rough idle 305 TPI HELP!
#1
Member
Thread Starter
Join Date: Sep 2007
Location: Dumont NJ
Posts: 109
Likes: 0
Received 1 Like
on
1 Post
Car: 1991 Camaro Z28
Engine: 305
Transmission: 5 speed
Axle/Gears: alunimum drum limited slip 3.08
rough idle 305 TPI HELP!
the car is a 91 z28 w/ a 305 5speed.the car starts fine but when it warms up (close loop)the idle is rough like it has a mild cam.when i hit the throttle the car bogs and then it revs up.the fuel pressure does not drop when i do this.i've replaced the following:
cap and rotor
spark plug wires(MSD 8.5)and plugs
o2 sensor
MAP sensor
TPIS
removed throttle body & IAC cleaned w/ throttle body cleaner
fuel filter
have steady fuel pressure
sprayed intake base for leaks
checked cat to see if it was clogged ran car w/ open pipe did same thing
any ideas would be a BIG HELP!
Jason
cap and rotor
spark plug wires(MSD 8.5)and plugs
o2 sensor
MAP sensor
TPIS
removed throttle body & IAC cleaned w/ throttle body cleaner
fuel filter
have steady fuel pressure
sprayed intake base for leaks
checked cat to see if it was clogged ran car w/ open pipe did same thing
any ideas would be a BIG HELP!
Jason
#3
Junior Member
Join Date: Dec 2006
Location: Spain
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
Car: 91 Trans Am, 73 Camaro
Engine: 305 TPI, 400 sbc
Re: rough idle 305 TPI HELP!
Take attention at the advance timing, not only set the initial timing at 6º BTC, also look what happen when you reconect the test wire. At this time the advance should be about 16-20º.
#4
Member
Thread Starter
Join Date: Sep 2007
Location: Dumont NJ
Posts: 109
Likes: 0
Received 1 Like
on
1 Post
Car: 1991 Camaro Z28
Engine: 305
Transmission: 5 speed
Axle/Gears: alunimum drum limited slip 3.08
Re: rough idle 305 TPI HELP!
i forgot to mention no codes are showing.when you say check the advance should the wire be connected or disconnected? I did check the timing,it was @ 10 degrees were i set it.
Jason
Jason
Thread
Thread Starter
Forum
Replies
Last Post
Sanjay
Engine/Drivetrain/Suspension Parts for Sale
1
08-12-2015 03:41 PM