So this weekend we went to a wedding across the state and everything was good until the CEL came on with what seemed to be no symptoms wrong with the car. I went to a local autozone to pull the code and it was a P0302. I disconnected the battery later on to clear the code. The CEL stayed off for a few days and then came back on yesterday. I did some research but it doesnt really help much besides the basics that I already know.
Some history on the car, the engine was rebuilt around 8K miles ago. There were no issues and it ran decent. Its the stock block and internals with new bearings, head studs, and 07 STi heads and EVAP blocked off. Since then I had a tune with the intake and exhaust. I have not had it tuned with the new turbo since the Dyno has not been available, however running off of the wastegate the car runs fine. Its a little rich in the top end but I'm not boosting it much or driving it hard until a tune. The AFRs are all fine with normal daily driving.
When doing some research, most people find out they have a bad coil or the ringlands went. Since the tune is not aggressive I do not think its ringlands. There were no bits of aluminum stuck to the plug.
I pulled the spark plugs to check them and it does look like a misfire comparing the plugs. Then I went to a compression test.
Cyl 1 had 125 and cyl 2 had 110. The only problem, I was by myself and could not watch the gauge when cranking so I just cranked it for 4 seconds. I forgot the open the throttle when doing this. My bad. I just wanted to get a comparison. Yes the engine was hot. On a freshly rebuilt motor, it should not be this far apart.
I swapped the plug and the coil to see if the code goes to a P0301 to rule out the coil.
Plugs are gapped to .026
On a side note, this thing randomly burns a significant amount of oil. I know the turbo seal went and I replaced the turbo. The intake and intercooler is bone dry not and hasnt been burning oil. On my road trip it burned a quart. On the way back, nothing. :bang: It doesnt make sense but on the spark plugs, there is oil on the threads. Normal? Maybe valve seals?
Thoughts? Opinions? Should I just pull it and rebuild it myself?
Some history on the car, the engine was rebuilt around 8K miles ago. There were no issues and it ran decent. Its the stock block and internals with new bearings, head studs, and 07 STi heads and EVAP blocked off. Since then I had a tune with the intake and exhaust. I have not had it tuned with the new turbo since the Dyno has not been available, however running off of the wastegate the car runs fine. Its a little rich in the top end but I'm not boosting it much or driving it hard until a tune. The AFRs are all fine with normal daily driving.
When doing some research, most people find out they have a bad coil or the ringlands went. Since the tune is not aggressive I do not think its ringlands. There were no bits of aluminum stuck to the plug.
I pulled the spark plugs to check them and it does look like a misfire comparing the plugs. Then I went to a compression test.
Cyl 1 had 125 and cyl 2 had 110. The only problem, I was by myself and could not watch the gauge when cranking so I just cranked it for 4 seconds. I forgot the open the throttle when doing this. My bad. I just wanted to get a comparison. Yes the engine was hot. On a freshly rebuilt motor, it should not be this far apart.
I swapped the plug and the coil to see if the code goes to a P0301 to rule out the coil.
Plugs are gapped to .026
On a side note, this thing randomly burns a significant amount of oil. I know the turbo seal went and I replaced the turbo. The intake and intercooler is bone dry not and hasnt been burning oil. On my road trip it burned a quart. On the way back, nothing. :bang: It doesnt make sense but on the spark plugs, there is oil on the threads. Normal? Maybe valve seals?
Thoughts? Opinions? Should I just pull it and rebuild it myself?
(please let it not be internal! You would have a missing aspect from the 04 that does not come with the 15)
