Spark timing, '747

rauscher at icst.com rauscher at icst.com
Mon Jan 18 20:49:27 GMT 1999



Good answers seem to always bring more questions...

For some reason, I'll bet there's a location/value that defines a cold engine
vs. a warm engine?!

Probably not something that needs to be changed, but I just gotta ask.

While I'm asking, location 0017, right after the # of cyl, by just looking at
various
bin's, I get the feeling that this value is either a transmission type or
displacement
code? This one has been bothering me for some time.

BobR.

Thanks again.

Starting to feel like a kid at Christmas as a hint of warmth returns to the
garage.


>>    Spark Adder (main spark bias). A location in the ECM mapping?
>
>Yes
>
>>    Anyone know where this is?
>
>yes,  0014, (warm engine)
>>
>>    Cold spark bias. Again, mapping in the ECM?
>
>yes, 0015
>>
>>This all pertains to the '747 ECM.
>
>So do my answers
>Bruce
>>BobR.

--





More information about the Diy_efi mailing list