Audi code HELP!
#1
Audi code HELP!
My buddy has an 01 A6 with the 4.2 in it. He is currently getting these codes:
P0101 - Mass or Volume Air Flow Circuit - Range/Performance A
P0130 - O2 Sensor Circuit - Malfunction (Bank 1 Sensor 1) A (o2 sensor)
P0174 - Fuel Trim - System Lean (Bank 2) B P0150 - O2 Sensor Circuit - Malfunction (Bank 2 Sensor 1) A
It sounds like a MAF and a couple o2 sensors but I am not very familiar Audis. Any help is much appreciated!
P0101 - Mass or Volume Air Flow Circuit - Range/Performance A
P0130 - O2 Sensor Circuit - Malfunction (Bank 1 Sensor 1) A (o2 sensor)
P0174 - Fuel Trim - System Lean (Bank 2) B P0150 - O2 Sensor Circuit - Malfunction (Bank 2 Sensor 1) A
It sounds like a MAF and a couple o2 sensors but I am not very familiar Audis. Any help is much appreciated!
#2
You are correct. Mass air flow and an O2 sensors, the lean condition is most likely related to the MAF, but could also be a broken vacuum line.
Are the faults sporadic or hard faults?
Are the faults sporadic or hard faults?
#4
Sounds like his MAF sensor is going bad as well as 1 O2 sensor.
I would definitely bet that the MAF failing is causing it to lean out because the ECU is confused on what to do. As Tommy said it could also be a broken vacuum hose/fitting. I ran into this at one point but it was also causing mis-fires.
Did all the codes come back after the reset? Are these the only codes?
I would definitely bet that the MAF failing is causing it to lean out because the ECU is confused on what to do. As Tommy said it could also be a broken vacuum hose/fitting. I ran into this at one point but it was also causing mis-fires.
Did all the codes come back after the reset? Are these the only codes?
#5
I am not sure if all codes came back these were the only codes when he first read them. I appreciate all the help.
You think we should do the MAF then see if it comes back?
You think we should do the MAF then see if it comes back?
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