12-13-2011, 01:10 PM
After taking care of some outstanding maintenance items, thermostat, wires and plugs, I went back to the basics of fuel, spark, compression. I ignored the codes this time and went by how the car felt, the miss didn't really feel random when it was there, but did feel bad...I guess that's what happens when you lose 1/4 of an engine.
I narrowed it down to #4 cylinder, disconnecting the injector made no change in idle. Rechecked compression and did leakdown (damn it's easy on this engine), made sure wire and plug were good (spark checker and swapped plug with #1) and finally swapped injector with #1 and the miss went with it. I ohm'ed the injector and listened to it click away like the others but it was definitely dead. Yay!
Quickly found some injectors on CL for cheap (1 in 4 chance of a good one) and replaced the bad one this morning. Running great again and consistent heat with the new thermostat.
Hopefully that is it. I mean, the injector was definitely bad, but there were so many codes initially. Plugs were pretty bad though - worn to about a .070 gap. I was really surprised the miss didn't go away with the new plugs. I found the set I thought I put in with the new timing belt :oops:
I narrowed it down to #4 cylinder, disconnecting the injector made no change in idle. Rechecked compression and did leakdown (damn it's easy on this engine), made sure wire and plug were good (spark checker and swapped plug with #1) and finally swapped injector with #1 and the miss went with it. I ohm'ed the injector and listened to it click away like the others but it was definitely dead. Yay!
Quickly found some injectors on CL for cheap (1 in 4 chance of a good one) and replaced the bad one this morning. Running great again and consistent heat with the new thermostat.
Hopefully that is it. I mean, the injector was definitely bad, but there were so many codes initially. Plugs were pretty bad though - worn to about a .070 gap. I was really surprised the miss didn't go away with the new plugs. I found the set I thought I put in with the new timing belt :oops:
Current: 1985 LS1 Corvette | 2014 328i Wagon F31
Former: 2010 Ford Edge | 1999 Integra GS
I have a little bit of a rub near lock but if you are turned to lock on a track there are other problems already...
Former: 2010 Ford Edge | 1999 Integra GS
I have a little bit of a rub near lock but if you are turned to lock on a track there are other problems already...