Laser Base hesitates/stalls/bucking when warm

[mmountain]

I just bought my first DSM! http://www.dsmtuners.com/forums/welcome-forum-member-intros/463392-hello-all-new-dsm.html proud of that fact, but need some help with it. I see that a lot of people with turbo engines have the bucking/stalling/hiccupping problem and everyone always tells them to check for boost leak, but I don't have a turbo so what could be happening.

Its a 90 Laser Base, 5 speed, Big Hole in the flex pipe (SO DANG LOUD), the car is bone stock though and I'm the second owner.

When my car gets warm the CEL comes on (everytime I try to jump the terminals to check the computer it doesn't work) and then under heavier acceleration (3500+ RPM) the car acts like its stalling/losing power/bucking. I have changed the plugs and wires, put in NGK plugs and oreilly's premier wires. the engine idles better, but the problem isn't gone. The previous owner told me that it started this before he had the timing belt and water pump changed last November.

Also if anyone knows why my headlights would work on lo but cut out on hi that would help to.

Thanks for any help.

 

[Mischif]

They have them on rockauto, but its listed at $230. Theres also some used ones on ebay from $30-$50. If you have a pick and pull junkyard close to you, you could try looking there. I've never heard of one failing like yours did, usually they just act retarded and give you an unsteady idle. So i wouldn't be hesitant in picking up a used one.

Glad you finally got it figured out tho.

 

[mmountain]

what exactly do I need to search for? I can't find anything under "Idle Speed Control Motor Sensor" or any iteration of that.

 

[Mischif]

For rockauto its under fuel/air - Idle air control valve.
For ebay just put in "eclipse 1.8 idle speed control"

make sure you get the right one. Since yours is a 90 it may or may not use a special one that comes on the 90's only.