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Code 436-New O2 Sensor? 850 1994

posted by  tmannian on  Wed Dec 1 16:10 CST 2010
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last visit: Sat Sep 20 10:31 CST 2014
[RELATED]

So, my way of fixing/checking

1st, reset and see if it comes back
2nd compression test
3rd check fuel pressure
4th test ro2s*
5th replace front

I feel like I've written this whole procedure out recently...



*To test RO2S
-Ignition on.
-Fuel pressure gauge connected.
-Squeeze the hose between the EVAP valve and the intake manifold with hose pliers 115 8957. DTC for the EVAP system can be set.
-Start the engine and let it run at idling speed until the rear HO2S begins operating.
-The rear HO2S begins operating a short while after the rear HO2S preheating starts.
-Increase fuel pressure by squeezing the hose after the fuel pressure regulator with hose pliers 115 8957.
Voltage across the rear HO2S should rise to approx. 0.8 V.
-Remove the hose pliers.
-Undo the hose for the combined instrument at the intake manifold.
-Voltage across the rear HO2S should drop to approx. 0 V.
--
If you're not driving it "like its stolen," are you really driving?






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New Code 436-New O2 Sensor? [850][1994]
posted by  chrispalmer  on Sat Nov 27 07:09 CST 2010 >


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