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22.06.2018, 20:14
Our trusty Pontiac TS 3.1L SE has developed a bad case of misses while hot. It's like the engine cuts-out for a second then recovers and so on until it eventually stops. In higher revs it's usually ok but sometimes the rpm just drops.
Nothing we've tried so far had any effect:
- changed the whole distributor assembly with ignition-control chip and new pick-up coil
- changed the ignition coil
- tried another engine computer/ECU
- spark plugs are original ACDelcos and new
- spark plug wires are new
- Idle Air Control valve is new
- every other sensor checked-out ok
We're at the ropes-end with this one.
Any ideas on what we could try before throwing in the towel?
Nothing we've tried so far had any effect:
- changed the whole distributor assembly with ignition-control chip and new pick-up coil
- changed the ignition coil
- tried another engine computer/ECU
- spark plugs are original ACDelcos and new
- spark plug wires are new
- Idle Air Control valve is new
- every other sensor checked-out ok
We're at the ropes-end with this one.
Any ideas on what we could try before throwing in the towel?