Need help with these codes...
Codes are
P0106:
Vehicle has one or more of these components. Engine load or the AIR volume entering the engine is measured by these components. The computer has recognized a return signal error.
&
P1153:
ECM has detected the switch ratio of rich to lean and lean to rich was below a determined number problem cause.
1.Failed HO2S21 heater circuit
2.HO2S-21 Signal shorted the ECM Ground
3.Improper oxygen supply to sesor- Check sensor connector and wires.
Could both of these codes be caused by my MAP or what? O2's are brand new by the way.
Last edited by StreetSilverado; May 8, 2009 at 03:03 PM.


