09blackmamba

I have an 09 v6 5speed with an SCT flash tuner... lately when I change the tune, I have problems. When I'm driving, if I am to put the car in neutral while still rolling, the RPMs will jump rapidly from 1k to 3k continuously... until you push the clutch in. I sent the tuner back, had it retuned, and still contiunes to do it (even in the stock mode), meaning it's my car and not the tuner. After a couple days of driving it, it will stop, until you change the tune... cleaned the trottle body today, no luck. Any suggestions???

Thanks!

JimC

I see in your list:

"BBK Throttle Body"

I think that answers your problem. A lot of people who have tried those have had the same problems you are describing.

09blackmamba

really? so maybe i should reinstall the stock throttle body...

its just so odd to me that it only does it only certain circumstances

JimC

That's what I would do - put the stock throttle body back on and see if the problem returns. My guess is that you won't see it again. If you do a search on the BBK throttle body you will find a lot of threads where people describe the same symptoms as you did.

aaquib1992

I would clean the MAF sensor while you're at it, you can get the cleaner at any autozone. And a few people have traced weird idle issues back to a dirty MAF sensor so it's worth a try.

I think brenspeed has a video tutorial on how to clean the MAF sensor on their website so you might want to check that out too.

09blackmamba

Alright ill try both those things and check back in, thanks guys

JimC

Try one at a time - that way you know which was the cause. If you do both (return to stock throttle body and clean the MAF) you won't know what fixed it.

I would do the throttle body first since the BBK is known to cause problems.

09blackmamba

Will do

Nuke

Remove the TB spacer, PLEASE!
Replace the BBK TB with the OE TB.

Who is writing your tunes? Are they the canned tunes from SCT? Ughhhhh.

SoIL Mustang

Have you properly reset your car's ECU since installing the throttle bodies. I made that mistake, and after resetting the ECU the car idled like brand new, no more surging.