01 ford explorer sport trouble code 1451

jr31

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Hello to all! I have a 2001 Ford Explorer Sport V6 4x4 and the check engine light came on last month. The trouble code I get is odb2 1451. I replaced the gas cap, cleared the code, it went away for a week or so but came back on a few days ago. If I untighten and retighten the gas cap and clear the code it will stay off for a couple starts of the engine but seems to keep coming back again?! Is there anything else I should be looking at to fix this problem? Any replies are greatly appreciated in advance!!!
 

Spector

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Code P1451-The canister vent solenoid did not respond to PCM commands. The PCM expects to see
battery voltage when the solenoid is commanded off and voltage under 1 volt when the solenoid is
commanded on. Enabling conditions: Engine running. Blocking Action: This code can block
the following monitors: Fuel Control, O2 monitor, Catalyst Monitor, misfire monitor and EGR
monitor. Testing: Run the engine off and running self tests. If the code does not show up, it is an
intermittent problem. Use a voltmeter to check the operation described. Be sure battery voltage
reaches the solenoid.
 

jr31

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Thank you for your response Spector. . . I would've never guessed the code could go so far. . . . . . . . after your post I noticed some corrosion on the positive post of my battery. I will clean it and let you know what happens. Thank you again!!!!
 

jr31

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No luck here. . . I cleaned the battery cables and installed a new and better battery. Same thing. . . code 1451?! Does anyone else have any suggestions?!
 

Jim Fairbanks

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Have you checked the wiring going to the fuel tank?...Maybe a bad fuel tank pressure sensor(FTP sensor)....Are the connections tight?...Jim
 
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although cleaning the battery cables doesnt hurt, by "battery voltage" spector meant to actually test voltage at the solenoids connector, not the battery. " start there then reply
 
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