bobs30thta

how do I pass emissions If I fail by running to rich What can I do to make it pass.It has a heads and cam ,Cam is a .581 lift. Thanks in advance bob.

bobs30thta

ttt please

slow ride 02

Try to lean it out with a tune. One guy put about 75% alky in the tank to lean it out. Try at your own risk.

vaticano

iTrader: (8)

I just changed the DFCO settings so that even at low speeds and MAP when I let off the gas peddle it will cut off the fuel. I also lowered the amount of time, it needed to be in an activation state, before it activates. I'll check and post what I did.

vaticano

iTrader: (8)

This is from EFI Live so some names may be different.
Everything is from the DFCO section in Fuel, Engine Calibration

Parameters:
Re-Enable Timer: 1
M6 Temp. Enable: 150 F.
M6 RPM: 800
M6 MAP: 85 kpa This specific for my altitude sea level would 105kpa
M6 TPS: 10%
M6 SPEED: 1 mph
TEMP. Enable 150 F.
Vehicle Speed Hysteresis 1.00
RPM Hysteresis 1
Map Hysteresis 1

section
DFCO Vehicle Speed Enable
(GM.Baro) Psi. Value Mph
9.4 ---------------10
10.9 --------------10
12.3 --------------10
13.8 --------------10
15.2 --------------10


section
DFCO Throttle Enable
800-8000 rpm value = 10% Tps You don't need to go to 8000 rpm, maybe 4500

section
DFCO RPM
Enable/Disable Activate/Deactivate
900 rpm 800 rpm
Use these values for all fields, again not necessary for areas where they wont test ie. 6th, 7th, 8th gear, not in gear, and reverse.


section
DFCO Map
Enable/Disable Activate/Deactivate
65 kpa 60 kpa
use these values for 60-100 kpa (GM.BARO)
These are also altitude specific, if you are below 5800 ft. these can be increased. I got these values by logging decel, Throttle closed, to stall speed.


Hope this helps. Good Luck

bobs30thta

thank you