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I do have an aftermarket MAF tube and cold air intake. I adjusted my MAF curve and my low slope and it is running MUCH better. Thank you for the tips everyeone! I ordered an AFR gauge and I am going...

ugh.. no, I never tried that and I know this is now a lesson learned because I no longer have my stock injectors. I am going to increase the slopes though since running rich seems to be major issue...

I want to ask one more question. I am ordereing the AFR gage. But I would like to know if there is a way I can nudge the settings and retest. The car is running rich. I smell fuel in the cabin area...

Thanks! -M

I know it has to be running rich at this point.. Not sure how to dial it back a notch. MAF spiking during the backfires. Jumping to over 7 & 8lb/min when it backfires.

DOH!!! :-/ Anyone feeling adventurous enough to look at the scanner file and offer an opinion? LOL Occurs on rev. First one at 1:00:57 in.

91903

Thanks for the info. I suspected injectors initially after some poor per performance issues. Significant hesitation on acceleration. MPG drops. No ECU faults though. No missfires, etc. I checked for...

They sent this over, but it looks a bit light compared to what I have seen from others. Would this be enought to get my vehicle running again?
91891

That calibration summary is not for my injectors. Someone suggested that as a starting point. The information that WAS provided was in my original post but I am not sure how that applies to the tune....

Hi- I am having problems understanding how I should be tuning my 09 Mistang GT 4.6 V8. I Replaced my injectors with some aftermarket injectors and the tech data I was provided is:

30lb Fuel...

Absolutely! Thanks!

I had some performance problems on the injector side of the fence. Ultimately I did make the decision to replace them altogether. So far everything is OK with one exception, the mileage is totally in...

Gotcha! Thanks!! I may just purchase new injectors from Injector Dynamics. I am hoping that I can get these to limp along and stop drinking gas like a Slurpee until I can replace them.

Thanks for the reply. So basically I'm screwed unless I purchase another set of injectors to replace the set I just bought and installed?

Hi everyone, Although I am pretty handy with a wrench, I want to learn more about tuning. I have the injector specs that I installed in my '09 Mustang GT 4.6l V8. I was hoping someone might be able...