Gear vs p/n idle , no p/n switch
09-27-2018, 11:10 PM
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Gear vs p/n idle , no p/n switch
i have recently swapped a 2001 saburban drivetrain into a 53 truck , performed adjustments in pcm to change from dbw to dbc, all stock except tsp 220r cam and circle d converter 2800
doing this swap I used an aftermarket harness that does not utilize the prndl or a p/n switch
everythkng works as as should and drives good
problem im having is in physical p/n idle is great 675/700 but when i put in in physical gear or rev engine rpm goes up couple hundred and pushes against the brakes making it uncomfortable at stop lights
my understanding is when there is no p/n switch it uses (gear) tables for idle and airflow references if this is wrong pleas let me know..
how can i get this engine to maintain approx. 700rpm in physical gear like it does park, also what tables does it read differently when switching from gear to p/n when it is only reading signals from transmission ?
doing this swap I used an aftermarket harness that does not utilize the prndl or a p/n switch
everythkng works as as should and drives good
problem im having is in physical p/n idle is great 675/700 but when i put in in physical gear or rev engine rpm goes up couple hundred and pushes against the brakes making it uncomfortable at stop lights
my understanding is when there is no p/n switch it uses (gear) tables for idle and airflow references if this is wrong pleas let me know..
how can i get this engine to maintain approx. 700rpm in physical gear like it does park, also what tables does it read differently when switching from gear to p/n when it is only reading signals from transmission ?
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