Nistune Forums

I have just installed GTR injectors over the weekend. Had a very hard time starting the car after i re-sized the injectors in NIStune. Tested resistor pack, fuel pressure to rail would not start. Pulled CAS out and turned over with ignition on to check injector pulse which was fine and then it started an ran fine (slightly lean at 16 on wideband) but when i turn it off and try to start again it wont untill i pull CAS out and wind it over a little. Seems as if it is not getting enough fuel on start up. The car ran fine before installing injectors has plenty of gas and battery voltage... Any help would be much appreciated as i have to tow my car an hour out of town to get a tune on Wednesday.

Check injection multiplier is currently around K=156 (444CC)

Did you tick 'cranking tables' when doing the resize?

Seems to be starting better now, rung my tuner and he said to change latency to 770 and k constant is a little higher at 175 and starts a lot better. We will see how it pans out tomorrow... thanks for all the help anyway!