tahoesteve666
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- Nov 24, 2015
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Just put a fully rebuilt 5.7 engine back in and adjusted the CAM Retard Offset to +1 degree using Torque app.
No other codes except P0300.
Have limited data access to ECU at moment, but some data includes, at idle and warm engine:
Intake Manifold Pressure at 36 kPa (10.6 in Hg)
MAF at 7.22g/s
dont have fuel pressure
dont have any Trim Data
Scanner has clearly indicated misfires on cyl 5 and 7, the others cylinders are solid.
I've only swapped plugs (41-993) and cap/rotor so far, no change.
I also sprayed carb cleaner...no response
Tomorrow I was planning on swapping some plug wires.
Any other suggestions to help debug this?
No other codes except P0300.
Have limited data access to ECU at moment, but some data includes, at idle and warm engine:
Intake Manifold Pressure at 36 kPa (10.6 in Hg)
MAF at 7.22g/s
dont have fuel pressure
dont have any Trim Data
Scanner has clearly indicated misfires on cyl 5 and 7, the others cylinders are solid.
I've only swapped plugs (41-993) and cap/rotor so far, no change.
I also sprayed carb cleaner...no response
Tomorrow I was planning on swapping some plug wires.
Any other suggestions to help debug this?
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