Results 1 to 8 of 8
Thread: rough idle at start up
-
08-03-2009, 11:06 AM #1
- Join Date
- Apr 2009
- Location
- Centerton AR.
- Posts
- 38
Pewter- 2001 Firebird Trans Am
rough idle at start up
I just rebuilt my ls1 and at start up the idle is around 250-500rpm. After about 10 seconds it finds normal idle. What do I need to do?
-2.5 5.3 heads
-TQv2 cam 114 LSA
-Pace LTs
-3" y pipe
-37lb injectors
-Gutted stock MAS
-LS6 oil pump and timing chain
-LS6 intake manifold
-Stock TB
-Texas Speed computer tuneLast edited by 2001TransAm; 08-03-2009 at 12:05 PM.
-
08-03-2009, 12:44 PM #2
-
08-04-2009, 03:42 AM #3
Maybe open the TB idle screw some.
-
08-04-2009, 04:04 AM #4
- Join Date
- Apr 2009
- Location
- Centerton AR.
- Posts
- 38
Pewter- 2001 Firebird Trans Am
I was thinking of doing that but the idle if fine after about 10 seconds. I will try it anyway. Anyother possible ideas?
-
08-04-2009, 04:11 AM #5
The idle control motor might be maxing out, so that might help.
-
08-04-2009, 05:14 AM #6
- Join Date
- Jan 2006
- Location
- Shepherd, Michigan
- Age
- 36
- Posts
- 11,770
blacker than wesleysnipes- 98' trans am
+2 for a better tune.
-
08-04-2009, 08:16 AM #7
If you have access to HP Tuners, You could look at your IAC motor and see what the counts are. If I remember correctly they need to be between 45-65 at hot idle. This is directly related to your tune more then likely, and why a mail order for a cam/head swap just will not suffice usually. I bet TSP has sold hundreds of these and know what the tune should look like, but they cant nail down little problems like this. Thats where either A) tuning over email with both parties owning HPT and you owning a wideband or B) getting a decent tuner to take a look at your situation would have worked better.
Last edited by Hi-Po; 08-04-2009 at 08:19 AM.
-
08-05-2009, 11:06 AM #8
- Join Date
- Apr 2009
- Location
- Centerton AR.
- Posts
- 38
Pewter- 2001 Firebird Trans Am
A better more fine tune is what im thinking to, I live in northwest Arkansas and looking for a tuner for a decent price. Thanks for the help
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Help: Rough Cold-Start Idle
By PonyCAR in forum Firebird / WS6Replies: 8Last Post: 05-15-2017, 01:37 PM -
Help: intermittant rough idle, off idle hesitation
By Matto4785 in forum General HelpReplies: 1Last Post: 09-21-2009, 05:12 AM -
Help: low, rough, surging rpm at idle after hot start
By wcidioti in forum General HelpReplies: 4Last Post: 05-11-2009, 11:01 PM -
Rough Idle
By smkeater911 in forum Camaro / SSReplies: 5Last Post: 08-28-2008, 11:17 AM -
C5 Rough Idle
By BlkNBlkC5 in forum CorvetteReplies: 1Last Post: 04-14-2007, 06:42 PM
Bookmarks