2006 grand prix engine light flashing

[shumway]

I have changed these two sensors more than once. I'll clear the codes, then after a few weeks I'll get the codes again. I have put in AC Delco & another brand. There wasn't a difference. I got the same codes. Any ideas? Thanks.

[ProTech]

You could have other symptoms that are setting the oxygen sensor codes, when it really isn't a sensor problem at all. A lean condition, or a rich condition can set the codes. A clogged catalytic converter can set the codes as well. There could also possibly be a wiring problem or even a faulty computer. If sensor replacement doesn't fix the issue, you have to start looking elsewhere for the problem.

[KCCoopwood]

i resently purchased a 2001 grand prix 3.8 GT, and since i had it I could not get the ODB read, code reader says broken link, what can i do without taking it to the dealer.

[carriedi]

first verify that your obd2 dlc has battery power on connector #16

[stevencotter]

Driving home I noticed my car started to run a little rough and a pond acceleration did not want to accelerate readily when I got home was idling very rough turn my car off nothing. Overheating next morning open my hood on inspection one of my engine mounts is broken don't know if thats the only problem engine light has been on for a while the engine light was flashing. Last night when I was accelerating when I know how to replace engine mount where it attaches to the engine is broken free also strangely when I would hit my brakes to stop last night coming home the engine light would stop flashing and go on solid.

[carriedi]

the engine mount should be a separate issue from your check engine light. You need to see what cylinder is misfiring. Pretty sure if you scan for codes you will have at least one cylinder misfiring.

When your check engine light comes on it's because there is something wrong. you car is telling you that you should check it out be fore you get stranded or damage something.

[DaniGTP2008]

I have a 99. Sound like I'm having the same problem as you. But haven't checked the mount yet. Glad I saw this so now I can check mine just in case
I have a hard pull to the right all the time no matter what. Didn't think about the mounts.
My check engine light is on all the time because we cut the catalytic converters off. 02 sensor and mass airflow codes come up when scanned. No other issues come up. Misses and runs rough after tune up even.