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thanks, I have the 16176424 ECM - is the 12 pin port the wrong one? Apologies for asking stupid questions but I trying to get my head around exactly what I have as it appears the ECM has been retro fitted to my 1989 LT1 powered C1500. I am keen on the NVRAM upgrade but I am not sure if it will work as it appears the ALDL interface I require isn't compatible. Any further guidance is appreciated.

cheers

Hello everybody

I have 2 corvettes

Corvette C5 5.7L LT1 1997 Manual ( i think this might be an LT1 )
Corvette C5 5.7L LS1 1998 Automatic

can this aldl cable read and write bot of my cars?


Thanks in advance

Leon

LT1truck wrote:thanks, I have the 16176424 ECM - is the 12 pin port the wrong one? Apologies for asking stupid questions but I trying to get my head around exactly what I have as it appears the ECM has been retro fitted to my 1989 LT1 powered C1500. I am keen on the NVRAM upgrade but I am not sure if it will work as it appears the ALDL interface I require isn't compatible. Any further guidance is appreciated.

cheers

The '424 PCM has 8192 baud ALDL, but may be wired to a 12 pin connector in US vehicles vs. 16 pin in AU vehicles. With two connectors, an adaptor could be made. Gnd = pin 5 = pin A, Data = pin 9 = pin M.

Joe.

Anyone know how to get this? These 2 guys won’t respond to email or pm.

I have replied to every PM I have received, when did you send it?

Sorry mate yes you did reply you have no stock. Antus is not replying.

Will one of the cheap units from an Autoshop work?

You could get one from envyouscustoms, PM tazzi on here.

Sorry about the late response. All PMs responded.

new pm sent @antus