Thread: High RPMs!

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First off you wil get a check engine light with what you have done to the converter. Next you wil probably find the Idle Air control motor or the harness to the motor is the problem. I have seen the wire harness break and have an intermitent open between the ecm and iac. Also check the operation ofthe TPS. You willl need a good scanner or DVOM. Scanner works best

I did get the check engine light. I need to get the fake O2 sensor. They harness seems to be ok. I didn't get into too much detail looking it all over cuz I had class today, but that could be a possibility. Cleared all codes with my scanner...but it didn't read anything other than the O2 sensor...then again its not a spectacular computer either...