jmay24
Aurora Watcher
Adding Green LED Lights for interior Map light, door lights and floor lights
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Post by jmay24 on Mar 25, 2021 23:20:06 GMT -6
Bought a OBD2 scanner today for the 2001 4.0. Cleared the check engine light but it keeps coming back on I don’t trust it to pass the emissions test cause every time I turn it on within a few hours it comes back on. Bought another gas cap but didn’t put it on or sand the gas tank. Could that be the problem? Or is it the canister purge valve? The code is PO443 EVAP
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Post by Marc on Mar 26, 2021 8:09:40 GMT -6
Try cleaning the gas tank filler end. For best results, use a drill and a cup brush. That'll do a much better job than sandpaper.
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jmay24
Aurora Watcher
Adding Green LED Lights for interior Map light, door lights and floor lights
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Post by jmay24 on Mar 26, 2021 23:35:17 GMT -6
Try cleaning the gas tank filler end. For best results, use a drill and a cup brush. That'll do a much better job than sandpaper. Will do. Good thing I have both on hand |
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Post by Marc on Mar 27, 2021 8:03:18 GMT -6
OK!
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Paulaurora
Super Moderator 
Posts: 3,828
Staff Member
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Post by Paulaurora on Mar 28, 2021 9:39:25 GMT -6
common issue . this is a problem with Purge solenoid it self located under the hood on top of TB. For me it was solenoid and after the while plug it self. so check voltage to the plug wiggle around if voltage is not going out means solenoid it self it hold on one screw at the bottom.
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Paulaurora
Super Moderator
Posts: 3,828
Staff Member
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Post by Paulaurora on Mar 28, 2021 9:39:58 GMT -6
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