I have 01 passat, it runs fine, except check engine light is on. When I turn AC on the engine beginnings to work funny, RPMs jumping up and down, feel like engine doesn't get enough air (or gets too much). I was told to replace ignition coils. I replaced them all but the problem didn't go away. Even actually one of the coils pups up a little bit all the time.
View 1 RepliesHow can i turn off check engine light (hyundai santa fe 2003 3.5) by fuse ? I do not have any code scanner.
View 10 RepliesCheck engine light came on after a car wash yesterday. I'm sure there is nothing wrong with the car and i recently had an oil change done. i use full synthetic oil too and always get it done on time. Is there a way for me to clear the engine light myself?
View 8 RepliesI have a 2001 forester. it had a misfire which has been fixed but I can't get the "check engine" light to turn off.
View 3 RepliesI have had a check engine light on in my car for a while now. I am pretty sure that it deals with the disconnection of the vacuum servo that controls the intake manifold's flaps that designate which track the air takes through the manifold. It has been running fine like this for a while under the assumption that because the performance of the vehicle hasn't changed, there is no need for immediate repair.
Here is my new problem which I am trying to determine if it has to do with the above issue. Over the past few days my car has been giving me EPC and ASR lights along with switching to back-up power. I have been on expressways driving 80, i have been going around corners doing less than 20, and it has happened everywhere in between. Keep in mind that when it happens i slip my car into neutral, pull over, and reboot. After that everything is fine for a short while. I stopped at Auto Zone to get a diagnostic, and for some reason, which i did not feel like questioning due to the way the autozone employee was mentally equipped, they did not give me codes, but descriptions.
(1) Camshaft Positioning Sensor Fault A Bank 1
(2) Camshaft Positioning Sensor Fault A Bank 2
(3) PCM Processor Fault
(4) Running too lean on Bank 1
(5) Running too lean on bank 2.
These are the descriptions for the 5 fault codes. I am planning on stopping back today and getting the proper codes. But would like to get some opinions in the mean time. I've check fuses and relays pertaining to this issue and all have tested ok. Nothing is leaking from my engine and nothing is visibly damaged, except for the vacuum servo arm which is broken (see above paragraph). I feel like the issue is with the ECM (PCM, PCM, ECU, whatever).
Another interesting thing is that when i operate my car using the cruise control, there are no issues what so ever. Possibly an issue with the throttle or its many components?
Recently I bought an 01 Passat with a V6. Intermittently, when I go to start it, it cranks and cranks and doesn't catch. When this happens, the EPC and check engine light come on.
Other than that it is a fine car, I'm the second owner, and it was thoroughly maintained at VW dealerships and specialist. Recently there was a new oil pan and starter put in (w/in a month--previous owners).
Recently I changed the spark plug and I made a mistake crossing the spark plug wires. here I noticed that the check engine warning don't turn on.
Also I had other problem with idle air valve and also the check engine warning don't turn on.
The light is working fine because when I acct the key it is turning on. The problem is detecting a fail it don't turning on.
My friend has a 1996 or 1997 Pontiac Bonneville with over 130K miles on it and its been in her family for several years and she says the "Check Engine" light on it has never turned off. She's taken it to different shops to have it looked at and none of them can tell her what's wrong with it. As far as she can tell, the car runs fine, she keeps up with the service on it but I wonder what would be causing this? I once owned a 1999 Chevy Malibu with the V-6 3.1 liter engine and I had the same thing happen to me but when I had it serviced, the mechanic hooked a little code reading device to it and turns out the spark plugs were misfiring so he changed the coil pack in it....problem solved. So obviously my friend is having issues with fuel emissions system in it but I wonder why the mechanics in the City she lives in can't seem to figure out the problem. Not saying her car has the same problem my old malibu once had, there's a number of reasons why that light turns on and from what I've learned it usually involves the fuel emissions system in it. So what could be wrong with it?
View 4 RepliesToday the CEL on my 2010 HB with 30,000km came on and the car ran rough like it had a bad spark plug. I went straight home and luckily had a set on hand and replaced them. Car now runs like before but the CEL is still on.
View 8 RepliesI haven't checked the fuse yet so it may just be that. The inspection guy thought that it might be the seller "unhooked" it. How I might look further into this? Where would it be "unhooked" from?
View 1 RepliesWhile I am driving the car it will start to die and skip. Happens randomly. Today I was driving up a small hill and it went quits on me started lurching with check engine light coming on and off. The car will turn over and start, but only for a few seconds before dying again.
Seems to happen when the car is running for a while. Also the ABS light flashes on then off randomly while driving sometimes although It hasn't been an issue. Will be checking tomorrow to see if it starts.
I have 2000 Pontiac Grand AM V6 3.4 liter. The check engine light came on and when I used the computer to see what's the problem, it gave me code PO412 which is air pump. The light turned off, but when I turned my car back ON, the light came again. Where the air pump is located in 2000 Pontiac Grand AM ?
When I hit the gas, the RPM goes all the way up and looks like it wont change the gear. The car is really lazy and I hope the air pump is the problem to fix this ?
I have a BMW 740I that has over 200,000 miles on the clock, I have noticed in the past couple of day that the check engine light when I turn on the ignition that it flashes then becomes still, what the problem could be, and if it is safe to drive?
View 9 Replies2004 Ford Focus, 2 Liter Zetec engine.0. Situation: Car initially running well but want to improve mileage, so I installed premium plugs.1. Ran roughly on test run, so headed home. Check Engine light came on before fully warmed up.2. Found and corrected loose plug wire.3. Engine now purrs like a kitten, but Check Engine light stays on.
What should I do now?
I have a 2002 Forester I have take it to 4 shops and each shop tells me something different. First 2 say to take it to the dealer and have them flash the computer. The dealer says that it is a faulty drain valve and the fourth states he has never heard of a drain valve. Hook up to a scanner and can not clear light. Unhooked battery for 30 minutes light was off for a minute but came back on. Getting extremely frustrated!
View 11 RepliesI have a 2000 1.8t and I was on my way home from work, sitting at a traffic light and my rpms went up to 1200-1500 and then my check engine light came on.
View 7 RepliesI bought a 2005 Camry 4cyl yesterday and realized today that the check engine light was not coming on when turning the ignition on. I put my dtc tool on the car and got these codes. Getting P0300 ,P0303, p0304 & p0012 . Not sure where to start looking.
View 4 RepliesI have a 2003 Prius that I absolutely love! I have just under 82,000 miles and it only had approximately 95 miles on it when I leased it in Feb. 2003. (I'll never lease again!) So, when the lease matured, I didn't want to part with it and the car's been basically problem free. Just the standard oil changes, tire rotation, replacing tires.
On Friday, June 3rd, my check engine light went on, I immediately pulled over, checked the dipstick, but all was well. I drove carefully/slowly home since according to the manual it states, "take to dealer."
On Monday, June 6th, I took it to the dealer and paid $110 for a diagnostic fee and was told: "You have a malfunctioning sensor in the tailpipe which is stuck in the open position and it will cost $1500 to replace, wish I had better news for you." I asked what would happen, would I still be able to drive home, would the engine blow up, etc. All the service manager said was, "Well, it will affect the performance of the car and the gas mileage."
As of Friday, June 10th, miraculously the check engine light went off by itself and has not come back on. AND it has NOT affected my gas mileage, I'm getting anywhere between 48-50 mpg, which is what I usually get!
today my check engine light turned on. I opened the hood ( Not like I know anything about cars, but doesn't hurt to look for obvious stuff I guess) and there was a bubbling sound. I followed the sound to what I think is the inverter pump? It's like a tank smack dab in the middle and has a pretty thick tube coming out. The liquid inside looked to be bubbling or boiling. Is this normal? I've checked the gas cap and tightened it and restarted it so I don't think that's it. It's at about 160,000 miles.
View 13 RepliesMy check engine light has been on for 3 days i get my appointment with VW and then today i start it up and it goes off. Also, having a problem with very loud squeaking coming from the front bottom left of the engine ?
View 17 RepliesIf doing a EGR delete on a early 2004 6.0 will turn on the check engine light? I was going to leave the valve in place and harness connected, I was just looking to add durability to the truck so don't want to use a tuner but also don't want the engine light on, I seen conflicting reports that it may or may not turn on the light!
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