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

3.1 struggling a bit

Thread Tools
 
Search this Thread
 
Old Jan 22, 2004 | 06:42 PM
  #1  
Pillsbry10's Avatar
Thread Starter
Supreme Member
iTrader: (1)
 
Joined: May 2003
Posts: 2,023
Likes: 3
From: Evansville, IN
Car: 1992 Camaro RS 25th Anniversary
Engine: 3.4L v6 with a t3/t4 Turbo
Transmission: T-5 Conversion
Axle/Gears: 3.23 SLP Limited Slip
3.1 struggling a bit

minor problem with my new 3.1, everytime i slow to a stop the rpms drop from normal idle to like 400 and 500 and jump up and down from there to 1000. any ideas what might cause this, usually doesnt do it when in neutral and every now and then the rpms drop to low and it dies. little help?
Reply
Old Jan 22, 2004 | 07:56 PM
  #2  
camaro_junkie's Avatar
Supreme Member
 
Joined: Apr 2003
Posts: 1,111
Likes: 0
From: Vancouver, BC
Car: '86 Camaro SC, '16 QX60
Engine: 2.8 V6 POWER, 3.5L V6 N/A
Transmission: T-5, CVT
Well don't quote me, but I did read in another post that the drop in rpm is a symptom of a bad fuel pressure regulator. Do a search. I believe that the jump in rpm is just the computer trying to recover the engine idle speed.
Reply
Old Jan 22, 2004 | 08:03 PM
  #3  
RBob's Avatar
Moderator
iTrader: (1)
 
Joined: Mar 2002
Posts: 18,432
Likes: 233
From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: 3.1 struggling a bit

Originally posted by Pillsbry10
minor problem with my new 3.1, everytime i slow to a stop the rpms drop from normal idle to like 400 and 500 and jump up and down from there to 1000. any ideas what might cause this, usually doesnt do it when in neutral and every now and then the rpms drop to low and it dies. little help?
I would do an idle learn procedure on it. With the new engine I take it that the battery was disconnected? The 3.1's w/auto's need to learn how to idle whenever the ECM loses battery power.

Here is a link to the procedure:

https://www.thirdgen.org/techbb2/sho...idle+AND+learn

RBob.
Reply
Old Jan 22, 2004 | 08:10 PM
  #4  
camaro_junkie's Avatar
Supreme Member
 
Joined: Apr 2003
Posts: 1,111
Likes: 0
From: Vancouver, BC
Car: '86 Camaro SC, '16 QX60
Engine: 2.8 V6 POWER, 3.5L V6 N/A
Transmission: T-5, CVT
Originally posted by RBob
I would do an idle learn procedure on it. With the new engine I take it that the battery was disconnected? The 3.1's w/auto's need to learn how to idle whenever the ECM loses battery power.
Well, I learned something new today (even though I don't drive an auto).
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
F-body-fan
Auto Detailing and Appearance
37
Jan 12, 2023 01:49 PM
FormulaEngland
European Region
38
Jul 17, 2016 07:33 AM
paul_huryk
Miscellaneous Third Gen Items!
1
Oct 1, 2015 04:27 PM
Zell1luk
TPI
0
Sep 29, 2015 10:36 AM
ndndndnd
Transmissions and Drivetrain
4
Sep 28, 2015 08:00 AM




All times are GMT -5. The time now is 05:38 AM.