Re: '90 SPG... n/m - Saab Performance Bulletin Board - Saabnet.com
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Re: '90 SPG... n/m
Posted by Brad [Email] (more from Brad) on Wed, 14 Nov 2001 15:40:06
In Reply to: '90 SPG... n/m, Jon
[Profile/Gallery]
, Wed, 14 Nov 2001 10:48:56
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The 1990 900 does not have a switch for the overboost. It is built into the programing of the LH ECU. It compares air mass meter output voltage to RPM. When the mass get to large of a given RPM it shuts the system down.
It took me ten years to get arount this probelm.
The cure. Install 30# injectors and add a resistor to the out put wire of the air mass meter to lean the car back down into the range the ECU can control. The normal range is 300 ohms to 600 ohms.
If your need more info I will be glad to help.
Brad
George's Imports Ltd.
posted by 65.90.201.1...
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