ALDL Reported BPW
ECMnut at aol.com
ECMnut at aol.com
Sat May 13 04:17:23 GMT 2000
> Does "BPW" mean the *base* pulse width before all the corrections are
> multiplied in? IOW, does it just depend on the injector constant? The
> readings might make more sense then, but then the readings wouldn't change
> w/ changing inputs to the ECU that affect PW....???
>
Whadaya mean? We established that the 749 turbo code's
injector constant value is little more than a decoration.
I know there are other variables, but I was able to
impact PW from a these tables.
All 3 of these play directly into the final pulse width, and
return a value (via table lookup) in response to
to an ECM inputs (map, rpm, or both):
1) F29_TABLE Base Pulse VE vs RPM And MAP Table
("+10 to 15" in the high MAP regions did alot)
2) F30_TABLE Base Pulse VE vs RPM Table (slight impact)
3) F61_TABLE PE AF Ratio vs NTRPMX Table (slight impact)
I gotta get a decent scope. You're havin too much fun over there.
MV Still lean.. I think my Walbro pump is dying after approx 2k miles
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