GTI 337/20th Anniversary :: Code P0501 / Compressor And Large Radiator Fan Quit Working
Jun 24, 2012
I have an issue with my speedo. I keep getting the p0501(which comes and goes). I have replaced the VSS, CKP sensor, and I even have had my ECU replaced. Problem is the speedo works sporadically. It will work then it will stop. It will bounce around while driving then stop. Is this a cluster or issue?
I also noticed today that my fuel gauge was not being accurate it as well. It would drop then rise. My tach and temp gauge work fine as I used the tach to gauge my speed. I really would like to know what is going on.
Also, my compressor quit working and my large radiator fan quit working. I replace the FCM, but that didn't change anything. Driving with out air in the south is not fun.
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My car (jetta 2002 1.8t) have the error code p0501 even if the speedo is working. I replaced the speed sensor just to make sure.
If I erase the code, and drive no matter how far/fast I go, the check light doesn't turns on. But as soon as I turn of the car and drive again it does comes on.
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So I have a 2005 gli here is what's going on. The ac compressor is not engaging, the reticulation button is not lighting up when pressed in, the cruise control is not coming on and the daytime running lights are not turning off when the hand brake is engaged. And the radiator cooling fans to not spin when the engine is first started. I have checked all the fuses inside and over the battery. I have checked the relays ( they click when hooked up to power). I'm suspecting a bad fan control module. I've done some searching and that's the only thing I have found that would control the fans and the ac.
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So basically a couple months ago I picked up a 03 20th and GTI, I love the thing to pieces, recently I've got into drive it and I can watch my temp gauge steadily climb to 90 and stop. (before I go any further, I haven't gotten any overheat warnings or anything like that, I've just noticed my car is really hot all the time and the temp gauge goes to 90 within a minute or so of driving but doesn't go over). heat works fine, I've gone in the engine and tested a few things, tested the fans by jumping the connections, my large fan is dead but the small works fine. to my understanding, the large fan isn't used much unless it's really hot anyway. so I removed it and continued trying to find my problem, I felt the rad after letting the car run for a bit, the top half was hot but the bottom half was cool, took the hoses off and flushed my rad thinking maybe something was clogging it, water ran through fine, so I put it back together, put new coolant and tried again. same thing. so I took it for a rip and came back, obviously, the top hose and the rad were hot, but the bottom one was kinda warm. I looked for answers online but I can't seem to find anything like what I'm dealing with. the water pump seems to be working fine, I'm not sure how much flow is supposed to be coming through the Small hose at the top of the reservoir, But I checked it and it has a steady stream coming out of it. I've worked all the air out of the lines as well. The car isn't overheating and doesn't really pass the 90 mark, fans almost never come on but the small one kicks into low when I turn the AC on. which as far as I'm aware is what's supposed to happen.
The car feels like its running hot, checked everything I can think of. rad is hot on the top half and cools at the bottom, coolant has a steady flow back to the reservoir. no actual overheat warnings, I'm just wondering if these cars run hot normally or if I should be concerned.
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My 03 Expedition A/C quit working, the compressor was cycling on and off so I took it in to be recharged thinking it was low. They said was completely out and it took 3.5lbs to recharge although they couldn't find any signs of leaking. When they recharged it they put more dye in to find the leak, the technician said he suspected a compressor since it was completely empty and had been working in the spring.
I was hoping it was a compressor as I have changed one before on my 97 Expedition and am pretty comfortable with it, however I can't see any thing leaking using a UV light. I have checked the compressor and every line I can see all the way back to the rear (it has rear air). When they recharged it worked very good for about 8 days on the 9th day it was working and went from blowing cold to hot instantly. Where or what to look for??
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Ever since the air cond compressor Burned up I replaced it now the keyless entry quit working along with the radio really every thing quit till I put the key in the ignition and once the key is in the ignition the radio still doesn't work.
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What is the factory AWP 20th AE boost pressure?
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I have Unitronics Stage 2, and a 3" downpipe... I keep getting a CEL P0420. I know its about the second o2 sensor, but I don't understand why I am getting the CEL with my chip? Could it be possible that when I put the downpipe back in i reversed the 2 sensors? Or are they the same...
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I was driving home and noticed that it seemed harder to shove the gear shift into 1st gear. I stopped on the way home and discovered that I couldn't put the car into reverse, when I tried, and then started to drop the clutch and go in reverse, it was as if the car was locked into both reverse and a forward gear, the engine would bog and the car wouldn't budge.
I popped the hood and checked the shift rods and they looked OK, no obstructions or broken parts. I played with the gears for a bit and finally reverse gear suddenly started working again, but now 1st and 2nd gear are gone! it does not feel as if it's engaging the gears at all, the lever moves free. No different than having it in neutral. 3rd gear and above all still work OK, so I had to use 3rd gear to get the car moving.
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So i have a 2004.5 gli 6spd that had two of the coils go bad and had a serious misfire with engine code and all car didnt want to even move. So i got this fixed made it about a mile down the road and it had a cylinder 3 misfire took it back had third coil replaced and all new plugs put it. Got the car back it ran fine until i hit about 4000 rpm under heavy boost it misfires but no flashing cel like before and the car still runs but cold start warmed up it misfires under boost
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Ever since ive owned my 337 its always been a pain to keep my cel off but i got a pocket scanner and found that the code is coming up for a bad ECM !!! i called around and the cheapest i found was 1200.
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I have an 04 GLI and keeps throwing a code for the 02 sensor, and after putting the car on the lift, and disconnecting the 02 sensor harness, a fine oil leaks out at the end of the connector and smells and looks like power steering fluid.
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Car is throwing Converter below threshold code. I figured i would put in MagnaFlow High-Flow cat from my work but didnt know if that would work. The position of the stock 02 sensor is what baffles me.
It seems to me the factory design has the 02 sensor in between 2 chambers. Could I just install this Magnaflow cat and put the 02 sensor after the cat? Can get rid of this code after installing high-flow cat?
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whats the engine code for the 04.5 gli 1.8t???
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I am getting a p0501 code (off my code reader) on my 2001 Elantra. I have already replaced the Speed sensor on top of the transaxle under the air filter. Driving into work today check engine light came back on and took to AutoZone. They are getting a P0501 code Sensor "A". They had no idea which sensor, sensor "A" was. I know there are 4 sensors on this car and have searched for other posts with no luck, all say replace speed sensor. Need to get this done to pass emissions.
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I've got a 20th and the backlighting on sunroof control is not lit. I haven't really checked fuses or anything yet, I plan on doing that tomorrow when it's light out.
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So the car will only start to raise in temp over the mid (which is about 190f not sure exactly) when the car is at a stoplight for a good amount of time or the car is at idol, really whenever the car has no air being sucked in through the front it really only goes over temp slightly at a stop because the fans are not cooling it
Also it has been 80 degrees plus here for awhile. It never over heats entirely but I am looking for possibly causes here is a list below of what I think it could be :
Fuses
Fan relay
Thermostat
Or fan control module
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So my girlfriend drives my car to work and today she called me and said that the instrument panel isn't working. No gas gauge, odometer, tach, or anything!
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For some reason BOTH my sidemarkers stopped working. Would it be a fuse? if so, which fuse would it be? fuse map in fuse box doesn't show sidemarkers.
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I am getting really irritated with my ac control lights not working. my friend with a gti has the same issue. but we have both changed out the whole piece from a working car and still no lights. i checked my fuses and nothing blown missing 2 fuses (pic card shows KEYS) my lights have been out for over 2 years. some days I don't care but now its really on my last nerve. The last time i remembered they didn't work then one day they did another day.
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Today I was driving getting on the highway while having the clutch engaged I went to shift into third and it was very hard to get it into gear. For the rest of the day today this was a problem and especially at higher rpm. I am pretty sure my clutch is going. I asked around local and they say it is the clutch. Do I need to also replace my flywheel or can I just use my old one?
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