Vacuum canister purge valve?

2004 NISSAN FRONTIER
179,000 MILES • 3.3L • V6 • 4WD • AUTOMATIC
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CHASE156
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I have 13.8 volts at the connector, when plugging it in to the solenoid it drops to 3/4 of a volt and does not open solenoid. When connected to the battery directly it opens.
Nov 11, 2022 at 11:53 AM
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STRAILER
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So, what happens is sometimes the voltage driver for the EVAP solenoid goes out and it can sustain the current draw. Here are the wiring diagrams so you can see how the EVAP valve is wired to the ECM, you might want to remove the ECM connector and check for corrosion. Here is the ECM location and how to replace it just in case you need it. Check out the images (below). Please let us know what you find. We are interested to see what it is.

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Nov 11, 2022 at 1:26 PM
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CHASE156
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If I disconnect the ECU will it have to be reprogrammed?
Nov 11, 2022 at 2:36 PM
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STRAILER
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Nope, you can disconnect the battery to be safe. Let me know.
Nov 12, 2022 at 9:34 AM
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CHASE156
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Hello Ken, thank you for your help. it ended up being an intermittent purge valve.
Nov 17, 2022 at 7:52 AM
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STRAILER
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Thanks for getting back to me. Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help.
Nov 17, 2022 at 5:13 PM