Big problems. seems like no injectors work on the passenger side.
Thread Starter
Member
iTrader: (1)
Joined: Feb 2007
Posts: 108
Likes: 0
From: Frankfort,Il (Chicago)
Car: 1989 Iroc Z28
Engine: TPI 5.0
Transmission: 700R4
Axle/Gears: Stock
Big problems. seems like no injectors work on the passenger side.
I replaced the IAC and TPS recently and put on SLP runners. Now the thing runs like it's a 4 cilinder. I am having a hard time adjusting the IAC.
I pulled off the ingetor plug on the driver side and the car ran worse, so that means to me like those are working. I pulled off all the top parts of the injectors for the passenger side and the motor did not run any different. It seems like it is choking and not getting enough something. I also tried to adjust the trans cable and that made the car loose its power when you hit the accelerator, it does not do the normal down shift. Do you think the injectors are bad all asudden. or do you think it is the IAC. I am ready shoot the car, please help.
I pulled off the ingetor plug on the driver side and the car ran worse, so that means to me like those are working. I pulled off all the top parts of the injectors for the passenger side and the motor did not run any different. It seems like it is choking and not getting enough something. I also tried to adjust the trans cable and that made the car loose its power when you hit the accelerator, it does not do the normal down shift. Do you think the injectors are bad all asudden. or do you think it is the IAC. I am ready shoot the car, please help.
Supreme Member
Joined: Oct 2006
Posts: 1,974
Likes: 0
Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: Big problems. seems like no injectors work on the passenger side.
sounds to me like you screwed something up when you took off the "top parts of the injectors".... the IAC wouldnt cause one bank to stop firing nor the tps... so what did you touch when you put the slp runners on? and what did you adjust in the process
Senior Member
Joined: Jan 2007
Posts: 382
Likes: 0
From: Illinois
Car: 89 Firebird
Engine: 350 Ramjet
Transmission: 700R4
Axle/Gears: GM 9 bolt 3:27
Re: Big problems. seems like no injectors work on the passenger side.
See if the INJ 1 fuse is blown in the fuse block. I think those are the right bank. there are two fuses that supply power to the injectors
Supreme Member
Joined: Oct 2006
Posts: 1,974
Likes: 0
Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: Big problems. seems like no injectors work on the passenger side.
you think he started pulling connectors while the car was running?... interesting...
Thread Starter
Member
iTrader: (1)
Joined: Feb 2007
Posts: 108
Likes: 0
From: Frankfort,Il (Chicago)
Car: 1989 Iroc Z28
Engine: TPI 5.0
Transmission: 700R4
Axle/Gears: Stock
Re: Big problems. seems like no injectors work on the passenger side.
I only took of the top parts today to test the injectors.only the injectors on the pass. side don't work. I never took them off when I put on the runners. I did put on a new IAC today. will that affect the injectors to have 4 go bad at once.
----------
was that a bad idea
----------
was that a bad idea
Last edited by jcsereiko; Apr 12, 2007 at 10:27 PM. Reason: Automerged Doublepost
Supreme Member
iTrader: (2)
Joined: Jan 2002
Posts: 9,962
Likes: 5
From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: Big problems. seems like no injectors work on the passenger side.
The injectors likely are fine. It sounds like they either dont have the constant +12 volts, or there is a break on the negatively switched side.
Thread Starter
Member
iTrader: (1)
Joined: Feb 2007
Posts: 108
Likes: 0
From: Frankfort,Il (Chicago)
Car: 1989 Iroc Z28
Engine: TPI 5.0
Transmission: 700R4
Axle/Gears: Stock
Re: Big problems. seems like no injectors work on the passenger side.
nope, the fuses are fine? if those are the two fuses in the fuse block that say injector 1 and injector 2 with a fuse for each of those(two total). they are #10 fuse and they are fine. and the car runns like cr_p still.
----------
what do you mean? how do I check the neg switch side and for constant 12 + for the pass. side.
----------
what do you mean? how do I check the neg switch side and for constant 12 + for the pass. side.
Last edited by jcsereiko; Apr 12, 2007 at 10:40 PM. Reason: Automerged Doublepost
Trending Topics
Supreme Member
iTrader: (2)
Joined: Jan 2002
Posts: 9,962
Likes: 5
From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: Big problems. seems like no injectors work on the passenger side.
Using a volt meter, one pin in each injector connector should have +12 volts at all times with respect to ground. The ECM switches the injectors on the negative side (other pin in each connector). If there is a break on the negative side, the injectors wont fire.
Do you have a 'noid light? Hook one up and see if you get anything out of it at all while cranking.
----------
Tinkering with the TV cable will trash the trans. With the throttle all the way open, the cable should have no slack in it when you press on the actual cable itself. If it does, the cable needs to be re-adjusted.
Do you have a 'noid light? Hook one up and see if you get anything out of it at all while cranking.
----------
Tinkering with the TV cable will trash the trans. With the throttle all the way open, the cable should have no slack in it when you press on the actual cable itself. If it does, the cable needs to be re-adjusted.
Last edited by dimented24x7; Apr 12, 2007 at 10:57 PM. Reason: Automerged Doublepost
Thread Starter
Member
iTrader: (1)
Joined: Feb 2007
Posts: 108
Likes: 0
From: Frankfort,Il (Chicago)
Car: 1989 Iroc Z28
Engine: TPI 5.0
Transmission: 700R4
Axle/Gears: Stock
Re: Big problems. seems like no injectors work on the passenger side.
I will check the voltage will a regular ohm meter work ? and fior the tv cable, will the cable be very firm or just no slack?
Thread Starter
Member
iTrader: (1)
Joined: Feb 2007
Posts: 108
Likes: 0
From: Frankfort,Il (Chicago)
Car: 1989 Iroc Z28
Engine: TPI 5.0
Transmission: 700R4
Axle/Gears: Stock
Re: Big problems. seems like no injectors work on the passenger side.
I checked it and nothing , but this was with just the ignition in the on position. Does the car have to be running for this to work?
Supreme Member
Joined: Jan 2003
Posts: 1,931
Likes: 1
From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
Re: Big problems. seems like no injectors work on the passenger side.
I think so ...if the car see's no oil preasure , the injectors will not fire. Correct me if I am wrong though . Did you ohm out the injectors ? Are they in spec ? I am just tossing in other free stuff you can check out .
Thread Starter
Member
iTrader: (1)
Joined: Feb 2007
Posts: 108
Likes: 0
From: Frankfort,Il (Chicago)
Car: 1989 Iroc Z28
Engine: TPI 5.0
Transmission: 700R4
Axle/Gears: Stock
Re: Big problems. seems like no injectors work on the passenger side.
keep the reply and ideas comming guys, i need all the help. I am going to one of those weekend marriage seminars. it is going hard for me to keep my mind off this car. i will be able to tinker more with the car on tuesday. fix Marriage first then fix car... right guys! thanks and I appreciated all the help and I want to thank you ahead of time for the new replys that i will reply back to on monday. God bless had have fun racing this weekend, I will be doing other things.
Supreme Member
iTrader: (2)
Joined: Jan 2002
Posts: 9,962
Likes: 5
From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: Big problems. seems like no injectors work on the passenger side.
----------
They should be energized with or without the engine running.
Last edited by dimented24x7; Apr 13, 2007 at 09:10 AM. Reason: Automerged Doublepost
Supreme Member
Joined: Jul 2005
Posts: 1,675
Likes: 3
From: Arab, Alabama
Car: 1988 Trans Am GTA
Engine: 350 4BBL
Transmission: 700R4
Axle/Gears: 3.27
Re: Big problems. seems like no injectors work on the passenger side.
Also, if you changed the TPS, it has to be calibrated.
p.s.hopefully the marriage counseler won't say the problem is that "damn car"
Last edited by Supervisor42; Apr 13, 2007 at 08:18 PM. Reason: added tps note
Thread
Thread Starter
Forum
Replies
Last Post





