How do confirm the Throttle Body Asembly on my car?

Asked by Jun 24, 2015 at 07:24 PM about the 2007 Chevrolet Cobalt 2 Dr SS Coupe

Question type: Maintenance & Repair

Ok so I am having serious problems with my 2007 Chevy Cobalt. Its running so rough. So recently I went to serial mechanics and each one told me something different. I have wasted a ridiculous amount of money. So here's all that I recently had done still no luck: Mass Air Flow Sensor, Upstream O2 Oxygen Sensor, and Major Tune-Up. Today I changed the MAP Sensor, Throttle Body... it ran even worst. Please help i dont know what else what to do.

7 Answers

18,840

You may have one or two bad injectors first I would try putting in some fuel injector cleaner in gas tank maybe just dirty injectors.

95,235

Did any of them reset the ECM back to factory presets?You can do it yourself if you know the location of the systems main fuses, just remove them and wait at least a few minutes before putting them back in, you must make sure you have removed all of the ECM fuses or it won't reset. Then drive the vehicle as you normally would for about 20 minutes, that should finish the relearn cycle. Then put in some SeaFoam in the fuel tank.

fuel injector cleaner didnt do anything. :(

ok I dont think the ECM was reset. idk where it is but im going to look it up now lol and try it. Thanks

18,840

Sometimes it takes injector cleaner a little time to work. Would not hurt to take the vehicle out and hit the passing gear a few times. Be careful no speeding tickets.

the fuel injector was done by a mechanic last week but didnt change anything since last week.

3,955

I presume that along the way all these mechanics are scanning the engine and addressing the various codes that must be showing up... or are they?

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