What is your question?
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What is your question?
When the weather starts to get cool the "reduced engine power" shows on the dash and I have to stop and turn the engine off. After 30 to 60 seconds and a restart the engine runs fine but the check engine icon shows on the dash. Sometimes I have to do this 3 or 4 times. My dealer checked it and the code of P1516 was thrown. The problem is they told me it could be any of three things each costing $400 to $500. Two of the items were a TAC Module and a Throttle Body and the 3rd I forgot. The problem is that I dont mind spending the money but not knowing which item is the problem is like playing the lottery not knowing if I was going to win or not. Has anyone else run into this problem???
2 Replies
all the time. we recommend replacing the tac module, which is the pedal sensor as well, and the throttle body. it is expensive but does resolve the issue. Roy
I have the same problem only mosely when the wether get warm dealer sat tps went thru 3 of them now ijust clean them work good for a few day
Do you know if GM has any service bullitens out on this problem and how do you feel about after market parts that are a lot cheaper than getting them from a GM dealer????
there are TSB on it but that is not a free service just awareness. the only ones I use are ac Delco. do not trust aftermarkets. Roy