THE CODE READER GIVES A P0171 BLANK ON BAY1 CODE...

2001 Saturn L100

Tiny

Tor_saturn_L100

February, 14, 2013 AT 7:24 PM

The code reader gives a P0171 (blank on Bay1) code and both the AC and rad fans switch on, the car is running very high on gas and a black smoke, all started after it was in the workshop and the mechanic welded the exhaust manifold (that had a small crack). Already changed the temperature gauge and the FCM and no change. Please advise where to start, Can it be a bad sensor causing the problem?

1 Answer

Tiny

saturntech9

February, 15, 2013 AT 3:06 AM

You have the 4cyl engine?The first thing I would do is check for a vacuum leak.

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