MXXN
New Member
- Joined
- Jan 15, 2007
- Messages
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This is quick and dirty but what i got going on is my truck has started to run about a point leaner then previously while under boost. It seems to be running about .4 of a point richer will at idle and under normal driving.
What changed...well I hooked up to the FTC, created a new customer and pulled the current map. I just eyed over it and then burnt it back to the FTC. Now instead of running under boost around 11.3-11.5 on my XD I am running more around 12.3-12.8. Under part throttle boost I am more in the area I need to be.
A couple question based off of the U-tune guide.
1. When setting up your settings your instructed to choose programmable signal calibrator not aux. injector. Is this correct for the URD SC system? I got to second guessing myself since i had made adjustments back at the beginning of the summer and got the result I was looking for. I save that map and I am sure I used sig calibrator as my selection but then started second guessing myself that maybe that was for the Maf calibrator.
2. Poking around it looks like I can do an output test of Inj A and Injector B I was wonder if its a pulse test or if it will be a constant that you can use a digi multimeter to test to verify output. If it s a pulse I will acquire an LED test light depending on the pulse speed a dig multi meter might not pick it up fast enuff.
3 Looks like you can shut off the aux injectors. Is there a way to see if it is "on" thru the R4 controller software? I would guess Inj. A would be used on the URD set up?
4 Looks like the u tune guide was based of the TRD Blower for the 5vz. I received my FTC with the entire vacuum fields set to "0" rather then closer to the recommend "10" area and ajusted from there. My fuel trims are exceptable but could be a lil better. My boost field starts at .5psi at .4 value and increase approx .5 of a point up thru the boost range. At 7psi I am at a 7value, 7.5psi a 7.5 value. I wounder how this compares with others?
After the lean issues I started inputting higher values in small increments. Half a point should make a difference. I then jumped 2 full points just to get extreme. I burnt the maps back to the system both times and neither gave me any differences. I am still to lean. I am only a point leaner and i thought that under boost (say7psi) the truck wouldnt keep up that well if the aux inj wasn't firing. It seams like the injector isnt working. Fuel PSi is normal and I couldn't find any intake leaks. I am pulling about 21-22" of vacuum at idle
I'll leave it at this and take any input I can get.
What changed...well I hooked up to the FTC, created a new customer and pulled the current map. I just eyed over it and then burnt it back to the FTC. Now instead of running under boost around 11.3-11.5 on my XD I am running more around 12.3-12.8. Under part throttle boost I am more in the area I need to be.
A couple question based off of the U-tune guide.
1. When setting up your settings your instructed to choose programmable signal calibrator not aux. injector. Is this correct for the URD SC system? I got to second guessing myself since i had made adjustments back at the beginning of the summer and got the result I was looking for. I save that map and I am sure I used sig calibrator as my selection but then started second guessing myself that maybe that was for the Maf calibrator.
2. Poking around it looks like I can do an output test of Inj A and Injector B I was wonder if its a pulse test or if it will be a constant that you can use a digi multimeter to test to verify output. If it s a pulse I will acquire an LED test light depending on the pulse speed a dig multi meter might not pick it up fast enuff.
3 Looks like you can shut off the aux injectors. Is there a way to see if it is "on" thru the R4 controller software? I would guess Inj. A would be used on the URD set up?
4 Looks like the u tune guide was based of the TRD Blower for the 5vz. I received my FTC with the entire vacuum fields set to "0" rather then closer to the recommend "10" area and ajusted from there. My fuel trims are exceptable but could be a lil better. My boost field starts at .5psi at .4 value and increase approx .5 of a point up thru the boost range. At 7psi I am at a 7value, 7.5psi a 7.5 value. I wounder how this compares with others?
After the lean issues I started inputting higher values in small increments. Half a point should make a difference. I then jumped 2 full points just to get extreme. I burnt the maps back to the system both times and neither gave me any differences. I am still to lean. I am only a point leaner and i thought that under boost (say7psi) the truck wouldnt keep up that well if the aux inj wasn't firing. It seams like the injector isnt working. Fuel PSi is normal and I couldn't find any intake leaks. I am pulling about 21-22" of vacuum at idle
I'll leave it at this and take any input I can get.
