FIREBIRDCAMARO, Do you fix your problem? I have the same issue of Jimmy 4.3 cold start problem, I have the same Jimmy 1994 with over 250,000, works good except for the issue of cold start problem,
Now I can start the engine after 6 or 7 trials, after that is totally warm then works and start correctly at the 1st ignition.
So the issue is cold start problem, even spark, cables, rotor, CPI, fuel pump are new.
What do you find to solve your issue?
Friday, October 6th, 2017 AT 11:55 PM