Idle Adjustment 89 300zxt - Z31 Performance

JSM

Senior Member

Posts: 279
#1

Idle Adjustment 89 300zxt

11-09-2017, 06:58 PM

Is this screw from the FSM the only way to adjust the idle or at least the recommended way?

1 Photo

Jeff
71 240z

80 280zx 10th Anniversary

88 300zx Turbo, 89 300zx Turbo

Datsun Jeff
JSM

Senior Member

Posts: 279
#2

11-09-2017, 09:01 PM

Actually on the vg30et looks like the AAC valve. Of course mine is rusty beyond belief.

1 Photo

Jeff
71 240z

80 280zx 10th Anniversary

88 300zx Turbo, 89 300zx Turbo

Datsun Jeff
bonfire79

Senior Member

Posts: 223
#3

11-16-2017, 06:42 PM

yes, the 1st diagram is the n/a valve which has the idle adjustment on the side for access. the turbo valve in the second pic has the screw on the back side of it… facing the firewall. thats where yours should be. the valves are set adjusted from factory but you can adjust it as well with a short flat head. i wouldn't mess with it unless you're having major issues.

Bon
JSM

Senior Member

Posts: 279
#4

11-16-2017, 10:07 PM

Man mine won't budge.

Jeff
71 240z

80 280zx 10th Anniversary

88 300zx Turbo, 89 300zx Turbo

Datsun Jeff
bonfire79

Senior Member

Posts: 223
#5

11-17-2017, 12:00 PM

you can remove the valve and clean it up some. or you can get another used valve over at 300zxpartsforyou.com

Bon