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Engine suddenly dies but restarts immediately
Posted by danack55 [Email] (more from danack55) on Mon, 19 Jan 2009 08:02:27
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99 Viggen, 60K. Problem started with no idle when engine cold, but OK after 5 minutes or driving. Then sudden loss of engine power while driving (feels like ignition or fuel injection is suddenly cut off, but all other electrical functions are running). Shifted in neutral, engine stopped while still rolling. Turning ignition key off and immediately on which allows to restart and continue driving (so I guess something is reset in the electronic controls - but what?).
Problem occured randomly after driving 5, 15 and 25 miles, but then was OK to drive home the next 75 miles on highway. CEL came on: codes are P1230, P1261 and P0133. Does anyone have a similar experience and a rational explanation for what happened?
I read several messages incriminating the throttle body (TB: $$$) and position switch/sensor (TPS) with resulting limp-home mode, but my car never went in limp-home mode.
The latest symptom is that when I turn on the ignition key and the computer does its checks I can hear some sort of relay connecting and disconnecting in the Throttle body 3 or 4 times. Have not tried to crank it since.
Note: had CEL P0133 4 months ago, replaced exhaust and both O2 sensors and was OK until above happened. Any suggestion is greatly appreciated.
posted by 65.110.14...
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