10K resistor - change the driving characteristics of the car
 

Hey - quick question - when I put the car into ALDL mode (10K resister) , it increases the idle - significantly - 1200 rpm and 700 in drive. Is there a good reason that it does this? if not, does anyone know how to fix it?

Re: 10K resistor - change the driving characteristics of the car
 

Remove the 10k resistor. It tells the ecm your in field service mode and to symtart data flow. Timing locks and rpm will raise as per programming .

Re: 10K resistor - change the driving characteristics of the car
 

Right - when I remove it, it stops sending data. Is there a trick to starting the data flow and keeping it going after the resister is removed? (1988 Formula 5.7 TPI)

Re: 10K resistor - change the driving characteristics of the car
 

Welcome to the 165 ecm

Re: 10K resistor - change the driving characteristics of the car
 

I don't think it's field service mode because the light doesn't flash while the engine is running and I'm data logging. It should flash to indicate rich/lean in field service mode, right?

Re: 10K resistor - change the driving characteristics of the car
 

http://forum.tunerpro.net/viewtopic.php?t=2215
Your correct on fsm