TB, CAI, it doesnt matter, he needs a tune before he runs either of those. His car is running lean and that is what is causing his car to go into fail safe. It is probably a combonation of both the CAI and TB. K n N does not "require" a tune, but it still leans out the car a bit. Adding the TB most likely just leaned it out way too much.

 

you do not need a tune for a TB

 

I wouldnt say you do not "need" a tune for a TB. I would say it is not "necessary". Anytime you are increasing air flow to your heads you are leaning out the motor. A tune compensates this and richens up the a/f. His TB, and intake,are moving much more air then his stock airbox and TB were. His motor is running lean, i will bet anything on it. Only a tune is going to balance this out and stop him form going into fail safe.

 

BBK offers 2 different twin 62mm TB
1763* Twin 62mm 05-07 GT Mustang throttle body
1705* -Twin 62mm 4.6 4-V Throttle Body (1996-2002 Mustang Cobra/V-10 1997-2002 F-Series & Excursion)

Make sure you got the right part #

 

yeah your pushing your luck with a tb with no tune. All shops I've talked to said dont get it unless your gonna tune your car

 

I dont think that the tuners (Doug, brent or Justin) makes any changes for them though, that is why I stated you dont need a tune.

 

good point maybe a custom tune would be ness

 

He doesn't need a tune for either of those parts. There is a problem somewhere, be it an electrical connection , loose clamp, cracked hose, etc. Take the intake and tb off and start over. There is clearly a problem - not a tuning issue. There are way too many ignorant people around here that think the magic little plug-in box cures everything. I wonder what half the kids driving these cars would have done 10 or 20 years ago when there were carburetors and no ****ing Diablosport and SCT.

 

If you know anyone with an OBD reader have them check for the code that is getting thrown. I would agree to look at the TB.

 

Also check out this thread:
https://mustangforums.com/m_833261/tm.htm