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Originally Posted by sutphen 30
(Post 4693594)
injectors,,maybe retorque the intake manifold also,pull the exhaust pipe and see if its wet,may be reversion.
https://cimg7.ibsrv.net/gimg/www.off...da85c3ee5f.png |
When you say the tach was jumping, was it representing RPM changes or just random jumping around? If the later, my money is on the ign sys. I'd swap distributors and test. Not sure if your engs have ign boxes or not. If so swap them first.
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Originally Posted by 1MOSES1
(Post 4693613)
dont tell me reversion. Just bought brand new dry pipes 2 seasons ago. Also why would it be skipping on one and not the other with reversion? Only other thing I can think of is injectors. https://cimg7.ibsrv.net/gimg/www.off...da85c3ee5f.png |
Originally Posted by zz28zz
(Post 4693621)
When you say the tach was jumping, was it representing RPM changes or just random jumping around? If the later, my money is on the ign sys. I'd swap distributors and test. Not sure if your engs have ign boxes or not. If so swap them first.
there are 4 items left on ignition system to check IMO...distributor coil, ignition module, spark plugs, and ignition coil. |
Originally Posted by sutphen 30
(Post 4693641)
stick some rubber hose on the water dumps,,extend them and see if it cleans up the skip.
i seriously hope hope the brand new valve train we just put in isn’t messed up already. |
No way you are getting reversion with those risers on a 500efi. Not saying it couldn't be getting a little water from a bad manifold or intake gasket though.
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Pulled one side of plugs...no sign of water or rust. Plugs do look a little lean. Going to replace them all. I would think this rules out reversion. If it were reversion there would be serious signs of water. We do run in salt water. |
Pulled all plugs and replaced. Still missing and skipping. Tried swapping ignition coil still an issue. We had computer hooked up. Originally said manifold air temp sensor issue. Swapped it. Still missing. Cleared all codes. Still missing. the spark advance was all all over the place when it was running...trying to compensate for idle. New IAC didn’t do anything. |
Any suggestions next steps...was gonna try swapping injectors? Anything else I should try? |
did you replace the ignition module ?
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