bluedemon199

iTrader: (3)

any advice I cant seem to fix the idle I am running a 12.2-12.8 afr. new 02,TPS,no boost leaks. here is a log any advice?

RightSaid fred

You haven't listed the mods but fuel pressure is a universal mod failure problem.

bluedemon199

iTrader: (3)

mods are fully build. 272 cams, 2 450 fuel pump, DI intake, front facing dual waste gate turbo, buscher racing fmic, fuellab FPR. 2150cc injectors, small battery.

RightSaid fred

Well that explains that then.

What's the pressure at idle and low load?

bluedemon199

iTrader: (3)

talking about fuel pressure?

RightSaid fred

Fuel pressure.

It controls the AFR.

The computer has no idea what it is because there's no sensor.

2winscroll

That's pretty good for 2150's and gasoline, even e85 it's not bad. I had to reduce my timing some too get leaner AFR's at idle.

2winscroll

Are you running V7 tephra mods? If so knock down your timing idle correction to around 4~5 degrees this will help prevent hunting. Lower the base timing a few degrees in the idle load areas. If it idles to low you can increase your IAC counts in the look up table. Don't expect a steady 14.7 with those 2150's cause it ain't gonna happen.

2winscroll

If your really that worried about it you need to add this table to your rom and tune it to the 2150's. It's a PITA but once you get it dialed in it's sweet.

https://www.evolutionm.net/forums/ec...ion-table.html