Hello all,
I'm looking for any help with an 2008 3.6 VVT mystery. Vehicle history is 80k, timing chains and cam phasers replaced 8k ago with Cloyes parts and has run great since, until now. On a 1400 k trip, the last 600k continuous driving, stopped for gas and resumed. Made it about another 60 k and vehicle hits limp mode for about 10k and then shuts down. Code reader says (0343,0367,0347,0393) on crank but will not start. Replaced all cam sensors, crank sensor, spark plugs and coils on recommendation from GM mechanic. Checked wiring to ECM, tried a different ECM from another Nox with same no start result. Has 55psi fuel pressure. Sounds like one cylinder fires once in a while during cranking.
Any suggestions what to look for next?
Thanks in advance.