Engine Repair Help
I have a 2002 OZ. My wife got caught in a heavy downpour, and the Cold Air intake took in cold water instead. The result of the water ingestion was catastrophic connecting rod failure on cylinder 1, punching holes on both sides of the block you can literally see through. I have replaced the long block, but I am still having a run issue. The symptoms include: rough idle, lower than normal power, slow throttle response, and extremely heavy fuel use, with heavy fuel smell at the exhaust.
Compression : 170+\- 3% across all four
Cam Belt is spot on marks
plugs are good
fuel pressure is difficult to test with no test port, but when I disconnect return line with engine running, fuel comes past regulator, so I assume that pressure is ok
I replaced the upstream o2 sensor
I replaced the IAC
I replaced the MAF (however, it was from a 16 valve engine on a Galant of the same year. Has a different number on top, but all other appearances are identical)
Scantool.net software reads lean condition, the fuel trims are whacked out
Everything points to intake air leak, but I can't find one, I have listened, felt, and sprayed various test liquids all over the thing. I have gone over it again and again, and I am running out of ideas. Help.
Compression : 170+\- 3% across all four
Cam Belt is spot on marks
plugs are good
fuel pressure is difficult to test with no test port, but when I disconnect return line with engine running, fuel comes past regulator, so I assume that pressure is ok
I replaced the upstream o2 sensor
I replaced the IAC
I replaced the MAF (however, it was from a 16 valve engine on a Galant of the same year. Has a different number on top, but all other appearances are identical)
Scantool.net software reads lean condition, the fuel trims are whacked out
Everything points to intake air leak, but I can't find one, I have listened, felt, and sprayed various test liquids all over the thing. I have gone over it again and again, and I am running out of ideas. Help.
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sa215ol
04-06 Ralliart General
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Dec 3, 2012 06:24 PM




