BMW 330i 2003. "Check Engine" light has been on for months.No performance problems noticeable in the car.But no one can seem to figure out what's wrong.Can this be a computer issue?
View 3 RepliesHaving some issues with my 2003 Alero 4 cylinder. Upon start the entire engine shudders and the check engine light flashes. I have to turn it off and turn it on and it will stop most of the time. I've taken it in and the mechanics can't get it to reproduce the same issue for them. Just replaced all four plugs, boots, ignition coil.
View 1 RepliesI have a 2003 silverado 1500 4x4. The check engine was on along with the abs light. I went to advance and let them tell me what was going on. I don't know the specific code but it said the passenger front abs speed sensor was bad so I replaced it along with new brakes, rotors and calipers. Now the abs, check engine and red brake light is on. There is also a message telling me that the brakes need serviced. I went back to advance and let them tell me once again why those lights were on and it was still the passenger speed sensor bad. What could be going on with it? Before it was replaced the red light never came on but now it is.
View 10 RepliesI have a 2003 W8 and the check engine light came on today for the cam b sensor... The car has had no problems and drives fine, I do not quite get why all the sudden it is on, and before I bought the car, 2000 miles ago the cam sensor was replaced for inspection, and I drove it for 1000 miles, and now the mil is on and it is running a little ruff... Where exactly on the head is it located? which head would have cam b sensor? I really do not think it is bad again.
View 2 RepliesI have an '03 S60 - nonturbo with 239,000 miles. I've never had any performance problems with the car.
Here is the situation - The check engine light has gone on 3 times in about the last 2 months. It just happened for a fourth time today. Each time it's exactly, almost exactly the same distance from home, from a cold start on a hot day.
Same code each time. I don't remember what it was - something to do with the air mass meter - it was on the paperwork from the dealer that I can't find right now.
First time the code came on was two days after getting the air filter changed so I suspected they didn't assemble the air filter case properly. I brought it into the mechanic. They recommended pressure cleaning the throttle body and changing the air mass meter. I opted not to do it and they just reset the light.
Second time I remember putting oil and an oil additive in (Lukas oil) to top off the oil in the car before I left.
Brought it back to the dealer and when I spoke to the mechanic at the dealership.He said I could do the throttle body cleaning and change the meter, but that wasn't the problem. He warned of some sort of internal engine problem suggesting that an oil path from the top to the bottom of the engine is clogged and causing some sort of other ambiguous issue in the engine.
Btw according to the car computer it gets 31 miles to the gallon.
Third time- I topped the car off with oil (cheap 7-11 oil). I drove the same distance and the light went on.
The second two times the light went off on its own.
Fourth time just happened on a quick errand. Car had been sitting for about 3 hours since it last ran. When I ran it earlier today I didn't have the light come on.
I should note that several years ago (at about 180,000) the engine had some sort of check valve at the back of the engine replaced twice because it was whistling.(With the whistling the check engine light did not go on). The second time it was replaced they did an oil cleaning procedure that cleaned the oil path from the top to the bottom of the engine.
Is this really a devastating engine problem? What's going on?
I have about 75K on my 03 1.8t on started having the check engine light coming on in the last few months. The dealers diagnosis was that I wasn't tightening the gas cap enough but I don't believe that because I do at least 3-5 clicks when I close it. I'm a bit baffled. After the last time I filled up at the gas station, I noticed the cap was loose so I've ordered another cap thinking the last one has lost its ability to seal properly...
View 3 RepliesAbout month ago, the CHECK ENGINE, VSC, and VSC OFF lights came on in the dash of my '03 SC430 (~175k miles). Took it to the dealer and they read the codes; indicating a bad O2 sensor. They replaced it, and the lights went off. A few days later, the lights came back on. The lights remained ON until this past weekend.
On Sunday, i went to start the car in the morning and the thing wouldn't turn over. Turns out the battery was dead. The label indicated it was 5yrs old. So i bought a new battery. After installation, i noticed the error lights were no longer illuminated on the dash, but just figured it was due to the fact that the battery was disconnected during installation. But after driving it extensively since then, the lights have remained off.
Something else i've noticed since installing the new battery is the lack of the "rotten egg" smell from the exhaust. Before the change, i noticed a significant decrease in acceleration and the emissions smelled very bad. But for the past few days, i've noticed a dramatic increase in power and cleaner smelling emissions. Not sure if they're related...
Could the check engine lights have been the result of my battery dying? I'm not sure why they haven't come back on since the battery replacement. Nor a reason why i'm noticing improved performance and better smelling emissions.
I own a 2003 Camry LE. I went to Autozone to find out what the check enginge light was for and was given P0031. When the service person checked it out on the computer he said the probable causes were:
1) open or short circuit conditions
2) poor electrical connections
3) failed oxygen sensor
4) EFI relay fault.
I asked how it could be narrowed down and he said it I would have to get the car checked out.
I changed the spark plugs in my daughters 2003 camry, and now it is sputtering and and hesitating. is there a chance I put them in to tight? The check engine light is on, and it will start blinking for a few seconds and then stop blinking and remain on when the car gets up to speed. The car wasn't doing this before the sparkplug change.
View 9 RepliesI'm getting a P0128 code on my 2003 V4 Camry. Autozone diagnosis says it's either
a) coolant low level
b) sensor not working correctly
c) thermostat not working correctly.
As part of 90k mile check about 3500 miles ago, the mechanic replaced the coolant. I didn't check the coolant after he had replaced it but I just checked it today and it's about 1 inch below the full level. Is this normal coolant usage considering that it's been about 3500 miles and 3 months since it was last filled?If the coolant level is okay, then how do I figure out if it's the sensor/thermostat?
I recently bought a 2003 nissan maxima 134k and i bought it with the p0300 check engine light on a looked at the engine and though it was an air box problem because they had previously installed a K&n filter so I went to the junk yard and got a 2000 nissan maxima air box and new filter i changed the oil and checked the spark plugs they look new and the dates on the coils are 2012 and 2013 and still its misfiring. i bought it to a mechanic and he discovered a vacuum tank had previously broke and they glued back together so i replace that with a factory one today same problem still misfiring but it got better but now its a p0306 then i erased the code and p0304 came back i erased it then p0302 came back then i change the cam sensors, and the crankshaft sensor and now it get a p0300.
Symptoms:
*when sitting for a long time HARD TO START ( takes multiple cranks to start it ) but once i leave it off for short time like 30 min it starts right up no problem
* when stop at a stop light in drive i can feel small little explosions sounds like my car is beat boxing
*performance is strong good acceleration no problem on that i just don't want it misfiring
My daughter has a 2003 Passat Turbo. Two weeks ago it started to run like crap with a check engine light on. I pulled the codes and it said multiple misfires. My buddy owns his own shop and said bring it down. He pulled the plugs and the spark plug holes were filled with oil. He changed the valve cover gaskets and replaced the plugs. Still ran rough with low fuel pressure so he replace the fuel pump and injectors. Still runs rough, when he pulled the air intake off there was oil in it. Could this have happened do to the valve cover gasket? The codes still read misfires. He said the turbo was full of oil also. Could the turbo be bad causing it to run like crap? Can it be rebuilt? I really don't want to go to the dealer.
View 5 RepliesI have an accent 2003 1.6 dohc crank but not start !!! Who do not fire and no gas ... and the check engine light is off when I turn the key on... (I test the check engine light and it is not burn).
I change the engine control relay and this is not work... I have all the wiring diagram and I check wire by wire and I don't find anything...
My 2003 MC SS has been acting up, the check engine light starts flashing at me and the car starts shaking when I turn the AC/Heat on. I know nothing about cars and before I take this to a mechanic, what might be the issue, I do not want to go somewhere and get totally ripped off.
View 3 RepliesNeed to identify this part? I believe this part is causing my check engine light to continually come on, due to worn out connectors (I.e. Vacuum leak)!
View 8 RepliesI have a 1997 ford f 150 with a 4.2 ltr v6 the check engine light came on so i took it to autozone and had the code pulled. They told me that the o2 sensor bank2 sensor 1 which is before the converter had a slow response so i checked the wiring and bought the o2 sensor. They told me bank 2 is the passenger side but well i changed the1st sensor on the passenger side and reset the code and drove the truck about 130 miles . and the light came back on. After reading a few posts. I think they told me wrong is the drivers side bank 2 or is the passenger side bank 2 ...
View 14 RepliesIntermittently blinking check engine light in a 2003(?) Ford Escape. I received a call from my fiance, who's about 45 minutes into a two hour drive. On the interstate, her check engine light started blinking, so she pulls off the interstate to a gas station (the light was blinking for maybe five minutes before she could stop, according to her). After she was off the interstate, but before she had turned the engine off, the blinking stopped.
She called me, and I looked up and directed her to an AutoZone about a half mile from where she was. Told her to drive there, and have them to try to read any codes from the engine. She drives over, engine light stays off the entire time. They hook up the reader, and there aren't any codes. My question is, if the check engine light stops blinking, and there aren't any codes for the reader, is the car safe to drive, or will she destroy the cat if she keeps going? Also, it's raining, if that matters for any reason.
My wife has a problem with the check engine light coming on and staying on. The dealer has replaced the fuel pump twice (which they say is the problem) but it keeps happening.
View 4 RepliesMy wife and I recently bought a 2003 Pontiac Vibe, a Toyota Matrix with slightly different skin, and shortly after we got a check engine light. When I inspected the car before purchase I noticed that there was black soot in the exhaust pipe. The owner told me that he'd put a cat back exhaust but I suspected I'd probably be replacing the O2 sensors soon and we negotiated the price accordingly. So now it's a month later and I bought an OBD II checker. I followed the instructions and after the checker and the cars ECU linked it showed no stored codes. I turned off the CEL and we went shopping. Mid way on the drive home, we live out in the country, the CEL came on again. Went through the procedure again, still no codes stored. I've read the instruction manual twice and I don't think I'm doing anything wrong. Is it possible to have a check engine light on and there to be no codes stored for the OBD tester to find? I could have bought many rolls of black tape for what the tester cost and I kept the receipt just in case.
View 5 RepliesMy 2003 Honda Accord with 101,000 miles started hesitating on acceleration, and a day later my check engine light came on. I went to the auto parts store to borrow one of their diagnostic computers. The code I received for the engine light was from my O2 sensor. What can cause the hesitation and the O2 sensor to read faulty? I have had several O2 sensors go out on other vehicles, but that hasn’t caused any other symptoms before. I would like it to be that simple, seeing as how easy they are to replace, but I don’t want to get my hopes up. Anyway, the car is parked now and I am taking the bus because I can’t afford to take it to a mechanic. I don’t want to waste any money by starting to replace things without having better direction.
View 11 RepliesOk I just bought a used 2003 Ford Focus from a dealership which I am financing and after the second day driving the check engine light came on. Once I saw that I took it back to the dealer and he told me the sensor was very sensitive and because I didn't close the gas tank tightly the light came on. I didn't feel satisfied with this answer so I took the car for a diagnostic. They informed me that the car had a gasket leak. I then took the car back to the dealership and told them what I had been informed and the mechanic told me that it wasn't a big deal, nothing for me to worry about. Now I don't know much about cars and I have been doing a little research of my own and a gasket leak seems to be a big problem.
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