Accufab Throttle Body Help Please

[Jim Wilson]

I just installed new Accufab throttle bodies (70mm) and now my idle stays around 1800 rpm's. Any ideas what is causing the high idle?

At idle, both TB's are at their fully closed position and there is no binding or hanging of the linkage. I am running a paxton blower, and it idled fine before with the stock TB's.

 

[DVS_V10]

has you reflashed your ECU for this mod. not that you should have to but with the blower it might be worth checking into.

 

[99 R/T 10]

Hey Jim,
JD put up a post a while back about the Accufabs. Check it out:
http://www.viperalley.com/forum/vip...fab-throttle-bodies-if.html?highlight=Accufab

apparently the Accufabs are known to have the screw heads that hold the butterflys pop off after a while. I would change them out now.

It doesn't address your problem, but might help to avoid a future problem.

Mike

 

[GeneralLee]

I too am having the exact same problem. No blower though. Idle stays at about 1800.

 

[Joseph Dell]

the idle issue is an adjustment issue. but if you manually muck w/ the adjustment, accufab won't warrantee the TBs anymore. call them and see waht they have to say. that's your best bet at the moment.

 

[Knight Viper]

My Accufab 70mm were idling a little high (around 1300) when I installed them with a Roe setup. I disconnected the IAC harness and backed the set screw out 1/2 turn waited about ten minuets then reconnected the IAC and now it idles around 650 but sometimes it will swing (500-1000). I believe the pcm is supposed to control the idle through the IAC but if it's getting too much air or the IAC is stuck it will not come down

 

[GTSnake]

I guess I'm pretty lucky then. I have 70mm TB's on mine and it idles like it was stock.

 

[Jim Wilson]

Got it fixed. The problem was the tab that is on the drivers side throttle body; that goes in the TPS sensor, was too wide. It would stick in the sensor, thus it would not allow the sensor to return to idle. I ground both sides of the tab down with a dremel to provide clearance. It works fine now.

 

[ViperJohn]

Glad it was something simple.