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efi tranny log,pros help if you can

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Old Aug 7, 2013 | 10:31 PM
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Default efi tranny log,pros help if you can

Posted this in trucks tuning section,kinda slow there,hope nobody minds posting it here were more talent hangs here

I will try and make this long story short,picked up a 2000 s10 zr2 130K,I had not driven it very much .pulled the skid plates and plastic from under side,drove to car wash ran great everything seemed tip top,gave it major engine douch top to bottom,drove out of there,now had a bog.didnt accelerate correctly more gas you gave the more it would bog.got home pulled cap,was dry.blew air in dist. dry,well all i know was i caused it.cant find anything popped off.no codes.borrowed a MAF,it seems it cured the boggging.dont know why,now whats happening which i didnt notice before with only a few miles of driving,The TCC comes on in 4th at 50MPH and goes off on off on off......thats what feels like what is happening,before pulling VB to repair VB TCC bore with a special valve or a heavy spring to make it not pulse with modulation.no 1870 code or what ever it is.never gone into limp mode.just concerned this is still a cause from engine douching.please pros try and make sence of log,need better pids i can relog.thanks
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File Type: efi
s10 trans 2.efi (70.5 KB, 159 views)
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Old Aug 8, 2013 | 04:16 AM
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Sounds like your PCM is detecting engine misfires, this will unlock the TCC while misfires are present.
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Old Aug 8, 2013 | 09:36 AM
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Originally Posted by joecar
Sounds like your PCM is detecting engine misfires, this will unlock the TCC while misfires are present.

thanks for looking at log.I need to now log for miss,never felt any miss,only when it feels like converter coming off and on rapidly at 50mph

what stuck me funny was the engine was not warmed up and it still did it.Doesnt the temp have to be up before pcm allows lock up?
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Old Aug 8, 2013 | 11:05 AM
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You might still have water in the harness connectors.
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Old Aug 9, 2013 | 01:11 AM
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Yes, typically there is a minimum temp before lock-up can occur. It lets the engine rev higher to help it get to temp quicker which, at temp, is more emissions compliant. On my digital gauge my converter starts locking in the mid 11x teens. I think it was 113 or so. Previous vehicles have done the same thing when you jump straight on the hwy first thing in the morning.
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Old Aug 9, 2013 | 03:50 PM
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Originally Posted by gonzo 6.2
thanks for looking at log.I need to now log for miss,never felt any miss,only when it feels like converter coming off and on rapidly at 50mph

what stuck me funny was the engine was not warmed up and it still did it.Doesnt the temp have to be up before pcm allows lock up?
Originally Posted by joecar
You might still have water in the harness connectors.
What I'm saying is: you still have water in the harness connectors which is causing an intermittent short which is locking/unlocking your TCC rapidly (when it should not be being commanded locked at all yet).
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Old Aug 11, 2013 | 01:42 PM
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seems to be getting well......water somewhere is drying out.truck is coming around


THANKS TO ALL WHO POSTED IN THIS THREAD
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