Diablosport Forums

I have a 2006 Mustang GT with Magnaflow exhaust and X pipe and Modular Mustangs Cold air intake and eng light came on Checked. It has a lean code. I ordered a Diablo sport Tuner installed the 87 Upgrade tune eng light went out then back on still lean code. PO171 and PO174 lean code and P1000. How can I fix this so that I can run the cold air intake???? Please help!! I love the power but don't want to run engine lean.

Can I change the fuel air mixture? And If so how please explain never done this before.Installing the tune was easy.

Thanks,
Richard

Richard, I believe we spoke yesterday, if not repost and let me know.

Thanks

I also am having the same problem if you have a solution please post so we dont have to call and bug you !!

I fixed mine by changing out the cold air intake after talking to Mike at Diablo sport. Thanks for all the help. The car runs great with the 91 octane tune and the cold air intake and 3:73 gears runs 13.5 in 1/4 mile no other mods very happy with that from a street car and very few mods.

i have an 02 lightning with a diablo sport predator ,cat back magna flow exhaust and a steeda cone type air cleaner . the check engine soon light came on and when i checked the code it read po171 system too lean bank 1. what does this mean and what should i do thank you esyrydr

esyrydr wrote:i have an 02 lightning with a diablo sport predator ,cat back magna flow exhaust and a steeda cone type air cleaner . the check engine soon light came on and when i checked the code it read po171 system too lean bank 1. what does this mean and what should i do thank you esyrydr

Send me your last tune written. It may be a bad sensor but I want to chekc out the tune anyway.