dointhemzs

i fixed my fast idle thermo valve but now i have a rough idle and it stays at 15 grand. i noticed i wasnt getting full spark out of my third plug so i got new wires and distributor cap and spark plugs. still cant get it running right. all my hoses are new and i just bought an idle air control sensor. any help?

dointhemzs

its an h22

Acidcrakker

you have a vaccum leak.

Assuming you have turned the TB screw in all the way.

dointhemzs

i havent touched the screw yet. should i? would that explain why i have a rough idle though?

Acidcrakker

What do you mean by rough idle?

Does it shake, vibrate, or just have the high idle?

dointhemzs2

it shakes and vibrates and the exhaust sounds like bmmm bmmm bmmm bmmm

Acidcrakker

Sounds more like a timing issue, or all your spark plugs arent firing.

A video would help you out more.

What I want you to do, is go out side start your car, and pull the spark plug wires 1 at a time and replace it and do it for all 4. Look for changes in the motor when you pull the wire.

Your looking for nothing to happen when you pull a plug, that would indicate that one cylider is not firing, perhaps 2.

dointhemzs2

its the third spark plug. its not firing at full potential. thats why i got a distributor cap and wires and plugs. atill having this same problem

Acidcrakker

Do you install the plugs in the right order?

New rotar too. The spark should be present if you have it on all other cylinders. Try and switch the plugs around.