Datalogging on 85 TPI
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Joined: Apr 2008
Posts: 2,342
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From: Dumfries, VA
Car: 1985 Z28
Engine: 334 Stroker Superram 222/230
Transmission: Full Manual 700R4 / 3k Street Edge
Axle/Gears: 3.90 Eaton, Moser, Richmond & More
Datalogging on 85 TPI
Hey guys I was wondering, since 85 was such a unique year for TPI how many of you on here who have datalogged an 85 TPI have had to use a resistor on the A and B pins of the ALDL port to get your ECM to send data (Causes car to have high idle and disables knock retard, not exactly useful for tuning).
I know the serial cable diagram stated "most" ECM's do not require this resistor. So I was wondering if all 85 ECM's were like this or if I just got an oddball one.
I know the serial cable diagram stated "most" ECM's do not require this resistor. So I was wondering if all 85 ECM's were like this or if I just got an oddball one.
Joined: Dec 2001
Posts: 459
Likes: 2
From: Finland
Car: 1985 Camaro Z-28
Engine: 385
Transmission: th700r4+Edge 2800 stall
Axle/Gears: 3.42
Re: Datalogging on 85 TPI
Same here.Doesn't send data when I try and removed resistor(this was with winaldl)
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