Hey, so I've been chasing a misfire, occurs at idle, not on every rev, randomly. Started a few months ago and has gotten worse over time to the point where now I can't ignore it anymore.
Spark/coil is good.
Compression is good (170-180psi in every cylinder).
A/F (at idle) stays around 14.7-15 even when misfiring.
I was going to swap injectors around because I thought the misfire was in cylinder 1 but it's hard to tell because it's intermittent, pulling any plug makes it run worse.
When I took out the injectors I tested their impedance, (they're RX-7 high impedance 550's) and 5 of them are 12.8-13 Ohms and the #2 injector is 24 Ohms.
The high resistance of that injector is causing the misfire, right?? I really hope so because I have no other ideas
Thanks!
Spark/coil is good.
Compression is good (170-180psi in every cylinder).
A/F (at idle) stays around 14.7-15 even when misfiring.
I was going to swap injectors around because I thought the misfire was in cylinder 1 but it's hard to tell because it's intermittent, pulling any plug makes it run worse.
When I took out the injectors I tested their impedance, (they're RX-7 high impedance 550's) and 5 of them are 12.8-13 Ohms and the #2 injector is 24 Ohms.
The high resistance of that injector is causing the misfire, right?? I really hope so because I have no other ideas
Thanks!