Quote:
Originally Posted by 20GMC00
The codes are present. There were no codes pending. I cleared them lastnight, and this morning the 157 & 160 are back. The 1345 is not. It runs great. But it is only getting about 9 mpg. I though there was something going on with it because it has been using more and more gas. Is that a symptom with the 160? Thanks.
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Any time a sensor or vcm is not working right it can cause it to burn more gas.
A bad 02 sensor or wiring can cause full rich running.
Check it and wiring to it out and go from there and recheck after driving check camshaft retard seting and for code.
Good Luck and let us know how it goes.