Pony_Up302ci
New Member
- Joined
- Jun 28, 2021
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- 15
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I know there are hundreds of post regarding this topic, but I think I have something unique going on here. Let me start with the codes.
KOEO 564(M), 57, 72,73,76,and 77.
KOER 72,36, and 543.
Cylinder test is strange. All 8 cylinders were tested because I counted 8. At the end I received 9 flashes on one cylinder, then another 9 flashes, then no more. I waited about 3 minutes and received no more flashes. I went through the process twice and got the same results. Is it possible to have 6 bad cylinders? I have troubleshooted the surging idle with checklist provided in another forum, MAF sensor, AIT, Throttle body, IAC, TPS, smoke tested for vacuum leaks, and everything checked out till yesterday. I fix one problem, then get a whole new set of codes. Most of these codes have to do with a circuit being high or low. 543 and 564 is either input "A" circuit or "A" open circuit. I am at a loss. The car runs fine for the first couple of minutes then dies. Only on the freeway CEL comes on. 187,998 miles. I have tried to attach a video clip, but it might be too large of a file.
KOEO 564(M), 57, 72,73,76,and 77.
KOER 72,36, and 543.
Cylinder test is strange. All 8 cylinders were tested because I counted 8. At the end I received 9 flashes on one cylinder, then another 9 flashes, then no more. I waited about 3 minutes and received no more flashes. I went through the process twice and got the same results. Is it possible to have 6 bad cylinders? I have troubleshooted the surging idle with checklist provided in another forum, MAF sensor, AIT, Throttle body, IAC, TPS, smoke tested for vacuum leaks, and everything checked out till yesterday. I fix one problem, then get a whole new set of codes. Most of these codes have to do with a circuit being high or low. 543 and 564 is either input "A" circuit or "A" open circuit. I am at a loss. The car runs fine for the first couple of minutes then dies. Only on the freeway CEL comes on. 187,998 miles. I have tried to attach a video clip, but it might be too large of a file.