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O2 sensor heater control system 200 1989

uid 27's pic
posted by  Art Benstein on  Tue Feb 18 06:47 CST 2020
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last visit: Fri Oct 17 20:10 CST 2014
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The oxygen sensor heater shares fuse 4 with the fuel pump in the tank. Fuse 4 is only activated by the fuel pump relay, so it is on with the engine running, but not if you merely turn the ignition key on.
--
Art Benstein near Baltimore

What engineers say and what they mean by it:
Engineering says: "Preliminary operational tests are inconclusive"
Engineers meant: The darn thing blew up when we threw the switch.






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New O2 sensor heater control system [200][1989]
posted by  Maxspeed subscriber  on Tue Feb 18 02:28 CST 2020 >


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