Brent Dalton

iTrader: (31)

Well, I finally got my car started today after almost a year of building it. It turned out that I had a bad PFC. Anyhow, I took the PFC out of my other FD and put it in this one and it started right up.

Set up:
-T78 Single Turbo
-"Large" Street Port
-550/1600 injectors
-BUR9EQ plugs
-straight through exhaust(but midpipe has borla XR1 welded in)
-Power FC
Lots more mods, but I think those should be the important ones.


Now it is idling around 3000rpm's and I don't know why. The air bleed screw on the bottom of the throttle body is all the way in and then backed off half a turn as Chuck Westbrook reccommends. I have disconnected the throttle and cruise cable and it does not change anything. I have backed out both idle adjustment screws on the front of the throttle body and no change. Power FC idle setting are standard. The PFC is running the base map with no modifications(I will load another map before I drive it with boost) I'm sure I have some vaccuum leaks that I will be sorting shortly, but that should only take my idle to 1600-2000 at the most according to David Jerome... who has helped me greatly throughout this whole song and dance. I prob. call him more than I do my girlfriend... haha. BTW, I did check the brake booster hose.

The turbo manifold is also glowing red/orange. I'm assuming it's because of an extremely rich condition. I originally had my fpr set to high and I think that had something to do with it, but after I adjusted it down, it was still red. Any ideals? I thought the timing might be retarding too much, but it is the base map from the PFC and I am 100% sure the spark plug wires are connected correctly
Just thought I'd see what you guys thinks. Thanks.

Brent

jamespond24

iTrader: (13)

Look like you got a bad vaccuum leak. Spray carb cleaner around the gasket and when the idle goes down that's where it's leaking. GL with your finding.

Brent Dalton

iTrader: (31)

Already done that, no dice. My vaccuum lines are a mess though. I'm pulling up my diagram and going to square them away tomorrow as I do have a couple of small vacuum line leaks

Chadwick

iTrader: (12)

Check to make sure the secondary’s on the throttle body are closing all the way.

Dan

mast3rjasp3r

what should it normally idle at??? If it's healthy

Brent Dalton

iTrader: (31)

stock idle is 750rpm

DaveW

At 3K RPM idle, I think glowing red would be normal, no matter what the mixture. That should go away when you get the idle speed down.

With a large street port, IIRC, idle should be ~800-1000 RPM.

Dave

aaron1017

When I had a high idle, it was my throttle body plates not closing all the way.