Bison Asko

I have got to do something about this AFM. I have an 86' n/a six port with some basic modifications. i opened up the intake by removing the six port actuation system and i also added a cold intake unit. I also put some exhaust headers on it as well. I notice that once i removed the 6 port system the idle is rough and it is running rich(it smells like it anyway). I took the black cover off the AMF and ajusted it and it ran a little better. Just wanted to know what do i need to do to fix the problem, besides sell the bastard. I am getting 27mpg on the Hwy and 23 in the city i would like to keep it that way but the idle problem is killing me. Your help would be a big help,.

Turblown

iTrader: (12)

I've never personally removed the sleeves, but I'm going to guess have so much intake duration at low air speeds is killing velocity( not to mention having such a late closing time at low rpms); hurting your idle...

arghx

iTrader: (3)

it's my understanding that just removing the 6 port system will not cause the symptoms that you describe. Something else must have happened when you put everything back together.

spot_skater

First off, you should never have had to open up the AFM. It's a sealed unit, and calibrated at the factory.

That's out of the way...

Have you checked the TPS? Should reak 1kohm @ idle, I think. Check it after the car has warmed up. Also, do a look over for any popped off vacuum hoses that could cause leaks.

Bison Asko

I set the TPS and its still rough I thought since I removed the factory setup that the specs may have to be changed for the AFM since the airflow demand will be more. I also removed most of the emmisions crap it may be a vac leak. It also stalls after about 5 sec when cold once it is warmed up its fine but still missing. I guess Ill keep looking

arghx

iTrader: (3)

nah dude the whole point of an AFM is to measure the additional airflow.