Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

Strange Problem. Need Help!

Thread Tools
 
Search this Thread
 
Old Jan 22, 2015 | 09:35 PM
  #1  
Jimmy Tongo's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2015
Posts: 10
Likes: 0
Strange Problem. Need Help!

OK so I am having some issues with my 1985 Pontiac firebird 2.8L V6. It does not want to start but when it does it will only idle, if you press the gas pedal it will rev a little than drop to 400rpm or just die. If you twist the throttle on the throttle body it will rev up normally. I thought it was a fuel problem, but I replaced the fuel filter and I am getting 43lbs of fuel pressure. I checked the spark plugs and I am getting spark at all of the spark plugs. So I read around on the forum and it seemed like it was the ignition control module but I replaced it today and still nothing. Anybody have any ideas as to what the problem is?
Reply
Old Jan 22, 2015 | 11:16 PM
  #2  
92RS shearn's Avatar
Senior Member
 
Joined: Apr 2000
Posts: 788
Likes: 0
From: Wichita, KS
Car: 92' RS
Engine: LO3
Transmission: Probuilt 700R4
Axle/Gears: 3.70 9-bolt
Re: Strange Problem. Need Help!

What about the injectors?
Reply
Old Jan 22, 2015 | 11:17 PM
  #3  
Jimmy Tongo's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2015
Posts: 10
Likes: 0
Re: Strange Problem. Need Help!

Oh maybe, how can I figure out if it is the injectors?
Reply
Old Jan 22, 2015 | 11:31 PM
  #4  
Jimmy Tongo's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2015
Posts: 10
Likes: 0
Re: Strange Problem. Need Help!

But the injectors being the problem does not make sense that I can manually twist the throttle on the throttle body and it will rev up.
Reply
Old Jan 23, 2015 | 07:13 PM
  #5  
Jimmy Tongo's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2015
Posts: 10
Likes: 0
Re: Strange Problem. Need Help!

Anybody have any ideas.
Reply
Old Jan 25, 2015 | 08:55 PM
  #6  
Jimmy Tongo's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2015
Posts: 10
Likes: 0
Re: Strange Problem. Need Help!

Anybody????
Reply
Old Jan 26, 2015 | 08:24 PM
  #7  
sgp0511's Avatar
Member
 
Joined: Oct 2014
Posts: 125
Likes: 5
Car: 1988 Firebird
Engine: 305
Transmission: 700r4
Re: Strange Problem. Need Help!

well if it revs normally when you manually gas it at the throttle body, i would assume theres something not right with your throttle cable, have someone press the gas pedal while you watch the throttle body where the cable connects to see if it works as it should, i think something must be getting caught up
Reply
Old Jan 26, 2015 | 08:30 PM
  #8  
Jimmy Tongo's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2015
Posts: 10
Likes: 0
Re: Strange Problem. Need Help!

The gas pedal does operate the manual throttle like normal, so I don't think that is the problem. Now the car will not start not even with starter fluid.
Reply
Old Jan 27, 2015 | 07:44 PM
  #9  
Jimmy Tongo's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2015
Posts: 10
Likes: 0
Re: Strange Problem. Need Help!

I have spark, fuel pressure, and air so why won't it start?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Fanatic1074
Tech / General Engine
45
Oct 3, 2022 05:57 AM
Falcon50
DFI and ECM
81
Aug 22, 2020 03:26 PM
RS Reaper
Electronics
4
Oct 17, 2018 07:52 PM
HoosierinWA
Tech / General Engine
5
Oct 7, 2015 10:15 AM
BWilcox
Tech / General Engine
1
Sep 20, 2015 12:19 PM




All times are GMT -5. The time now is 10:35 AM.