Golf IV / Jetta IV :: EPC Light Came On - Codes P0221 And P2637


Sep 22, 2014

I bought my son a 2005 GTI MkIV (great dad right). On the drive home it threw a light the code was P4011 secondary air no prob found a hose off and issue solved. The car had 66k so I made him leave it at home until the timing belt was changed (read about alot of failures between 60 and 80k). Everything was great for 2 weeks last Thursday the EPC light came on and he got it home in limp mode. I pulled the following codes P0221 and P2637.

Am I looking for a short? I have read that it has been the following.

Brake light switch

Gas pedal

MAF

Intake manifold...

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Golf IV / Jetta IV :: CEL Is On Throwing 3 Codes - P0171 / P2637 And P0420

What I need to do to fix these codes

p0171 system too lean bank 1

p2637 torque management

p0420 ...

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Golf IV / Jetta IV :: Light Comes On Throwing The Codes

I recently had an issue with a coolant leak. the Y shaped coolant line connection went bad located under the power steering reservoir. The car got hot and the coolant light came on i immediately turned the car off and saw coolant leaking out from this.

Now today I start my car it has a rough idle and dies once it dies it doesn't start again and the epic light comes on throwing the codes

17579 P1171 Throttle Actuation Potentiometer Sign.2 Range/Performance

17951 P1543 Throttle Actuation Potentiometer Signal too Low

16497 P0113 Intake Air Temp.Circ High Input

17987 P1579 Idle Speed Contr.Throttle Pos. Adaptation not started

17953 P1545 Throttle Pos.Contr Malfunction

17976 P1568 Idle Speed Contr.Throttle Pos. mechanical Malfunction

18012 P1604 Internal Control Module Driver Error

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Golf IV / Jetta IV :: ASR Light Came On / Running Rough And Smoking With Codes

I was driving along the highway cruising at around 100 km/h when out of nowhere the car started driving a little rough so I look down and the ASR (traction control) light was on. I got off the highway, shut it down and fired it back up. The ASR light was off and car running like normal. When I got home I scanned it and these codes came up:

The catalyst code if from my catless turbo-back exhaust which I plan to fix next month with a tune. Anyway I cleared all codes and continued on my way without any other hiccups. So is my MAF sensor dying/dirty? ECU? N75 valve? Boost leak? I'm making a boost leak tester today just to 100% eliminate that variable, though I'm fairly certain I'm good there.

The car is mostly stock except for a few bolt-ons, all of which I've had installed for thousands of kilometers now. Here is what isn't stock, not including suspension, wheels, etc:

Forge 008 diverter valve

034 Motorsports PVC silicone hose kit

Samco boost hose kit

Forge silicone turbo inlet pipe

Eurojet SMIC

custom built 2.5 stainless, catless turbo back

AEM Dryflo short ram intake

GLI MFA cluster

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Golf IV / Jetta IV :: 2000 - Engine Light And Codes That State Misfire On 1 And 4

My daughter's 2000 Jetta with a 2L has an engine light and codes that state Misfire on 1 and 4. It is intermittent as it only misfires once in a while.. She is in Rolla MO, and I am in Detroit MI. A couple of years ago the car died when she was home and I found a swollen/cracked coil pack. I replaced it with an aftermarket. The plugs and wires were replaced about 30k ago with OEM parts. I am tempted to have the son in-law replace the coil pack with a Bosch unit.

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Golf IV / Jetta IV :: Check Engine Light With Error Codes 17748, P1340

I'm having some problems with my 05 1.8T GTI. I've had a check engine light for about 3 months and finally got a diagnostic tool (VAG V-checker). Right now I have one code 17748.P1340 Camshaft position sensor-G40/engine speed sensor -G28: incorrect allocation.

I researched a little bit and talked with some of the guys at the local VW dealership. From what I learned this could be related to (obviously) faulty camshaft position sensor and/or faulty engine speed sensor. So I've replaced both of these sensors and even cleaned the Mass Airflow sensor.

I cleared the code and after driving about 5 minutes the code came back. Also I recently had a P0300 and P0304 cylinder 4 misfire default code. So I've changed all of the ignition coils too since I heard they were recalled a while back.

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Golf IV / Jetta IV :: 2004 - Multiple Fault Codes / Random ASR Light Coming On

The vehicle is a 2004 Jetta MK4 1.8t.

Last thing I had replaced about 2 months ago was the Solenoid valve, the MAF and Solenoid hose. Car ran fine for about a month, and bam...engine light came back on, along with the ASR light. At first it was saying "cat converter" so I researched that, and what a surprise, it spoke about being a $1k piece to replace. NOTHING HAS BEEN CHEAP ON THIS CAR, and I'm losing my mind.

The latest adventure happened today coming back from the gym. Car started jerking (which has been normal since every now and then the ASR light will come on, which I'm told is the traction control light. Causing the car to jerk. Simple fix is pulling over, shutting the car off, and turning it back on. That always clears it, and then I'm back on the road.) but instantly it lost power. It wont shift, but the traction control light didn't come on. I plugged my OBD2 tool up, and came back with these fault codes:

P0420: Catalyst System Efficiency Below Threshold (Bank 1)

P0753: Shift Solenoid "A" Electrical

P2637: Torque Management Feedback Signal A

I'm going to go to these guys tomorrow, but I would just like to get an educated guess on what might be going on, so I don't look like a lost dog while they're figuring out what to do next. These guys seem knowledgeable, but they're missing something since I've been in and out of their shop several times and still getting my traction control light on at random times, and now all 3 of these codes.

Does that Solenoid code have anything to do with the Solenoid valve they put in? I was told that cleaning the throttle body and the cat converter might work. Would those be cheaper options to consider, and see if that works?

I also read that unplugging the alternator and plugging it back in, then cleaning the male and female with electrical cleaner might work. I was told about a month ago that my battery barely passed. Could this be causing any of my issues? I also did a log while I was driving, but all that's showing up is a google map document.

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Golf IV / Jetta IV :: Check Engine Light With Codes 16804 , 17511, 17748, 16524

My check engine light recently turned on but I don't know what the codes mean. The codes are:

16804

17511

17748

16524

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Golf IV / Jetta IV :: 2000 GLS VR6 12v Codes Won't Go Away

Okay I have a 2000 Jetta GLS VR6. I had the engine replaced after i found out the block was cracked when replacing the heater core. ever since it was replaced the car runs great but it keeps throwing these 4 codes.

p1424 secondary air injection system bank 1 leak detected -intermittent

p0411 secondary air injection system incorrect flow detected

p1603 internal control module failed self test -intermittent

p0134 02 sensor bank 1 sensor no1 no activity -intermittent

The thing that is bugging me is that the sai pump is still running. On cold start it literally sounds like a Dyson vacuum. What i should try.

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Golf IV / Jetta IV :: 2001 1.8t - Two Different Engine Codes

I have a 2001 1.8t beetle and doing some research to buy parts I came across two different engine codes. My trunk says I have a AWV engine but the cylinder head says AWM. This is really confusing as looking them up I get three entirely different options for this car.

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Golf IV / Jetta IV :: 04 - Idling Pitfall With Codes

My gf's 04 gti 1.8t 5spd is having idling issues. Here's the rundown, at idle it sits at 800 rpm but when given a rev it then becomes erratic and fluctuates between 500-1100 rpm. When throttled again lightly it returns to normal 800 rpm idle. The car will try to stall a little bit. Now for the codes and lights. The lights are the traction control light and the check engine light. The codes are p0102 (MAF) and p2181 (coolant system performance). I have recently had a misfire which I took care of with 4 new coil packs. I kept the 3 good ones I took out. I have to change the plugs still but don't think it's an issue. Has new clutch and sits at 148,852 miles.

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Golf IV / Jetta IV :: 1.8t Won't Start / Throwing 2 Codes

Throwing 2 codes -

P0172: too rich
P1176: post cat 02 reached limit

Last time it turned on it had horrible air flow, it felt as though it was choking. definitely not a misfire. occasionally after spirited driving the engine would die after I came to a complete stop then worsened to cutting off when I put the clutch in at high rpms. also have a slight loss of power. I also recently added a 3" tbe and changed coil packs.

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Golf IV / Jetta IV :: Car Is Showing Codes For O2 Sensors

This isnt my first vw but its my first vr6, its a 2000 gti glx, only showing codes for o2 sensors havent got a vag com yet only have a obd scanner. It idles fine and runs smooth until i get over quarter throttle then it starts hesitating like there isnt enough fuel or air...i know that the noob owner i bought it from cheaply put exhaust on it and i didnt see any o2 sensors but ive never known a car to not run correctly without them.

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Golf IV / Jetta IV :: 2.0 Throwing Multiple Codes

So my car has been dropping multiple codes after I scanned her and found all five: p0303, p1128, p0172, p1300, p0301. She is just a simple five speed AEG and has no mods other than a SRI. I already replaced the MAF but that ended up causing more codes and I have checked the vacuum lines to no avail.

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Golf IV / Jetta IV :: 2000 - Got Transmission Codes?

i have a 2000 jetta 2.0 i am in desperate need of a new transmission. Ever since I bought the car I rarely had third gear and today on my way from southeastern PA to northwest Ohio seem to pretty much completely lost first unless I really slam it in and fifth likes to disengage every now and then unless I hold the shifter in place both first and fifth were slowly giving me problems until it got really bad after todays 8 hour drive. My transmission code is EBP, is there any other codes I can put in my car from another 2.0 or do I have to get another EBP?

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Golf 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.

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Golf IV / Jetta IV :: 1.8T - OBD Readiness Codes Won't Reset After PCV Repair

1.8T ... Failed smog test, then got PCV hoses repaired. Now I'm failing because the OBD readiness codes won't reset. I've driven over 100 miles and the shop that fixed it said to "just keep driving it" but that they have no other solution to get those codes to reset. Any tips to those codes to ready?

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Golf IV / Jetta IV :: CEL Is On With Codes P0785, P0411 And P1151

Alright I might have made a major mistake and I need some input; I just recent bought a 2001 Jetta VR6 131k on it and at first I didn't notice so much but since I've gotten. To drive it more I've noticed it's really sluggish on take off and doesn't seem to shift into 4th gear. Also I started noticing a faint rattling noise. And the CEL is on with the codes P0785, P0411 and P1151.

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Golf IV / Jetta IV :: 1.8t Throwing Codes And Misfire - CEL Came On And Blinks

So recently I took my engine apart to do a valve cover gasket and Ecs tuning 2.0 coil conversion. I noticed a good amount of oil in the plug tubes so I got out my trusty soap dispenser and started pumping out oil. Pulled plugs and cleaned them (wanted to make sure oil was all out b4 getting new) also while I had it apart I wanted to take intake off, ( just to polish it and clean out any carbon inside).. Well I never ended up doing that. I removed the injector connections and realized it was to much work for such little satisfaction. So I plugged the injectors back in.

I got my car all back together and now I'm throwing 6 cel codes!! P0102 (maf) which I'm assuming b.c I took it off for so long, p0201, p0202 ( injector 1 and 2 miss), then some misfire codes p0300 (random) p0301 (cylinder 1) and p0304 (cylinder 4). The car starts runs very rough then cel comes on and blinks. I was thinking maybe the oil getting down to the combustion chamber couldn't be the best for it but it would just burn off. Only other thing I did was take off the thottle body and cleaned it.

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Golf IV / Jetta IV :: Codes P0238 And P0106 - Car Is Not Boosting

My car is not boosting. I had two codes p0238 and p0106...

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Golf IV / Jetta IV :: Getting Multiple Codes After New Trans Installed

I finished installing an auto out of a 1999 beetle into my 2000 golf. I used the beetle TCM now it wont shift out of 3rd. If I manually start in first it will shift up to 3rd but nothing past 3rd. I had it scanned with a generic scanner and these are the codes. P1780, P1783, P0725. I researched the heck out of this and I'm not sure what to do. Do I need to take it and have a vag com hooked up to make sure the ecm and the new tcm are talking? It seems others have had these issues and I thought it might be solenoids but that's not what's coming up.

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