Home-made ALDL interface box and Tunercat FLASHREAD help
05-08-2001, 01:41 AM
#1
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Location: Fort Wayne, Indiana
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Car: 1987 Pontiac Fiero
Engine: 3800 Series 2 Turbo
Transmission: 4T60-E
Axle/Gears: 3.33
Home-made ALDL interface box and Tunercat FLASHREAD help
I followed a link from tunercat's page referring me to a guy that put up a diagram on an ALDL interface box that utilizes the MAX232 chip. The problem is, I have built two of these and still cannot get it to work. Tunercat's FLASHREAD program gives me "INCORRECT MESSAGE SENT" errors whenever it tries to read the PCM. Like I said, I have tried different capacitors in the second box buildup but with the same results. Am I using the wrong design? Suggestions?
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1987 Trans Am GTA WS6
-5.7L SuperRam
-4L60-E Transmission
-3.73 SRD
1988 Pontiac Grand Am
-3800 SFI V6
-125-C Transmission
1985 Pontiac Fiero SE
-3800 Supercharged
-125-C Transmission
Domestic Terrors Car Club Online
------------------
1987 Trans Am GTA WS6
-5.7L SuperRam
-4L60-E Transmission
-3.73 SRD
1988 Pontiac Grand Am
-3800 SFI V6
-125-C Transmission
1985 Pontiac Fiero SE
-3800 Supercharged
-125-C Transmission
Domestic Terrors Car Club Online
05-08-2001, 08:03 AM
#2
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Location: Baton Rouge, LA, USA
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Car: 87 T/A
Engine: 441 SBC 12.5:1 0.680" Lift
Transmission: T-56
Axle/Gears: 4.10 TruTrac Moser 9"
What ECM is the FLASHREAD program designed to run off of? Pre-93 didn't have PCMs if I'm not mistaken. Looks like you have a 87 165, try using my program to read run-time data from the car. You can also use it to dump the EPROM content to file for editing purposes...
-Craig
-Craig
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