Low idle at startup
01-28-2007, 12:04 PM
#1
TECH Enthusiast
Thread Starter
iTrader: (5)
Join Date: Jun 2006
Location: Long Beach MS/Birmingham AL
Posts: 641
Received 0 Likes
on
0 Posts
Low idle at startup With the mods i have, both with and without a tune, the car will idle extremely low on startup and even die on occaison. It idles up fine after a little bit. Anyone got any ideas?
01-28-2007, 12:11 PM
#2
LS1Tech Administrator
iTrader: (3)
Join Date: Nov 2001
Location: Schiller Park, IL Member: #317
Posts: 32,033
Likes: 0
Received 1,483 Likes
on
1,067 Posts
Search for vacuum leaks. They will do all kinds of messed up things to your idle. Depending on the size and location of the leak, they can cause either a high or a low idle condition.
I'd check the intake and TB areas for leaks as my first step.
I'd check the intake and TB areas for leaks as my first step.
01-28-2007, 02:19 PM
#3
TECH Fanatic
iTrader: (1)
Join Date: Aug 2005
Location: Galveston, TX
Posts: 1,202
Likes: 0
Received 0 Likes
on
0 Posts
3 things to look at.
1. vaccuum leaks
2. Idle Air Control motor (IAC)
3. Throttle Position Sensor (TPS)
put a multimeter on the IAC and TPS and make sure they are recieving and putting out voltage. Or if you want to throw parts at it I think they are $40 or less each at Vatozone.
1. vaccuum leaks
2. Idle Air Control motor (IAC)
3. Throttle Position Sensor (TPS)
put a multimeter on the IAC and TPS and make sure they are recieving and putting out voltage. Or if you want to throw parts at it I think they are $40 or less each at Vatozone.
01-30-2007, 08:00 PM
#5
TECH Enthusiast
Thread Starter
iTrader: (5)
Join Date: Jun 2006
Location: Long Beach MS/Birmingham AL
Posts: 641
Received 0 Likes
on
0 Posts
For some reason also before the car is warm there is a rattle that almost sounds like the back of the motor or intake, but stops when it warms up and only does it at certain rpms. Almost like where the PCV is...
