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Old 09-20-2015, 12:10 AM   #1
740isport
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Join Date: Jan 2012
Location: SF Bay Area
Posts: 315
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Default P1174 and idle issue

Need a bit of help. Getting a persistent P1174 code and have checked for vacuum leaks replaced SAP plastic crossover pipe that goes from SAP pump to the valve. Cleaned IACV and it moves as freely as it should but I failed smog for a pending P1174 fault. I also have new OEM o2 sensors. So at this point I'm pretty sure it's the CVV. Thus I'll replace that when the replacement arrives.

However, my other issue is the idle, when warm it's close to 1,000 rim at idle and not the normal 700 to 800. But it eventually drops down most of the time but so slow it's bothersome. Was also thinking that could add to the P1174 returning now and again.

Any thoughts on how to resolve all this on my 97 ti?

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