Do I really need to block off the FIAV? or Can I just loop the coolent line? Is there a difference?
FIAV Block?
TommyDSM
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I have been driving for about 2 years on my car with the FIAV just disconnected and the coolant lines blocked off. Do not loop the coolant lines into each other, overheating issues can occure.
I couldnt get the damn screws on the FIAV to come out and I really wasnt in the mood to break the only working TB I had at the time.
I couldnt get the damn screws on the FIAV to come out and I really wasnt in the mood to break the only working TB I had at the time.
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1,484 Posts
Well I guess you are lucky. When most people simply disconnect the lines the wax pellet never melts, so you always get the higher airflow. This causes you to have a high idle, and there is no way to lower it. The only solution is to block the airflow allowed by the FIAV. On a 91+ it is easy, not so on a 90 TB.Nanan said:
Why would that happen? In a stock configuration the coolant goes into the TB then goes back out at almost exactly the same temperature. Why would having the coolant skipping the TB (where it's only purpose is to melt a wax pellet) cause your car to overheat? There is no valid connection between these two events.Nanan said:
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That would not accomplish anything. The coolant does not enter the air path. They are completely separated. The coolant melt a wax pellet, which in turn closes a air passage, it is this air passage that we want to permanently close.zack said:
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11,002 Posts
Which is exactly why I shy away from 90's... as I've already gotten yelled at for that statement. I'll leave it there. 
But in my slight experience, that plate on the 90 doesn't come off so easy. Those screws strip in one bad turn. Making a shaky job more annoying than it already was. Great thread I learned something today.
But in my slight experience, that plate on the 90 doesn't come off so easy. Those screws strip in one bad turn. Making a shaky job more annoying than it already was. Great thread I learned something today.
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701 Posts
The interesting thing is that CAPS only lists one Part number for a 1G turbo.
MD614454 - "Valve, Fast Idle Air." (In case anyone cared)
The 90 model FIAV obviously looks differnt tho?
MD614454 - "Valve, Fast Idle Air." (In case anyone cared)
The 90 model FIAV obviously looks differnt tho?
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1,484 Posts
I've never looked closely at a 91+. The FIAV itself might be the same, the TB it goes into is definatly different.Brandon92DSM said:
I wouldn't be suprised with CAPS being wrong, I've learned that a 90 is almost like a pre-1G. Something is different at all the worst times. Luckily i got a e-prom ecu for free
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Sorry it took so long for me to answer, but I've been away from the board for a while.
I got my FIAV from http://www.mitsupartsdirect.com/. I would highly recommend them. Their service and parts were awesome.
I did have trouble getting out those nasty little screws, too, so what I did was use a small chisel, stuck it in the groove where you would normally put the screwdriver, and then tapped it with a hammer to loosen it. They came out very easily after that, and went back in okay.
Hope this helps.
I got my FIAV from http://www.mitsupartsdirect.com/. I would highly recommend them. Their service and parts were awesome.
I did have trouble getting out those nasty little screws, too, so what I did was use a small chisel, stuck it in the groove where you would normally put the screwdriver, and then tapped it with a hammer to loosen it. They came out very easily after that, and went back in okay.
Hope this helps.
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96 Posts
Sorry. The price was in my original post. $135.00 shipped. Great price and great part. I'm still very happy I did that.zack said:
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