went to track today and 1st pass ran great, after that, all day long if I went to the floor with it, it just started breaking up or sputtering. Thought it was rich but scanmaster says 750-790 on race gas. I recently went to a front mount and dual fans, car has hot wire kit, but no volt booster. I'm wondering if its getting enough voltage under full throttle, scanmaster reads 13.3-13.5 on batt. I tried maf sensor, coilpack, ecm and even different chips. the only thing I haven't looked at is the plugs. Any suggestions?
sputtering problem
- Thread starter Velon
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