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So, we all agree that mashing the throttle while the cold advance is on isn't a desirable thing to do. I think TGP and Dependable have the emissions concept backwards. Retarded timing reduces NOX emissions. GM probably bought the cold advance option on the pump so that they could offer a more...

I grasp how the high idle works, and really the only reason I'm thinking about fooling with the high idle is that it is tied into the same thermostat as the cold advance. The cold advance is what bugs me. I fire up the pickup on a 40 degree morning and it takes at least 10 minutes for it to...

I hate driving around the neighborhood while the cold advance is on in the wee hours of the morning. I am thinking of wiring the cold advance / high idle to a double throw switch. Up would be manual on, center position would be disable and down would be normal, where it is controlled by the...