OBD II code PO171
#1
#9
I cleaned the MAF with electronic contact cleaner and it seemed to help but it was still idling inconsistently. Over the weekend I replaced the crankcase vent system and checked and replaced several vacuum hoses. I found a crack/rot on the bottom side of the short hose(this short hose also has a hose coming off it that goes to the AIC valve) that connects the throttle body to the turbo pipe. After I put everything back together now I have code PO 103 (MAF curcuit voltage too high). The car is very sluggish and actually cuts out under load about mid range and stalls now. Could this crack hose cause this? Please advise.
Thanks
Thanks
#11
Well this thing started as a PO171 code and as it turned out after I replaced the intercooler hose to the throttle body, several vacuum hoses, and the crankcase vent system I think and hope I have solved that one. The car did much better after I replaced the cracked intercooler hose but still had severe stalling sometimes. I also had no codes.
I think I read if unplugging the MAF makes the car runs better then it is the MAF that needs replacing. Well it did that and it ran very good but would not idle very well and I also had PO102 MAF low input signal. I ended up cleaning the MAF sensor with electrical contact cleaner and it runs very good now. I will keep you posted if something else pops up.
Thanks for the help.
I think I read if unplugging the MAF makes the car runs better then it is the MAF that needs replacing. Well it did that and it ran very good but would not idle very well and I also had PO102 MAF low input signal. I ended up cleaning the MAF sensor with electrical contact cleaner and it runs very good now. I will keep you posted if something else pops up.
Thanks for the help.
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