What is DFCO?/COLD START?
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Joined: Jun 2001
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From: va.beach.va/usa
Car: 87 IROC (low 12's)
Engine: 400 sbc .040 over
Transmission: 700r mod
What is DFCO?/COLD START?
What does dfco do?And where and how do address cold start?
(thanks grumpy,you got me going on this question).
(thanks grumpy,you got me going on this question).
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From: Pasadena, MD
Car: '87 Camaro IROC-Z
Engine: 385 HSR
Transmission: 700R4
Axle/Gears: 3.42 posi
DFCO (Andrew's definition is correct) is when the computer shuts off the injectors (pulse width equals zero) when slowing down. There are several parameters that must be met for it to be enabled and several more to remain in DFCO, mostly relating to vehicle and engine speeds, LV8 or MAP value, and %TPS.
Cold start (I'm assuming you're talking about fuel) is addressed in the open loop %change to AFR tables (one vs. coolant temp, the other vs. LV8 or MAP).
Cold start (I'm assuming you're talking about fuel) is addressed in the open loop %change to AFR tables (one vs. coolant temp, the other vs. LV8 or MAP).
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92camaroJoe
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Aug 13, 2015 06:07 AM
