TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

1988 IROC dies everytime I put the car in D or Reverse

Thread Tools
 
Search this Thread
 
Old 07-20-2011, 10:17 AM
  #1  
Junior Member
Thread Starter
 
SEBLS1's Avatar
 
Join Date: Mar 2009
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
1988 IROC dies everytime I put the car in D or Reverse

Im not sure where to post this at. I posted in Engine Forum & then saw there is a TPI Forum.

Im new to the board. But a lover of the 3rd gens. I have been restoring my 1988 IROC for the past 5 years & bringing it back to life. Bought the car for a $1000 as a roller with the motor & trans out of it & the Engine harness ripped out.

Now after about $4000 in labor & parts the car runs. But doesnt run great! The motor was completely rebuilt & ordered new Engine Harness from Painless & had it installed by Painless Wiring in Fort Worth along with having the injectors flowed & cleaned & also with new fuel pump & flushed the stock gas tank out of all the junk in it from sitting for almost 6 years now

Really want to get this beauty back on the road & use it as a daily driver. Any tips would be appreciated. I am located in Dallas if anyone knows a TPI guru in these parts
Old 07-20-2011, 11:21 AM
  #2  
Supreme Member
iTrader: (6)
 
evilemokid94's Avatar
 
Join Date: Aug 2009
Location: Elwood, IN
Posts: 3,670
Likes: 0
Received 3 Likes on 3 Posts
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 1988 IROC dies everytime I put the car in D or Reverse

its ideling to low when you put it in gear it stalls out
Old 07-20-2011, 11:43 AM
  #3  
Junior Member
 
brewer1862's Avatar
 
Join Date: Apr 2010
Posts: 18
Likes: 0
Received 0 Likes on 0 Posts
Car: 1990 rs, 1989 rs
Engine: 383 blueprint crate, 305 tbi
Transmission: 700r4, t56
Axle/Gears: 3.73, 3.23
Re: 1988 IROC dies everytime I put the car in D or Reverse

on my 90 rs with 305 tbi it was doing that for a while, checked the fuel pump, fuel filter, spark plugs, wires. then took off my distributor cap, and the inside of my cap was all melted, changed the cap, then it ran fine. maybe thats your problem?
Old 07-20-2011, 11:49 AM
  #4  
Junior Member
Thread Starter
 
SEBLS1's Avatar
 
Join Date: Mar 2009
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Re: 1988 IROC dies everytime I put the car in D or Reverse

Originally Posted by brewer1862
on my 90 rs with 305 tbi it was doing that for a while, checked the fuel pump, fuel filter, spark plugs, wires. then took off my distributor cap, and the inside of my cap was all melted, changed the cap, then it ran fine. maybe thats your problem?

I will give it a look see, This motor was just put in. But all the parts on it have been sitting for 5 plus years IE: like the runners & intake & Dist itself. I think the cap is new though.


Evilmoked94 what can I do to keep the motor idle higher when I put the car in gear
Old 07-20-2011, 01:06 PM
  #5  
Senior Member
 
86T/A_Ram_Air's Avatar
 
Join Date: Mar 2009
Location: Brick, NJ
Posts: 870
Likes: 0
Received 0 Likes on 0 Posts
Car: 91 Trans Am
Engine: 355 TPI
Transmission: Built T-5
Re: 1988 IROC dies everytime I put the car in D or Reverse

may need to adjust the IAC
Old 07-20-2011, 01:18 PM
  #6  
Junior Member
Thread Starter
 
SEBLS1's Avatar
 
Join Date: Mar 2009
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Re: 1988 IROC dies everytime I put the car in D or Reverse

Originally Posted by 86T/A_Ram_Air
may need to adjust the IAC
Ju got off the phone with Painless and the Guy who did the wiring and it has all new rotor and cap with wires and sensors! He suggested bring the idle up and run some high octane through it and said the these injectors have a tendency to lock up.
Old 07-20-2011, 01:21 PM
  #7  
Senior Member

 
lunati397's Avatar
 
Join Date: Mar 2004
Location: Clovis NM
Posts: 773
Likes: 0
Received 0 Likes on 0 Posts
Car: 2012 F350 lariot/1991 Camaro RS
Engine: Powerstroke/6.0
Transmission: 6R100/4L80e
Axle/Gears: 3.73/3.42
Re: 1988 IROC dies everytime I put the car in D or Reverse

when injectors are flowed or new they are very prone to seizing up just run some injector cleaner and check you idle maybe bump it up some
Old 07-20-2011, 01:43 PM
  #8  
Supreme Member
iTrader: (6)
 
evilemokid94's Avatar
 
Join Date: Aug 2009
Location: Elwood, IN
Posts: 3,670
Likes: 0
Received 3 Likes on 3 Posts
Car: 1986 camaro Sports Coupe
Engine: L31 350
Transmission: 89 700R4
Axle/Gears: 3.42 gov lock
Re: 1988 IROC dies everytime I put the car in D or Reverse

Originally Posted by 86T/A_Ram_Air
may need to adjust the IAC
agree or recheck that he set your TPS correctly.

IAC is idle air control
and TPS is throttle positioning sensor
Old 07-20-2011, 02:29 PM
  #9  
Junior Member
Thread Starter
 
SEBLS1's Avatar
 
Join Date: Mar 2009
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Re: 1988 IROC dies everytime I put the car in D or Reverse

Originally Posted by evilemokid94
agree or recheck that he set your TPS correctly.

IAC is idle air control
and TPS is throttle positioning sensor

This all makes sense & same advice he gave me. Just wanted to confirm it & get any other ideas of where I should check. He said it has a new pick up coil also too!
Old 07-20-2011, 02:58 PM
  #10  
Member
iTrader: (3)
 
G-reg's Avatar
 
Join Date: Aug 2006
Location: Manitowoc, WI
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
Car: 90 Camaro
Engine: 350 tpi
Transmission: t56
Axle/Gears: 4.10
Re: 1988 IROC dies everytime I put the car in D or Reverse

What RPM is it idling at?
Old 07-21-2011, 10:56 AM
  #11  
Junior Member
Thread Starter
 
SEBLS1's Avatar
 
Join Date: Mar 2009
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Re: 1988 IROC dies everytime I put the car in D or Reverse

Originally Posted by G-reg
What RPM is it idling at?

It barely will idle at all. Car feels solid under load. But I think you guys are right. I need to bring the idle up
Old 07-22-2011, 09:15 AM
  #12  
Junior Member
 
brewer1862's Avatar
 
Join Date: Apr 2010
Posts: 18
Likes: 0
Received 0 Likes on 0 Posts
Car: 1990 rs, 1989 rs
Engine: 383 blueprint crate, 305 tbi
Transmission: 700r4, t56
Axle/Gears: 3.73, 3.23
Re: 1988 IROC dies everytime I put the car in D or Reverse

yeah i had that problem with my tbi 305 when i first bought it, replaced my tps, and it ran fine, just had to adjust it to get it to idle right.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jhawkeye
Engine Swap
5
05-25-2022 06:33 PM
Wade787b
TPI
2
09-29-2015 01:15 PM
mustangman65_79
Body
3
08-11-2015 03:17 PM
hokis
Transmissions and Drivetrain
9
08-09-2015 03:57 PM



Quick Reply: 1988 IROC dies everytime I put the car in D or Reverse



All times are GMT -5. The time now is 10:24 AM.