Tweaked Map for Clutch Switch Mod

avc8130

Active Member
Joined
Jan 29, 2012
Messages
3,269
Location
North NJ
protondecay123 said:
I think that the PCV screws with the onboard MPG calculator some how. At one point it read 51 mpg and when I filled up it was 40.5? WTF? I'm doing the MPG by hand at the pump these days to get it right.
The last fillup with the 0.1 transitions I averaged 36.7mpg but was doing Interstate at 80 mph. I'm back to my regular commute this week and will see how that goes.

Jaxon, I just texted you my Trims and AFR's. I'll post them here as well.
I don't have a PCV, but I can guarantee your MPG readings at the gauge are garbage now.

The PCV adjusts fuel injector pulse width AFTER the ECU. The PCV is increasing the pulsewidth to increase fueling. The ECM has NO IDEA this is happening. The MPG on the dash is calculated using the stock fuel maps/ECM control.

Hand calc is the only reliable way to determin MPG now.

ac
 
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