Bought car brand new. The check engine light is distracting and worrisome. Had it to different places to see what could be done and one place even said have catalytic converter replaced.....not going to happen due to high cost.... Also the original engine finally quit/died so bought another engine, and lo and behold, within 10 miles of replacement and being back on the road...the engine light came on and stayed on ever since!!!

GM says they are cleaning up their recalls and fixing the problem reputation after appearing before Congress but I really wonder why they haven't bothered to take care of this...No more GM products for our family....

Got the car in 2004. In 2009 the check engine light came on, went to 3 mechanics to try and find the problem. None of them had a clear idea of what was wrong but they tried various things. It still never went off for more than 5 miles directly after servicing. For a while it was driving fine even though the light was on (over a year) but then it started deteriorating. It was very sluggish, did not drive well (shaking) when going over 35mph, and the check engine light started blinking for 5-15 seconds when I accelerated. MPG tanked, went from 35+ to 23-25. Needless to say, I took it to another mechanic. They replaced the spark plugs and fuel injectors and the catalytic converter ($1300 fix on my then 10 year old car). It ran well once they did that, MPG slowly climbed higher like it was before, but after about 3 days the check engine light came back on. The mechanic was stumped, he had no idea why. He OK'd it for me to drive so I've been driving it since (still driving fine more or less) but the light is still on.

Check engine light came on soon after I bought the car used. It was covered under warranty, so the dealer replaced the O2 sensor. Light came back on a couple weeks later. Took it back to the dealer, they replaced the mass airflow sensor. The light came on again about 1 month after that, but the warranty was expired. I then took it to a Toyota dealership & they said that the EVAP valves were toast. So they replaced the EVAP valves for $300. That worked for about 4 months. Then, presto! Check engine light back on.

The same codes were popping up (P440) (P441) & (P446). I had moved to another state, so I didn't bother taking it back to the dealership. I just drive with the light on now- I can't be bothered with trying to fix it anymore.

my check engine light was on about a year ago and engine had hesitation upon initial acceleration when cold (when gas pedal first pressed) and once in a while when at a stop sign and then pressed. Mechanic ran a diagnostic test on the check engine code and it came back stating the engine was running lean. He advised it was probably a sign that my fuel pump was starting to go out but hadn't gone out yet. He advised not replacing it until it completely fails as he said they are very expensive to replace on this model as they are located inside the gas tank so it involves a lot of labor (he gave me a $1000.00 ballpark estimate). He said as long as it hasn't been stalling and starts ok and drives ok generally to just keep driving it as-is until it actually goes out. He cleared the code and also ran some kind of smoke test (I don't remember what it was called) and for some reason the check engine light has not come back on since then - although the car still hesitates like it did before. I've also tried fuel injector cleaner a few times thinking maybe the fuel injectors were semi-clogged but that didn't seem to help. It never stalls and always starts (and has never broken down) so I just keep driving it as-is :)