SaabCentral Forums banner

1 - 12 of 12 Posts

·
Registered
Joined
·
7 Posts
Discussion Starter · #1 ·
i have a 89 saab 900 non turbo. the trouble started as i was driving down the road, now i am trying to find out how to fix it. you can only get it to start up by pushing on the gas some, wont start without the gas. if you let off the gas it will stall, or maybe idle for a few seconds rough then stall. i heard of somthing called the aic. i do not know where its located or what it is. the thing between the airbox and throttle body with the plug in which i think is the mass air sensor thing? i dont know what the problem is. it has a new cold start sensor and fuel pressure regulator on it because we thought they were the problems. any help ?
 

·
Registered
Joined
·
7,033 Posts
Does it run normally once underway? If it chugs and bucks and never gets going, could be a fuel pump or bad ignition components (coil, cap, rotor leads etc.)
 

·
Registered
Joined
·
7 Posts
Discussion Starter · #3 ·
saab

when you hold the throttle at one place it sounds good but one you let off or rev it up or rev it to where your gunna hold it it sounds bad,


also this is what happened.

when a friend was driving it down the road it started acting up i guess then it quit after she tried to keep it going by giving it gas and pumping it.
 

·
Registered
Joined
·
2,220 Posts
It definitely sounds like the AIC isn't working properly:confused:

When you push the gas pedal on a fuel-injected car like the SAAB 900, you're not squirting fuel into the engine like with the old carbureted cars--you're adding extra air. Adding the right amount of extra air is the AIC valve's job.

The AIC is about the size of a soda can, attached to the head just in front of the fuel rail. It has hoses going from the side and the bottom, and an electrical connector on top. Try removing it and flushing it out with WD-40. If this doesn't help, try another one from a junkyard; one from 1988 to 1990 will fit.
 

·
Registered
Joined
·
7 Posts
Discussion Starter · #5 ·
thank

thanks i will try it , it looks like a fuel filter shape kind and is on the passenger side of the motor in the front right? i think thats the aic.
 

·
Registered
Joined
·
7 Posts
Discussion Starter · #8 ·
rpm

by the way before the car died it used to idle high ,around 1500 rpm maybe more, was like that when i got it. i heard that the guy before me could of adjusted it high because aic problems before, maybe used to stall for him so he adjusted throttle higher to keep it running?
 

·
Moderator
Joined
·
4,637 Posts
ProfZ said:
Try removing it and flushing it out with WD-40.
My 900i started similar symptoms a few weeks ago. I pulled the aic valve and flushed it out with carb cleaner, did the same with the AMM, sprayed WD40 on all the electrical connectors' terminals and washed the throttle spring/pivot with WD40 followed by some white lithium grease. Running beautifully after...
 

·
Registered
Joined
·
7 Posts
Discussion Starter · #10 ·
cleaned

cleaned the aic with carb cleaner and wd-40.looks real clean. the problem is still there. i dont think the aic was the problem. maybe fuel filter?
 

·
Banned
Joined
·
5,841 Posts
Have you looked at the air flow meter on the air filter pipe?

It can have a bad connection, take cdaly advice and clean the connections with carb cleaner and see what happens, does your engine check light come on at all? check your dizzy cap and the spark plug leads.

Good luck
 
1 - 12 of 12 Posts
Top