Here's the deal - I had a great condition m20b27. Did some preventive maintenance: timing belt, valve adjustment, water pump, some misc seals and gaskets, and spark plugs (wr9ls). Cap and rotor are pretty new, everything else is great.
So I do the maintenance, go for a drive, and the fuckin thing starts missing. It doesn't do it at idle or WOT, but basically everything in between. It does it in every gear, but mostly when the engine is under only light load. Say I'm in 2nd gear, 1/2 throttle. That will bring the rpm's up to 3k or so. At this point, it's missing and stumbling a bit. If I give it more gas, it misses and stumbles more, but still accelerates. If I go full throttle, it pulls like a raped ape, like nothing is wrong.
Timing is right, cap/rotor are good and coil pack is good (tried spare parts - no change).
Any ideas????
Here's my plan of action (probably in this order):
Try spare AFM, spark plugs, plug wires, TPS, FPR, check valve adjustment, m20b25 swap.
Another thing that pisses me off is the cam gear bolt came loose, the cam gear was wobbling, so I had to rip everything apart and tighten it back up. Now the brand new cam gear seal is leaking, and it's leaking pretty bad. I get a puddle when I park.
You try to do some preventive maintenance and everything fucking goes to hell.
So I do the maintenance, go for a drive, and the fuckin thing starts missing. It doesn't do it at idle or WOT, but basically everything in between. It does it in every gear, but mostly when the engine is under only light load. Say I'm in 2nd gear, 1/2 throttle. That will bring the rpm's up to 3k or so. At this point, it's missing and stumbling a bit. If I give it more gas, it misses and stumbles more, but still accelerates. If I go full throttle, it pulls like a raped ape, like nothing is wrong.
Timing is right, cap/rotor are good and coil pack is good (tried spare parts - no change).
Any ideas????
Here's my plan of action (probably in this order):
Try spare AFM, spark plugs, plug wires, TPS, FPR, check valve adjustment, m20b25 swap.
Another thing that pisses me off is the cam gear bolt came loose, the cam gear was wobbling, so I had to rip everything apart and tighten it back up. Now the brand new cam gear seal is leaking, and it's leaking pretty bad. I get a puddle when I park.
You try to do some preventive maintenance and everything fucking goes to hell.
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