10K resistor - change the driving characteristics of the car
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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?
Joined: Dec 2004
Posts: 16,754
Likes: 996
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
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 .
Thread Starter
Junior Member
Joined: Aug 2017
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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)
Joined: Dec 2004
Posts: 16,754
Likes: 996
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 10K resistor - change the driving characteristics of the car
Welcome to the 165 ecm
Thread Starter
Junior Member
Joined: Aug 2017
Posts: 42
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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?
Joined: Dec 2004
Posts: 16,754
Likes: 996
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 10K resistor - change the driving characteristics of the car
http://forum.tunerpro.net/viewtopic.php?t=2215
Your correct on fsm
Your correct on fsm