Mechanics

CHEVY P0506 AND P1133

2004 Chevrolet Colorado

Computer problem
2004 Chevy Colorado 4 cyl Two Wheel Drive Automatic

My engine lite is on and when I do a diagnostic test P0506 and P1133 are the codes that come up. Can you tell me what they mean?
Avatar
Ckeithuk
August 10, 2010.




P0506
This means low engine speed and probable causes could be: 1. Vacuum leak on engine.
2. Dirty throttle body.
3. IAC motor defective
4. Poor electrical connection to the IAC valve

P1133
A/F Sensor Circuit Response Malfunction!

Oxygen sensor bank one sensor one slow response or at limit

Tiny
Bigjoe1986
Aug 25, 2010.


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