(SOLVED) Dead cylinder at idle? Low temp on header collector
What could cause a dead cylinder at idle (no change in idle when unplugged) low temp on header collector (230F compared to ~450F on other cylinders) and what to check next?
I've swapped plug and wire with neighboring cylinder and there was no change. Cap and rotor are pretty new
1990 stock 360, 4bbl smog intake with EGR plugged, headers, Thermoquad 9800
16 inHg vacuum at 750rpm, needle fluctuates 1-2 inHg
Cant find any external vacuum leaks
Compression test
1: 135psi 2:135
3: 130 4:140
5: 130 6:130
7: 130 8:130
What could cause a dead cylinder at idle (no change in idle when unplugged) low temp on header collector (230F compared to ~450F on other cylinders) and what to check next?
I've swapped plug and wire with neighboring cylinder and there was no change. Cap and rotor are pretty new
1990 stock 360, 4bbl smog intake with EGR plugged, headers, Thermoquad 9800
16 inHg vacuum at 750rpm, needle fluctuates 1-2 inHg
Cant find any external vacuum leaks
Compression test
1: 135psi 2:135
3: 130 4:140
5: 130 6:130
7: 130 8:130