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70shortnphat · 05-10-2002, 12:08 AM

I beleive this engine is equipt with (ESC)and it can malfunction and not send a code.
The ECM controls timing through the ESC module , knock sensor, and refrence signal from dist. There may be a problem somewhere in this system that is causing the ECM to retard the timing (up to 20 degres) and that is causing a rich condition and heating up the cat. I feel that the chery red cat is the result of another problem and not the problem itself. It will be a problem if It keeps getting red hot and fuel soaked.Good luck with this and please let us know what the problem was when you fix this so we can all benefit.

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1970 short bed fleetside

05-10-2002, 12:08 AM	#11
70shortnphat "See the U.S.A....." Join Date: Apr 2002 Location: Richmond TX. Posts: 269	I beleive this engine is equipt with (ESC)and it can malfunction and not send a code. The ECM controls timing through the ESC module , knock sensor, and refrence signal from dist. There may be a problem somewhere in this system that is causing the ECM to retard the timing (up to 20 degres) and that is causing a rich condition and heating up the cat. I feel that the chery red cat is the result of another problem and not the problem itself. It will be a problem if It keeps getting red hot and fuel soaked.Good luck with this and please let us know what the problem was when you fix this so we can all benefit. ------------------ 1970 short bed fleetside __________________ 1970 short bed fleetside 1949 all origional chevy 3600 1974 camaro Richmond , Texas(just S.W.of Houston)