MAS restrictor
Newbie
Joined: Jun 2001
Posts: 61
Likes: 0
From: Renton WA
Let me attempt to spread some knowledge here:
The 98+ mirage 1.8L uses a different MAF from what you pulled off of Mitch's website. The MAF picture you posted is the 93-97 style MAF. It uses a different connector. The 98+ MAF is probably almost exactly the same as yours (I think mine necks down to 2" diameter or something really small...haven't measured it yet).
To remove the restrictor:
Take a good sharp razor/boxcutter, remove the MAF from vehicle, now look at the edge of the restrictor. There is a little "lip" area around it. Cut slowly and not too deep around the edge following that lip. The restrictor should come right off now. If you don't re-fix something in its place you have to use a sensor safe glue/silicon/adhesive/etc to keep the honeycomb in place. Now you will need the SAFC ($285 shipped from www.german-autowerks.com) or HKS SAFR ($320??) or my personal favorite: the Greddy E-Manage to adjust the fueling. Not only will this give more power BUT this also extends your fuel maps for turbo use since more air is bypassed. Now you can even flip the MAF upside down and remove the silicone and unscrew the mixture screw to back it out until it is flush for more airflow.
If you don't have any good tuning tools just use a voltmeter off of the 1st O2 sensor signal wire and tune the fuel curve so you get atleast 0.95V off of the O2 sensor at WOT. Tune the low throttle position so that there is no bucking, hesitation, check engine lights, etc and you should be fine. This is only for rough tuning to get it driveable.
The 98+ mirage 1.8L uses a different MAF from what you pulled off of Mitch's website. The MAF picture you posted is the 93-97 style MAF. It uses a different connector. The 98+ MAF is probably almost exactly the same as yours (I think mine necks down to 2" diameter or something really small...haven't measured it yet).
To remove the restrictor:
Take a good sharp razor/boxcutter, remove the MAF from vehicle, now look at the edge of the restrictor. There is a little "lip" area around it. Cut slowly and not too deep around the edge following that lip. The restrictor should come right off now. If you don't re-fix something in its place you have to use a sensor safe glue/silicon/adhesive/etc to keep the honeycomb in place. Now you will need the SAFC ($285 shipped from www.german-autowerks.com) or HKS SAFR ($320??) or my personal favorite: the Greddy E-Manage to adjust the fueling. Not only will this give more power BUT this also extends your fuel maps for turbo use since more air is bypassed. Now you can even flip the MAF upside down and remove the silicone and unscrew the mixture screw to back it out until it is flush for more airflow.
If you don't have any good tuning tools just use a voltmeter off of the 1st O2 sensor signal wire and tune the fuel curve so you get atleast 0.95V off of the O2 sensor at WOT. Tune the low throttle position so that there is no bucking, hesitation, check engine lights, etc and you should be fine. This is only for rough tuning to get it driveable.
dude
Hey it's WADAD
You certainly haven't lost your touch with the technical stuff. I was always amazed that even at your moments of utmost technicality, you still seemed to retain clarity.
As for the MAF sensor I have learned previously from the mirage board that it is not to be taken lightly. Be careful what you do with that otherwise...problems.
WADAD
You certainly haven't lost your touch with the technical stuff. I was always amazed that even at your moments of utmost technicality, you still seemed to retain clarity.
As for the MAF sensor I have learned previously from the mirage board that it is not to be taken lightly. Be careful what you do with that otherwise...problems.
WADAD
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