Using the hex editor to remove spark advance when in ALDL mode?
08-05-2013, 06:45 PM
#1
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Using the hex editor to remove spark advance when in ALDL mode?
I'm using $32B. There is no place to edit this like in $6E. I found an old thread where RBob says:
I'm still confused. Is this hex address 23? Thanks for the help. This is listed in the $32B extended XDF. But I'd like to see how to edit it using the hex editor.
I'm still confused. Is this hex address 23? Thanks for the help. This is listed in the $32B extended XDF. But I'd like to see how to edit it using the hex editor.
Last edited by IROCThe5.7L; 08-05-2013 at 07:01 PM.
08-06-2013, 04:13 AM
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Re: Using the hex editor to remove spark advance when in ALDL mode?
Ahh! Thank you very much. 
01-24-2014, 11:07 AM
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Re: Using the hex editor to remove spark advance when in ALDL mode?
GM did things like this to aid in troubleshooting. Adding SA causes detonation, which can be used to test the ESC system. IIRC, the 10K resistor also bumps up the idle speed.
Other ALDL modes will/can force closed loop operation even if the engine isn't up to temperature or the O2 sensor isn't active yet.
RBob.
Other ALDL modes will/can force closed loop operation even if the engine isn't up to temperature or the O2 sensor isn't active yet.
RBob.
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