Idle to low.
10-18-09, 10:58 PM
#1
Junior Member
Thread Starter
Join Date: Oct 2009
Location: MASSACHUSETTS
Posts: 9
Likes: 0
Received 0 Likes
on
0 Posts
Idle to low.
I got a 88 gxl with 76,000+miles and it had bad exhaust leak when I bought it so I replaced it and bought racing beat headers presilencer from a buddy. Now it idles way to low and it stalls out. Do I need a air flow sensor or do something with the ECU?? Before it would idle at 1500RPM then to 900RPM when it's at operating temperature now it just drops to 300-500RPM. Any ideas??
10-19-09, 09:36 AM
#2
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
You have probably introduced a vacuum leak.
When you installed the headers, did you also pull the airpump and block off the ACV? If you just left the split air pipe dangling in the open I believe it will create a vacuum leak.
When you installed the headers, did you also pull the airpump and block off the ACV? If you just left the split air pipe dangling in the open I believe it will create a vacuum leak.
10-19-09, 03:46 PM
#3
The engine will actually run just fine with the split air port open to the air w/ the ACV in place. I did it for years w/out issue. My bet would be a vacuum leak in the intake area. Check out the plastic air duct running to the TB & anything else you might have touched while installing the header.
10-20-09, 07:02 PM
#5
Junior Member
Thread Starter
Join Date: Oct 2009
Location: MASSACHUSETTS
Posts: 9
Likes: 0
Received 0 Likes
on
0 Posts
ACV? Um I took off the actuators to remove the stock exhaust manifold and put them back on. If thats what you're talking about.
10-22-09, 09:24 AM
#6
Trending Topics
10-25-09, 08:46 PM
#9
Junior Member
Thread Starter
Join Date: Oct 2009
Location: MASSACHUSETTS
Posts: 9
Likes: 0
Received 0 Likes
on
0 Posts
Nope I didn't touch the ACV or the air pump hose when I removed the old exhaust manifold. And I don't know if the vacuum leaking or not but I'll remove vacuum hose and check for cracks. Anything else should I check?
Thread
Thread Starter
Forum
Replies
Last Post
LongDuck
1st Generation Specific (1979-1985)
12
10-07-15 08:12 PM