Changed the Coil Packs - Now Code PO303

[skypilot]

Tried to change just one pack but that was only an incremental improvement so I changed them all, since I had been receiving a random misfire code. Much improved but still throwing a code PO303 but now it is specific to cylinder 3 which now gets me down to either a fouled plug, a bad wire or dirty injector. Will address that tomorrow along with some other issues.

Did some scans and LTFT's are still going as high as 16.4 on any deliberately brisk throttle application, although the STFT's only fluctuate between maybe -3.5 though +5. They all drop to 0 on 0 throttle which is better than I was doing with the previous engine.

If it doesn't rain tomorrow maybe I can give the engine some more attention like the supercharger fluid, thermostat mod, change out the fuel filter, etc.
Any suggestions or comments are appreciated.

Well I found it that it was a broken plug that was causing the code, AC Delco Iridium put in by the mechanic that did the engine swap.

[00Beast]

Yeah, generally they don't work to well when they are in that shape.

[myfirstbonnie]

When the engine swap was done, did they use the old injectors and fuel rail, or the ones on the motor they put in?