If your going to use the 40 pin. Then yes you want a harness from truck 70 pin to ecm 40 pin.
5EK to 2WS
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by rydr, May 29, 2020.
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You need the processor module as the Pete gauges are datalinked and the 40 pin ecms do not support it. 70 pin ecms will talk to the cab and all the gauges will work fine without the module.
spsauerland and 062 Thank this. -
1 - 3600$ completely new harness with processor module, from firewall to ecm 40 pin.
2 - 70 pin to 40 pin adapter for 750$ just plug into the existing truck engine harness, but over the phone he told me the ecm would not communicate with the newer cab electronics.
Is he trying to oversell me or is this actually needed? If I have to buy the 3600$ harness its not an issue just wondering why an adapter wouldnt work -
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pushbroom Thanks this.
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Superhauler Thanks this.
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