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Old 08-14-2008, 01:11 PM
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shorod shorod is offline
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Re: engine code PO 433 what does it mean?

Quote:
Originally Posted by dalt1
I also have this same year car with the P0443 code.

I pulled the purge valve off and verified electricly is was energizing and it actually blocked air when energized.

Would love some help on this one.
So you're getting a P0443 rather than the subject P0433?

P0443, according to the factory service manual, indicates a failure in the EVAP canister purge valve circuit.

Possible causes:

-- VPWR circuit open.

-- EVAP canister purge valve circuit open.

-- EVAP canister purge valve circuit shorted to PWR GND.

-- EVAP canister purge valve circuit shorted to VPWR.

-- Damaged EVAP canister purge valve.

-- Damaged PCM.

Were you bench testing the valve (wiring battery voltage to it), or testing for flow under PCM control?

-Rod
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