Search



Go Back   Third Generation F-Body Message Boards > Tech Boards > V6
Register Forgot Password?

V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

Welcome to ThirdGen.org!
Welcome to ThirdGen.org.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join the ThirdGen.org community today!


Reply
 
Thread Tools Search this Thread
Old 08-22-2009, 09:40 PM   #1
Junior Member
 
Join Date: Apr 2009
Location: Murfreeseboro, Tennessee
Posts: 47
Car: 90 Camaro RS
Engine: 3.1

Classifieds Rating: (0)
RUNS GOOD WHEN COLD BAD WHEN HOT

i have a 1990 camaro rs it sat for a few years. i replaced wires plugs fuel pump and the modual under the distributer. it also throws a code 43. When the is cold it will runs perfect. When it warms up it has no power and sputters. Anyone have any idea what the problem any imput would help!
Irocz207 is offline vBGarage Page   Reply With Quote
Old 08-22-2009, 09:54 PM   #2
Junior Member
 
Join Date: Apr 2009
Location: Murfreeseboro, Tennessee
Posts: 47
Car: 90 Camaro RS
Engine: 3.1

Classifieds Rating: (0)
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

need help badly
Irocz207 is offline vBGarage Page   Reply With Quote
Old 08-22-2009, 10:59 PM   #3
Junior Member
 
Rafs's Avatar
 
Join Date: Aug 2009
Location: NJ
Posts: 15
Car: 87 Firebird

Classifieds Rating: (0)
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

Check your O2 sensor
Rafs is offline vBGarage Page   Reply With Quote
Old 08-28-2009, 10:35 PM   #4
Junior Member
 
Join Date: Apr 2009
Location: Murfreeseboro, Tennessee
Posts: 47
Car: 90 Camaro RS
Engine: 3.1

Classifieds Rating: (0)
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

How do u jus check one without replacing it. But i dont think that is the pronlem any other ideas?
Irocz207 is offline vBGarage Page   Reply With Quote
Old 08-29-2009, 12:46 AM   #5
Supreme Member
 
Gumby's Avatar
 
Join Date: Oct 2001
Location: NWOhioToledoArea
Posts: 7,822
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42

Classifieds Rating: (0)

Re: RUNS GOOD WHEN COLD BAD WHEN HOT

At what temp does it start to run bad?

got a laptop, you can hook a computer up to them easy winaldl, only pricy part is if you buy the cable. but buildingit is easy but not, took two tries to get a good one built for me.
__________________
86 Pontiac Firebird [68 Firebird HoodScoops, Notchback, Rear Mounted Tach, Inverted Wing,
T/A HoodVents in SailPanel, Front & Rear STB, Boxed LCA/PanHard, Fulley Welded Interior, Alston SFC]

https://play.google.com/store/apps/d...v.ThirdGenChat
https://www.facebook.com/pages/Third...54004141332716
https://www.amazon.com/Third-Gen-Cha...dp/B00BCPCNQG/
Gumby is offline vBGarage Page   Reply With Quote
Old 08-29-2009, 01:50 AM   #6
Member
 
ROCFATHER's Avatar
 
Join Date: Feb 2008
Location: Southern California (310)
Posts: 450
Car: 89 IROC-VERT
Engine: TPI 305
Transmission: 700R4 Auto
Axle/Gears: 2.77

Classifieds Rating: (0)
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

Try and get a new ignition coil. I picked one up from auto zone for about 20 sumthing. Could also be bad injectors... but try that first.
ROCFATHER is offline vBGarage Page   Reply With Quote
Old 08-29-2009, 11:06 AM   #7
Junior Member
 
Join Date: Apr 2009
Location: Murfreeseboro, Tennessee
Posts: 47
Car: 90 Camaro RS
Engine: 3.1

Classifieds Rating: (0)
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

it dosent do it at any certain temp. i think it does it when it switches to closed loop. ive already checked the injectors and they were fine. Is there any way to make it stay in the open loop?
Irocz207 is offline vBGarage Page   Reply With Quote
Old 08-31-2009, 11:48 AM   #8
Junior Member
 
Join Date: Aug 2009
Location: unfortunatly ms
Posts: 24
Car: 1991 camaro rs
Engine: tbi 305
Transmission: 700r4
Axle/Gears: its kinda low

Classifieds Rating: (0)
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

my 5.0 rs does the same runs crazy fast in the mornings when its cold and drives like a dodge when it warms up and i also think my fuel pump whent out cause it spit and sputtered real bad last time i drove it
chevyfanman is offline vBGarage Page   Reply With Quote
Old 08-31-2009, 03:04 PM   #9
Junior Member
 
Join Date: Dec 2007
Posts: 36

Classifieds Rating: (0)
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

Can be the water temp sensor located into the thermostate?

Try to get it and clean using a WD40.

I have in the past an Alfa Romeo 155 with a 2.0 Twin Spark and make the same problem that you V6, and was this sensor was sending a bad info to the ECU causing a bad mixture.

I think the best idea, is buy an ALDL wire into eBay, and conect your laptop to the car and get the data info to view the sensors value and get a good analysis.
SpaniardV6 is offline vBGarage Page   Reply With Quote
Old 08-31-2009, 03:14 PM   #10
Senior Member
 
Join Date: Nov 2001
Location: Tenino, Washington
Posts: 807
Car: 89 f-bird and some others
Engine: 3.4
Transmission: 700R4
Axle/Gears: 3.42

Classifieds Rating: (0)

Re: RUNS GOOD WHEN COLD BAD WHEN HOT

There's a way to datalog or whatever with the 1227302 ecm?

I'll have to try winaldl I guess. Can't do it with TunerPro. Hopefully my moates cable will work.

I had a similiar problem once with my 89. Replaced the ignition coil (in case there was a hairline crack letting moisture in), and the o2 sensor. Fixed it right up.
coolrimsatleast is offline vBGarage Page   Reply With Quote
Old 08-31-2009, 03:15 PM   #11
Senior Member
 
K-slice's Avatar
 
Join Date: Jun 2008
Location: Traverse City, MI
Posts: 728
Car: 91' Firebird
Engine: 3.1 LH0 V6
Transmission: Auto 700R4
Axle/Gears: 3.23 limited slip

Classifieds Rating: (2)
Send a message via Yahoo to K-slice
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

I'd say, it's the fuel pump. I had a "friend" replace mine and It's done something similar ever since. Lemme ask you, when it gets hot is it like you hit the gas and it wont rev high? Does it go to like 2K then start to die? Because that's what mine does and I'm 99% sure it's the fuel pump. I also have a high pitched whine comming from the pump...
I don't have the time and definitley not the money to work on mine right now so I might have to let it stay this way untill next spring...
__________________
'91 Firebird 3.1
Aluminum UDP, Wonderbar, Cooper Cobras, high flow cat, K&N, more when I get the money...
K-slice is offline vBGarage Page   Reply With Quote
Old 09-07-2009, 12:50 PM   #12
Junior Member
 
Join Date: Apr 2009
Location: Murfreeseboro, Tennessee
Posts: 47
Car: 90 Camaro RS
Engine: 3.1

Classifieds Rating: (0)
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

i jus put in a new fuel pump and sometimes it does whine but it feels lik when it switches to the closed loop it doesent get enough gas. If you stomp it it jus sputters but if u jus barley stay on the gas it is fine. I think it is the knock sensor any ideas.
Irocz207 is offline vBGarage Page   Reply With Quote
Old 09-07-2009, 01:59 PM   #13
Junior Member
 
Poptart's Avatar
 
Join Date: Mar 2009
Location: Fort Wayne
Posts: 55
Car: '91 Firebird
Engine: V6

Classifieds Rating: (0)
Send a message via Yahoo to Poptart
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

It seems like alot of questions on here deal with this issue. Im having the same problem. Everyone tends to find something that worked for them. A list of things I have either checked, replaced or am in the process of looking into are.

Fuel pump, Fuel return line, injectors, ignition coil, spark plugs, cap and rotor, fuel pressure reg, ignition module.

Try looking into those things.
Poptart is offline vBGarage Page   Reply With Quote
Old 09-07-2009, 05:29 PM   #14
Junior Member
 
Join Date: Apr 2009
Location: Murfreeseboro, Tennessee
Posts: 47
Car: 90 Camaro RS
Engine: 3.1

Classifieds Rating: (0)
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

Quote:
Originally Posted by Poptart View Post
It seems like alot of questions on here deal with this issue. Im having the same problem. Everyone tends to find something that worked for them. A list of things I have either checked, replaced or am in the process of looking into are.

Fuel pump, Fuel return line, injectors, ignition coil, spark plugs, cap and rotor, fuel pressure reg, ignition module.

Try looking into those things.
I put in a new pump, already checked the coil, put in new plugs, checked cap and rotor, and put in new module. any other ideas
Irocz207 is offline vBGarage Page   Reply With Quote
Old 09-07-2009, 06:36 PM   #15
Junior Member
 
Join Date: Apr 2009
Location: Murfreeseboro, Tennessee
Posts: 47
Car: 90 Camaro RS
Engine: 3.1

Classifieds Rating: (0)
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

bump
Irocz207 is offline vBGarage Page   Reply With Quote
Old 09-09-2009, 12:38 AM   #16
Junior Member
 
Poptart's Avatar
 
Join Date: Mar 2009
Location: Fort Wayne
Posts: 55
Car: '91 Firebird
Engine: V6

Classifieds Rating: (0)
Send a message via Yahoo to Poptart
Re: RUNS GOOD WHEN COLD BAD WHEN HOT

If the fuel system is tip top as well as the ignition system then I'd almost have to say there is misread at one of the sensors. Id try what one of the guys above me said and get a read on the numbers running through the ecm.

I hope you figure it out cause it sounds like you have tried everything under the sun.
Poptart is offline vBGarage Page   Reply With Quote
Old 11-25-2009, 09:57 PM   #17
Senior Member
 
entrig00's Avatar
 
Join Date: Apr 2004
Location: Tucson, AZ
Posts: 330
Car: 91 Camaro RS
Engine: 3.1 V6
Transmission: t-5

Classifieds Rating: (1)

Re: RUNS GOOD WHEN COLD BAD WHEN HOT

Anyone know what happen?


Is he up and running and what did he do to fix the problem or what was the problem...


I'm still going throu the same thing....
entrig00 is offline vBGarage Page   Reply With Quote
Old 11-25-2009, 09:57 PM
ThirdGen
1992 Camaro




Paid Advertisement


Reply

Go Back   Third Generation F-Body Message Boards > Tech Boards > V6

Tags
89, 92, bad, camaro, car, cold, fine, gassed, good, high, irocz, noise, pitch, runs, start, started, warms
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 


1982 Camaro '82 || 1983 Camaro '83 || 1984 Camaro '84 || 1985 Camaro '85 || 1986 Camaro '86 || 1987 Camaro '87 || 1988 Camaro '88 || 1989 Camaro '89 || 1990 Camaro '90 || 1991 Camaro '91 || 1992 Camaro '92


All times are GMT -5. The time now is 11:21 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
All content copyright 1997 - 2014 ThirdGen.org. All rights reserved. No part of this website may be reproduced without the expressed, documented, and written consent of ThirdGen.org's Administrators.

Emails & Contact Details