weird 'pulsing' idle
 

A couple times when ive started up my car, it has gone no problem, but once its started the idle falls, and sort of bounces between like 250 and 1000 rpms. sometimes it just dies altogether. anyone know what it could be?

and jsut to not make another post.... how do you know when its time to replace your spark plugs? The prices on Icemarks site are amazing!

sry if tis been posted already, I tried searching but found nothing.

thks

You need to adjust your mechanical idle per the FSM...

Jumper the initial set connector (it'll probably die when you do this) and tweak the idle adjust screw (top of the TB) counter-clockwise to get her to 750 rpm...

The bouncing is the BAC trying to keep her from dying...

Wont an out of range TPS do this also? I vaguely remember mine bouncing a little bit before i adjusted it.

I took a gander through the fsm but could find the right page. have a section number handy at all? (for the mechanical idle adjsutment I mean)

aren't you supposed to disable the bac when you try to set the idle, and how the heck do set the TPS ot 1 OHM or whatever it is. I need to deal with this problem on my car too, and i also have a bit of a jerk when switching between accelerating and decelerating and vica versa. Its starting to bother me alot.

4B 80-82. I had the same problem on my car. It's almost too easy to fix.

how come my idle pulses when the clutch pedal pressed in and in gear? it would pulse from 1000 - 1500...its weird.

is there a more laymans way of explaining that, how do you jumper the initial set connector? and the screw on the throddle body? is it exposed or do need to find it?

nvm I got it :)

thanks a lot

somehow i ended up in the 2nd gen forum ;)
And this sounds like the problem i'm having w/my car
I have a TII setup in a 1st gen and it kinda does the same thing
Only @very low RPM,s video here.................................
http://oregonstate.edu/~abelk/images...SE/Picture.mpg
I know, the vid quality Sux

yup, exactly!


I had a henkerin, so I removed my magic ebay +20hp AIT mod, and it seems to have fixed it... weird :P

I have the same thing Sometimes randomly, but only when headlights are on lol....

yikes, pls keep the garage door open when u idle the car for that long inside the garage...

I had that problem untill I put an electrical grounding kit on, now no more problem, also my a/c and heater lights work also the surging while driving went away.