XJ-ARNIE
NAXJA Forum User
- Location
- Cary, Illinois
Nope. Cat and o2 are related to all 6, your miss would be random or on all 6.
I'm of the opinion the compression is low, but not bad enough as well, however, it may be worth your time to preform a wet compression test on that cylinder and isolate the cause of the low compression.
I'm pretty sure you said you did a leak down, where did you hear the air pressure escaping? This is my favorite way to isolate low compression issues. Listen in the throttle, the tailpipe and the valve cover (or dipstick tube)
It's no coincidence that your low compression and your miss live on the same bucket, stay on track, and don't let it get to you. Sooner or later, through deductive reasoning you will find it.
Can you verify that EVERY time you press on that injector, your miss goes away?
I'm of the opinion the compression is low, but not bad enough as well, however, it may be worth your time to preform a wet compression test on that cylinder and isolate the cause of the low compression.
I'm pretty sure you said you did a leak down, where did you hear the air pressure escaping? This is my favorite way to isolate low compression issues. Listen in the throttle, the tailpipe and the valve cover (or dipstick tube)
It's no coincidence that your low compression and your miss live on the same bucket, stay on track, and don't let it get to you. Sooner or later, through deductive reasoning you will find it.
Can you verify that EVERY time you press on that injector, your miss goes away?