mikel wrote:OK, you'll likely need a custom tune to address that.

Yes, last time Diablomatt solved the TOO LEAN problem of my GT500 simply by using the log I sent him. Maybe it's possible to do the same thing again.

No,
after O2

I take this old Topic for updates made on my GT500:
I installed the QTP CUT-OFF valves and now my GT500 is really very noisy :), the only problem is that by pressing hard on the accelerator the orange ECU light turns on and the errors are P0171 and P0174, too lean.
can you help me?

https://i.ibb ...

I'm from Italy, its a problem for ask help to your cmr tuners?

Hello,

my car is GT500 year 2007 with STEEDA CAI 114mm, Pulley 2.6" and Tuned with your Custom Tune 93 (see my old topic "07 GT500 STEEDA CAI...too lean")

I would buy the "Ford Performance Twin 65mm Cobra Jet Throttle Body" or maybe other Throttle Body 67mm.

Can you help me for have new tune ...

DiabloMatt wrote:this should fix it.

I've uploaded your last Custom Tune in my Shelby and now is very well without problems, for now.

Thank you!!

Have a news for me?

here you go. this should take care of it. 91 and 93 cold air intake and 12-14 psi pulley

I try Custom Tunes and are ok, but sometimes the orange light of the engine is turned on:
the error was P0171 for 91 octane and P0171 and P0174 with 93 octane.

Can you do something for resolve this problem ...

I will try soon.
Thank you!!

I have just installed the METCO PULLEY 2.60 IN. and I try to install the other right Tune, 91 octane - CAI + 2.7 STEEDA, but the engine is not working properly.

Then I install the old Tune you gave me last time and the engine now works well (91 octane - CAI Steeda).

Is possible have the right Tune ...

here you go. load this into the tool and load the "custom tune" into the car :)

I've uploaded your Custom Tune in my Shelby and finally the engine runs very well and clean, also it consumes less fuel, that is, as before installing the Steeda CAI, maybe now consumes even less. :P
I rode 60km in ...

I send you the file request.

Thank you!!

Hello, a few days ago I bought from the ww.americanmuscle.com these goods:
Tuner MPN # i2020 Item # 390009
Kit STEEDA CAI MPN # 555-3135 Item # 16164

So I installed the kit CAI and loaded the 91 octane CAI Steeda.
The engine of my car push hard and seems to be fine, but it often presents a ...