at a speed one could call "briskly", and the check engine light came on. The code is P0413...
View 3 RepliesGolf VI R :: Check Engine Light Came On / Code 2275
My check engine light came on today. I got Engine code 2275 from my P3 gauge but I can't find out what that code means.
View 6 RepliesGolf IV / Jetta IV :: Check Engine Light - P1426 Detected
Getting an emissions code. I deleted the emissions with the delete kit. Used the plug in resistors that came with the kit that is supposed to keep the cel off. Here's the code.
P1426 evap emission system purge control valve circuit open .
Golf IV / Jetta IV :: Bypassing Check Engine Light With A Resistor
So I heard from a friend you can use a 330ohm 10w resistor to bypass a check engine light cause from deleting the evap and SAI? I have an 03 gti 1.8t
The buddy that told me drives an 01 gti vr6. He wired the resistor to the evap sensor and it cleared the evap code but now Has a code for the SAI. Any information on how to do this to my car successfully (1.8t)?
Golf IV / Jetta IV :: 2001 Mk4 - Check Engine Light Flashing
So my gf's check engine light on her 01 Golf flashes once in a while, and it misfires. But the thing is, it doesn't stay on, and it's once in a while (like once or twice a week). She has new spark plugs, and new wires. I have a feeling it's the coil pack, but I really don't know if it needs to be replaced until the check engine light actually stays on.
View 14 RepliesGolf IV / Jetta IV :: 2001 GTI VR6 - Check Engine Light Flashing
Just a few days ago I was driving and I noticed as I went over 35 mph my car would stutter and the check engine light would start flashing. And when I slowed back down the car drove fine. I'm wondering what the problem could be? Feels like the car is losing power. Car is currently at 119k miles.
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