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

89 firebird 2.8 V6 Rough Idle

Thread Tools
 
Search this Thread
 
Old Jun 18, 2009 | 04:53 PM
  #1  
racrx1271's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2007
Posts: 28
Likes: 0
89 firebird 2.8 V6 Rough Idle

Car idles good in park or nuetral, when you put it in drive or stopped at a light in stumbles. When car is first started it dosn't seem to have a fast idle or choke, any ideas? would the TPS be causing this? Has an exhaust leak seems like it needs cat back system.
Reply
Old Jun 18, 2009 | 05:07 PM
  #2  
sloick's Avatar
Member
15 Year Member
 
Joined: Apr 2009
Posts: 266
Likes: 0
From: Dayton OH
Car: Many
Engine: Several
Transmission: Automatics
Re: 89 firebird 2.8 V6 Rough Idle

Originally Posted by racrx1271
Car idles good in park or nuetral, when you put it in drive or stopped at a light in stumbles. When car is first started it dosn't seem to have a fast idle or choke, any ideas? would the TPS be causing this? Has an exhaust leak seems like it needs cat back system.
check engine light on? i bet it is. what codes are they?
Reply
Old Jun 18, 2009 | 05:20 PM
  #3  
racrx1271's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2007
Posts: 28
Likes: 0
Re: 89 firebird 2.8 V6 Rough Idle

Im getting a 13, 23 and 32. I got a new O2 sensor that I'm gonna put in. I wondering if I should put in a new TPS too, or a Mat and it seems like the EGR is working properly. Is there a certain order to do these things?
Reply
Old Jun 18, 2009 | 05:41 PM
  #4  
sloick's Avatar
Member
15 Year Member
 
Joined: Apr 2009
Posts: 266
Likes: 0
From: Dayton OH
Car: Many
Engine: Several
Transmission: Automatics
Re: 89 firebird 2.8 V6 Rough Idle

un plug the maf and see if it affects the idle. it should.
Reply
Old Jun 18, 2009 | 07:27 PM
  #5  
racrx1271's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2007
Posts: 28
Likes: 0
Re: 89 firebird 2.8 V6 Rough Idle

thx., I'll try unpluging the mat. If it affects the idle, I guess that means it should be replaced
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
GeneralIesrussi
Carburetors
6
Jun 20, 2024 07:21 PM
86maro_252
Tech / General Engine
6
Oct 10, 2015 06:52 PM
skinny z
Carburetors
11
Sep 29, 2015 11:25 PM
lanceflame44
Tech / General Engine
0
Sep 25, 2015 12:28 PM
rjcme
Tech / General Engine
0
Sep 5, 2015 01:23 PM




All times are GMT -5. The time now is 03:32 PM.