why does my TBI bog down a little?
12-02-2010, 07:12 PM
#1
Member
Thread Starter
Join Date: Dec 2010
Location: San Antonio, Tx
Posts: 127
Likes: 0
Received 0 Likes
on
0 Posts
Car: 89 Camaro R.S.
Engine: LB9 5.0 (lt1 cam)full exhaust..
Transmission: WC T-5 pro5.0 shifter zoom S/s
Axle/Gears: 9 bolt, 3.27's
why does my TBI bog down a little?
ok, I got my hands on a nice 89 rs, it came with a 92 lo3 engine, to make a long story short ...i took it to get a slight hesitation fixed, but instead got it back with a 2bbl carb and cast iron intake.... 
.. so i just put the tbi system back on via ebay, and it has a good idle, i also resealed the motor. now my problem is when i rev it and hold it a 3-4 rpm it holds it for about 1 sec and then drops a little bit, what can the problem be???
.. so i just put the tbi system back on via ebay, and it has a good idle, i also resealed the motor. now my problem is when i rev it and hold it a 3-4 rpm it holds it for about 1 sec and then drops a little bit, what can the problem be??? Last edited by Chris_89rs; 12-02-2010 at 07:17 PM. Reason: messed up
12-03-2010, 04:23 AM
#2
Supreme Member
Join Date: Jun 2006
Location: West-Central
Posts: 2,199
Likes: 0
Received 1 Like
on
1 Post
Car: 91 Trans am
Engine: built 360 TBI
Transmission: built 700r4
Axle/Gears: 10bolt/3.23
Re: why does my TBI bog down a little?
You could start by making sure all sensor are there, the IAC is set and working, test the fuel pressure and make sure the trottle blades are not sticking.
12-03-2010, 05:09 AM
#3
Senior Member
Join Date: Feb 2010
Location: San Diego, California
Posts: 1,125
Likes: 0
Received 0 Likes
on
0 Posts
Car: Trailblazer EXT 4.2 (Firebird Form)
Engine: 5.1 4bbl
Transmission: 700R4 Mega Raptor Level 4
Axle/Gears: 2.73
Re: why does my TBI bog down a little?
if it has an EGR, make sure it's functional..
12-03-2010, 08:57 PM
#4
Member
Thread Starter
Join Date: Dec 2010
Location: San Antonio, Tx
Posts: 127
Likes: 0
Received 0 Likes
on
0 Posts
Car: 89 Camaro R.S.
Engine: LB9 5.0 (lt1 cam)full exhaust..
Transmission: WC T-5 pro5.0 shifter zoom S/s
Axle/Gears: 9 bolt, 3.27's
Re: why does my TBI bog down a little?
i got the response waaaay better, now when i'm cruising and try to stay at 30-40 mph, the car will feel like it wants to die, kinda like when you dont give it enough gas to let the clutch out, kinda rocks back and forward ,,,i just put a zoom clutch and had the flywheel turned...bled the clutch lines
Thread
Thread Starter
Forum
Replies
Last Post
RedLeader289
Tech / General Engine
10
05-28-2019 01:47 PM
