Misfire only when hot?
Once the truck gets hot hot it starts to have misfires in 5 and 7. Misfire typically only happens at idle after coming down from higher rpm. The upstream oxygen sensors are reading 15 for long term fuel trims. This meaning that we are lean in the mixture. I have narrowed it down to possibly dirty injectors, ECU, Dirty intake valve (sealing issue).
2条评论
Was wondering if you ever got it figured out, mine is doing the exact same thing even on the same cylinders
由 Ralph Swaim 完成的
It turned out to be the phasers, but I don"t remember exactly. I think we got lock out phasers.
由 NR26 完成的