2004 Chevy Colorado P0506 and P1133

2004 CHEVROLET COLORADO
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CKEITHUK
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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?
Aug 10, 2010 at 12:59 AM
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BIGJOE1986
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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
Aug 25, 2010 at 11:33 AM
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