You want it to be .99volts nothing above with the TPS.

Did you set the idle with when you installed it?

http://www.mustangworld.com/ourpics/fcar/mwtb.htm

 

P.S. Did I mention that its throwing the code P1506 Idle speed control aux inputs? That it is. Anyone have this problem?

 

Well I went to Austin with a few buddys and it threw like THREE codes! Pedal positioner high voltage then a low voltage and then the same old P1506. LOL Im gonna fool around with it some mre tomorrow and if it doesnt get right then im gonna have to take it off. [&o][]

 

I put the accufab 70mm on monday. and my car still wont idle right either. I asked and was told to wait, so i waited. I guess ill wait somemore

 

Have you thrown a code? What im going to do tomorrow is crank it up and let it get warm... then im going to disconnect the Air bypass plug connector and set the idle at 500, then plug it back in and see what comes of that.

 

i havnt done anything to it. i was told to wait. the funny thing about it is, my check engine light is actually off. It was on for a month and when i put the TB on it just went off. I havnt got a clue whats going on

I gotta poll im about to post i would take great consideration to what you and mvd think about it

 

Mine has come on and off also. Its really getting to me though.

 

I know what your talking about that little light just gets on my damn nerves. It came on the other day after I changed my oil. It scared the crap out of me. I thought I screwed up and didnt put enough in or something. Im buying one of those decoder things asap.

PS JD just for future reference, what is your rpms @70mph with the new gears im in the market for some 390s or 410s thanks

 

At 70mph they're at 2400 and at 80 they're at 2750-2800.

 

Well I went out today and trued the air bypass trick and the damn thing wouldnt even idle down below 900!!! I tries and tried to get the linkage to give and it wouldnt what so ever. The install says that you disconnect the air bypass and it should either idle down really low to the point of the car shutting off or it should idle up high. Mine did neither. It just idled normally. So I tried to get it to 500 rpms and it was a no go! Im gonna wait a bit longer but I really dont thing its gonna fix itself.