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On the side of the CCC module is a small cap under
which is an adjustable potetiometer . What is it for and how does one adjust it
?. I read somewhere it is for calibrating the airflow meter but I can't remember
anything more about it and the source is long gone . A few things I've learned
are if the air pump pipe going to the rear of the exaust maifolds is leaking ,
the air drawn in under running , after the diverter sends the air down stream ,
can cause the O2 sensor to think the engine is running too lean and the CCC
will richen up the mixture untill the engine stalls from over fueling .
Another is intermittent stalling .( this one took me a while ) . the
connectors on the CCC are crimped into the circut board and soldered . Over time
the solder cracks and the crimps come loose . Primarily on the rearmost
connector . the repair is to cut open the top of the CCC and re solder the
connections . Be wary , as some are connected on both sides of the circut
board and will have to be soldered accordingly . if that doesn't help , cut a
little more of the top off and you will find a power resistor on the board .
Resolder each end . This last one was the cure for my intermittent
stalling . Remember to seal all openings against vacum leaks .
thanks . A.R. Guelzow , Mechanic ,Bel Air
Automotive , North Vancouver , BC Canada
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