Loss of power dont know why?Need some help?

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10-31-2009, 10:25 PM

2000chevysilverado

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Loss of power dont know why?Need some help?

Well i wnt out tonigt to do some ricer smackdown and didnt see any so i raced a ls1 trans am had no problems keepin up but when it was all sayed and done i started to cruise around again but when i went half way down or full on the throttle didnt get any power like it should and drove home it could barely make it up the hills. So i check it with the code reader and all i had was o2 sensor crap but the check engine light wasnt even on. Sorry for the long story but anybody got some ideas

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10-31-2009, 11:36 PM

viciousknid

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maybe the o2's are bad. or something on the maf?

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11-01-2009, 12:51 AM

2000chevysilverado

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could be gonna let cool down overnight then see what it does

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11-01-2009, 07:29 AM

budhayes3

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What codes did you get? If you have a pending O2 sensor code, the sensor may be on it's way out and already giving the PCM false info, but not tripping the light yet. That would cause a loss of power...