---===The Official MAFT-Pro Thread===---

[TurboBob]

also at idle, if the O2s are not toggling, rev the engine and then watch the O2 trim when the engine returns to an idle. If the O2 trim climbs, the idle tune is too lean, if it falls (from 100) then its too rich. If the idle trim is too far out, the ECU tried to toggle, and then gives up and picks an open loop idle setting.

B

[DriveFast99]

Originally Posted by TurboBob

also at idle, if the O2s are not toggling, rev the engine and then watch the O2 trim when the engine returns to an idle. If the O2 trim climbs, the idle tune is too lean, if it falls (from 100) then its too rich. If the idle trim is too far out, the ECU tried to toggle, and then gives up and picks an open loop idle setting.

B

ok. now wall 3 trims are at 100, at idle. and when i rev the car my o2 trim goes up a little while rpms increase, then drops to 80 then when its back at 800rpms and idling the o2 trim goes back to 100. is that what its supposed to do?

[TurboBob]

sounds like the loop is open at idle. Keep an eye on it, and let me know where the trims go.....

Bob

[DriveFast99]

Originally Posted by TurboBob

sounds like the loop is open at idle. Keep an eye on it, and let me know where the trims go.....

Bob

trims are now as folowed. Low- 102%, Mid- 103%, High- 96%, o2 Trim- 96-102%(at idle) 100-115% (crusing)
i think this is the best tune i hae had on my car in a long time.

[TurboBob]

Originally Posted by DriveFast99

trims are now as folowed. Low- 102%, Mid- 103%, High- 96%, o2 Trim- 96-102%(at idle) 100-115% (crusing)
i think this is the best tune i hae had on my car in a long time.

excellent

[Highboosted]

Just in for an update.....How is everyone's low RPM, part throttle drivability for those who are speed-density? I know in my Ford switching from speed-density to mass air made a big improvement in drivability, but thats a different case.

[DriveFast99]

Originally Posted by Highboosted

Just in for an update.....How is everyone's low RPM, part throttle drivability for those who are speed-density? I know in my Ford switching from speed-density to mass air made a big improvement in drivability, but thats a different case.

mine has been fine eversince i got my tune in order. it used to be horrible, know i have no problems.

on a side note how do i instal my wideband? i lost the original papers that came witht he pro, and know i have know idea what to install to wear and all that good stuff.

i have 2 purple wires that have not been installed that hang from my pros connectors. doesnt one go to a ground in the ecu and one run to the wideband? and where does my aem wideband output signal tap into the pro? and what do i set the pro to for the aem wideband? basiclly i need every possible instruction for the pro and installing the wideband. thanks

[KILURV8]

Hey Bob, any idea when the timing control is coming?

[Barefoot]

Originally Posted by Highboosted

Just in for an update.....How is everyone's low RPM, part throttle drivability for those who are speed-density? I know in my Ford switching from speed-density to mass air made a big improvement in drivability, but thats a different case.

it used to be very bad.. i had to richen the hell out of everything to make it go away. even then i still had problems, but since i cut my narrowband o2's it hasnt been a problem.. i still run rich as hell, and could probably work everything out but am too lazy to do it right now.. lol

i will be installing a new engine with 14b's within the next few months, hopefully i wil have everything worked out after that!

[TurboBob]

Originally Posted by KILURV8

Hey Bob, any idea when the timing control is coming?

working on it this month.


BTW, my tune is very smooth and driveable. I am still running 360's but will be putting my 450's in this spring. My tune info is attached.

Bob