5.3 80e swap trans tune issue
04-27-2017, 12:33 PM
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5.3 80e swap trans tune issue i need some help with my swap please! i have a 64 galaxie wagon with 2004 5.3 and an 2003 80e from and express van.The engine is 100 percent stock as is the trans. im using a psi conversion stand alone harness/fuse block.MY ISSUE IS THE CAR STARTS UP AND RUNS FINE WILL SHIFT UP THREW THE GEARS AND THE CONVERTER WILL LOCK BUT WHEN THE CAR SLOWS DOWN IT DOES NOT SHIFT DOWN! IT ALMOST STALLS OUT AND YOU HAVE TO PUT IT IN PARK OR NEUTRAL TO GET IT TO GO TO 1ST AGAIN. ANY HELP WOULD BE APPRECIATED 
i have searched also with no luck could this be in the tune
i have searched also with no luck could this be in the tune 
04-27-2017, 12:45 PM
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The tune was done by a local tuner that is well known in sc with hpt. He pointed me to the harness as the issue and psi says they check every harness and it would not have left if it was not right and that i should buy and ecu from them. the only issue i have with that is that is $200 bucks that im not sure is going to fix the issue ( dont trust a sales person)