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From a cold start it runs 12 on AFR. I drive it down the street and when i slow down it stalls. It has new plugs and good fuel pressure. Im thinking about just having roush reflashing the computer. I...

I have added a couple things but it was still running fine after they were added

i have a 06 roush mustang that was tuned with hptuners a few yrs ago but now the car runs like crap. trying to find someone in the el paso texas area that knows how to tune mustangs with hptuners.

i think the quick and easy way to fix your problem is to just pull the cumputer from your car and have ford flash it to stock.

i have a o6 roush mustang, v8, 4.6L, with roush supercharger. i have a 2.57 after market supercharger pulley but don't have enough experice yet to tune for the new pulley. i have asked in a previous...

it sounds like you did a pretty good job on tuning a mustang. do you have some experice on tuning fuel injected cars. i have had my hp tuners for a few months but have not made any changes on my car...

I already did that stuff in the demo even before i post this thread. i even searched the forums but still have error problem

i hook up the programmer to the car and have the car running. i hold the record button for a couple secends but flashes error light on the programmer.

I had my pcm flashed back to stock and have no problem reading the pcm. But you will still get a check sum error which is normal.

I have a 06 supercharged roush mustang.

The check sum error message will come up even if you have the stock tune in the ecm. i did have a problem being able to licensing the tune i read from my ecm.

I have a 06 roush mustang, v8 engine with roush supercharger.

i have the hp tuners for my car but not sure what primeters to mess with on my car for CAI, a smaller supercharger and just a better tune. i have a friend that knows how to work the hp tuner on the...

looking for a stock 06 mustang v8, 4.6l tune. i have roush supercharger