Car shuts off!!!
#1
Member
Thread Starter
Join Date: Aug 2002
Location: Rio grande Valley, Texas
Posts: 346
Likes: 0
Received 0 Likes
on
0 Posts
Car shuts off!!!
I have an 88 GTA with the L98 TPI 350, 700 R 4, ported plenum and a superchip...well sometimes when I open it up and let the engine scream I let it go up to about 2nd gear and at about 4700 rpm i let off the gas and it turns off...why does this happen...AARON
#3
Member
Thread Starter
Join Date: Aug 2002
Location: Rio grande Valley, Texas
Posts: 346
Likes: 0
Received 0 Likes
on
0 Posts
Actually I don't really know to much about TPI motors, this is about the 6th day I have had the car....if you can please let me know how I can do that..THANKS....AARON
#4
Supreme Member
Join Date: Apr 2002
Location: Austin
Posts: 1,353
Likes: 0
Received 3 Likes
on
3 Posts
Car: 82 Z-28
Engine: 383 TPI
Transmission: 700R4
The IAC (idle air control) is what normally controls idle speed by bypassing air past the throttle plates.
If the IAC closes all the way, the idle speed is then controlled by an adjustable stop that keeps the throttle from closing completely. It's just like the idle speed adj for a carburated eng.
Different fuel inj systems use different methods for closing the IAC to set the min idle.
I'm in the process of building my first TPI eng, so I don't know exactly how it's done on a TPI.
On my CrossFire system, shorting the ALDL connections closes the IAC(s).
I'm sure a search will turn up some info for ya.
If the IAC closes all the way, the idle speed is then controlled by an adjustable stop that keeps the throttle from closing completely. It's just like the idle speed adj for a carburated eng.
Different fuel inj systems use different methods for closing the IAC to set the min idle.
I'm in the process of building my first TPI eng, so I don't know exactly how it's done on a TPI.
On my CrossFire system, shorting the ALDL connections closes the IAC(s).
I'm sure a search will turn up some info for ya.
Thread
Thread Starter
Forum
Replies
Last Post
Linson
Auto Detailing and Appearance
40
08-21-2015 02:12 PM
db057
TBI
10
08-11-2015 10:11 PM