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supercoupe91

07-13-2007 01:33 PM

Need help, have codes

P0135
P0171

My car has an exhaust leak, sounds like under the motor, and my MIL light is on permanently but not flashing. The car has a significant loss of power....

tfische12

07-13-2007 03:42 PM

RE: Need help, have codes

16519 P0135 O2 Sensor Heater Circ.,Bank1-Sensor1 Malfunction
16555 P0171 Fuel Trim,Bank1 System too LeanStart with the precat O2 sensor, and find the leak.

What engine and year?

supercoupe91

07-13-2007 06:20 PM

RE: Need help, have codes

2001 1.8T

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