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Re: Why would you have to MOD your CIS ?
In a message dated 9/21/99 2:49:14 AM Eastern Daylight Time,
<< Maybe, but the MAC12D does it just the same. Not often, but an attached
LED light will show that the cold start valve fires very occasionally
during hard acceleration.
I am not too familiar with that particular function of the MAC12D, but
the point is that there are other functions within that system that enrich
the fuel under boost which results in increased fuel pressure throught the
injectors, which ensure proper fueling to each cylinder. The cold-start
valves are known for their poor distribution of fuel to each cylinder, and if
used to enriched fuel under boost, can result in some cylinders being
severely lean, while others are too rich-hardly a reliable device to prevent
engine damage and ensure performance...