Quote:
Originally Posted by vettestr
The fuel map is rich across its scale by a factor of 15 above stoichiometric. What are you looking for by going to open loop?
The engine is an alum. Dart gen 6, Pro One CNC'd 325 heads at 540 inches and 12.4 compression.
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Jeff,
I'm thinking the closed loop correction is your surge, so by leaving in open loop just as a test, and only if your fueling is at near stoich at cruise, go for a drive and see if the surge is gone.
This all assumes your A/F ratio is correct in the map.
Maybe your O2 sensor is "lazy".
Your engine is most certainly a bigger combo than I expected, bet it goes hard.
