APEXL8T

As with many I will state some symptoms and what actions I have done and would appreciate any clear answers for a laymen.
Have 780 Prime and 1600 KG secondary. Installed 10/10 resistors in line on seconds.FPR is 40 @idle and does rise 1/1.Turbomark7 and I have the lag set @70.5 /03 to start.
I reset the .03'sto .01 and saw very little AFR change at idle and a little during driving.I dont want to go negative( from what I understand). My INJ.map (idle cells)is leand to 0.750 (4%inj duty) from 1.000 and then I put at 0.500 car stalled. Does the idle water temp/inj setting overide the INJ map? For some reason I am reading on the datalog watch that the TPR is .56.Would this influence the injectors to work.Should it be at zero? I will check today the TPS as per Chucks W instructions however.
Is there any way to verify that the LSU4/LM1 are 100% working order with themselves?I have calibarted several times and have been doing all this tuning based on the LM1.
Vacume is a strong 16/15. My turbo exhaust manifold is so red hot that it glows for 30 seconds after shut down in the day.My timing seems pretty smooth and only had a few high knock readings.This goes back to being able to set the inj. correct so that I get a good response when manipulating the INJ. at any cell location. Thanks
PS: I have new harness on order.....?????

fritts

iTrader: (5)

Water temperature, air temperature, fuel temperature, even map can be setup to change injector duty cycle with the pfc. The first 3 stock are changing the injector opening. I think you made too big of change in your injection map when you went from 1 to .5. I am assuming your talking lambda here. If you are talking the injection map values that is still way to big of a change. You should be around .85-.9 lambda at idle. Could you explain a little better what your changing, and if your are using lambda?

APEXL8T

Thanks Fritts for the reply,
Its the value designation of the injector map cell not AFR or lambda. 1.000 the starting point for the base map or percentage of the injector that is normal.
I must admit that I do not know off hand accept that 0.750 is what I can use. I assume it is 25% less than the 1.000 rate.
The AFR or Lambda is used only to tune by increase or subtracting from the 1.000 base percentage of that particuliar injector volume.
My 780 cc primary at 1.000 cell map denotes a starting value or injector percentage that I do not know.(I could just look at the Commander).
But I guess the bottom line is there something I am missing in regards to being able to reduce the injector value so I can lean it from 11.5 at idle?
The 780 cc primary at 0.750 is a 4% injector usage.
I submitted an example from another vehicle..I cant change my file format to post my actual fuel map.I know you know this but I am posting for this others.I am looking to raise my AFR by reducing fuel.

l8t

fritts

iTrader: (5)

I would still try lowering the amount to .7 or .65 and find where it starts to stumble and go from there. Also for some reason I thought that fuel pressure was supposed to be 40 psi at 0 boost/vacuum. So at idle vacuum at 15-17 inhg you should be at 3X psi not 40 psi. You may be running into to low of a duty cycle for the ecu to control. So lowering your fuel pressure, will require a high duty cycle which may clean up the roughness and allow you to lean it out. Remember the adjustment your making in that screen is just a percentage of the base map injector opening. Which you could use to calculate your theoretical duty cycle at a given RPM, before all the air, fuel, and water temp adjustments.

cewrx7r1

iTrader: (2)

Art,

I PMed you.

Chuck