cavity.
New Member
- Joined
- Jul 12, 2016
- Messages
- 4
- Reaction score
- 0
- Points
- 0
- Vehicle Year
- 1997
- Make / Model
- Ford
- Transmission
- Manual
1997 Ford ranger 2.3L w/ 100k miles
Slight misfire at idle (warm or cold), once every 300 miles or so I will get a P0302 code (misfire cylinder 2)
The car has:
New Plugs/Wires
New injector on cyl 2
Fresh oil, oil filter, air filter
New Catalytic converter
I've tried:
different spark plugs on cyl 2
Pulling either of the plug wires from cyl 2 makes idle rougher
both plugs at cyl 2 have spark
Vacuum test is unsteady -- points to ignition issue
Compression is a little low on cyl 2 (155 dry, 170 wet) (other cylinders have 168-175 dry), but im not sure this is enough to cause the steady misfire
So my two questions are:
Could this low compression be enough to give me a consistent misfire?
Could a coil pack be faulty if it is still giving visible spark (tested at idle)?
Thanks for any help, i really appreciate all the posts here.
Slight misfire at idle (warm or cold), once every 300 miles or so I will get a P0302 code (misfire cylinder 2)
The car has:
New Plugs/Wires
New injector on cyl 2
Fresh oil, oil filter, air filter
New Catalytic converter
I've tried:
different spark plugs on cyl 2
Pulling either of the plug wires from cyl 2 makes idle rougher
both plugs at cyl 2 have spark
Vacuum test is unsteady -- points to ignition issue
Compression is a little low on cyl 2 (155 dry, 170 wet) (other cylinders have 168-175 dry), but im not sure this is enough to cause the steady misfire
So my two questions are:
Could this low compression be enough to give me a consistent misfire?
Could a coil pack be faulty if it is still giving visible spark (tested at idle)?
Thanks for any help, i really appreciate all the posts here.