Re: Hunch throttle switch - Saab 900 Bulletin Board - Saabnet.com
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Re: Hunch throttle switch
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Posted by JohnK (more from JohnK) on Thu, 2 May 2002 18:28:43 Share Post by Email
In Reply to: Re: Hunch throttle switch, RayV, Thu, 2 May 2002 17:07:28
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Best plugs. I'll bet your TPS is adjusted right, but check it anyway. Something might be wrong when the WOT signal hits the ECU and AMM. After thinking about this, maybe the connections are not 100% at AMM or ECU or O2 sensor, or your AMM is on the way out. If you get any surging or flat spots, suspect AMM. If your AMM is adjustable(88?), you might try adjusting the screw a tad richer. Also try disconnecting the connector on the WOT side of the TPS to see what happens if you purposely stay in closed loop. If the blink stops, then you know it's the change to open loop that's the problem. One of the posts referred to this as a common issue and suspected that the AMM was not quick enough. This suggests a momentary "too lean" when the system goes from closed to open loop. I have to take a look at my bosch injection manual...confusing myself!

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