Quote:
Originally Posted by jadams161
Misfires tend to be plugs and coils. If the plugs and coils are old then they need to be changed. Tuning will almost immediately cause plug and coil issues. Did you replace the fuel pump regulator/filter in the left side of the gas tank?? Plausibility is generally linked to the old style/ faulty LPFP sensor on the fuel rail under the intake. There is an updated unit.
The log shows good LPFP pressure.
When you do a log you need to have all standard boxes checked and add "fuel mode". Do a log in 3rd gear. DSC completely off, rolling in 3rd (manual mode) at 30 mph and push pedal to the floor. Hold until about 6k, shift to 4th and let off.
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Here is the new log! I replaced my hpfp and lpfp sensor with a used working one, not the new style though, my tuner was saying fueling is the issue but is fueling fixed now?and maybe my misfires are caused by spark plugs? I should be around 520 whp should I switch to 2 step colder spark plugs? He said fuel rail pressure was bad before
https://datazap.me/u/n54andrew/fueli...og=0&data=3-21