I have a 2005 1500 4x4, it was great when i bought it but then it started to get this 0300 code pop up every so often and then every day. I am fairly knowledgable in auto so i went through diagnosis as i could, and even went to shops but to no avail. Replaced MAP, MAF, Plugs, Wires, tested coils, ground points (recommend anyway), 02 sensors, cam and crank sensors, intake gaskets and knock sensors, tps, all vac lines checked, pcm and connections, throttle body cleaned and inspected, fuel psi test, injectors and orings, cats deleted and programmed out.
Only misses when hot. I just found when i unplug the coil connectors to missing holes 3&4 it makes no difference in idle hot, bit still shows spark with spark plug test light. While missing volt gauge fluctuates quite a bit. Thoughts?
Only misses when hot. I just found when i unplug the coil connectors to missing holes 3&4 it makes no difference in idle hot, bit still shows spark with spark plug test light. While missing volt gauge fluctuates quite a bit. Thoughts?
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