Hey Guys,

I recently installed a set of ID1000 injectors. I started scaling with some numbers I found in the massive injector scaling thread and adjusted from there. I have my LTFT Idle and Cruise both near +/-0% while driving steady for 20mins or so.

Now... When I come into boost at low throttle the car is very rich, but on the under full throttle the car is running on the leaner side. Is this still something I should be playing with the deadtimes on? OR is this something I would tune out elsewhere?

Pretty much the settings on the forums worked, but I had to increase the injector scaling about 8% and didn't touch the deadtimes. The car was tuned pretty well before on the stock system, but with installing the new injectors - will I have to re-scale the MAF?

Thanks!

 

By deadtimes are you referring to the injector latency vs battery voltage? If so you should probably adjust these. I think FIC injectors come with a sheet that gives you what it should be.

That could also explain why you had to go 8% higher.

Frankly, I recommend MAF tuning for any car with a change to the intake (pre turbo) or a major fuel system change. That should be your last step though.

Either way your injectors simply won't run the same as the factory ones. It may be close, but a re-tune of the fuel tables is almost always recommended (especially if your WOT AFR is leaning out).