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Got two CEL codes this morning...


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While cruising on the highway this morning, the check engine light came on, along with a blinking cruise control light. I used the internal diagnostic feature to grab these two codes:

 

P0452 - Evaporative Emission Control System Pressure Sensor Low Input

P1443 - Vent Control Solenoid Valve Function Problem

 

I just got a new tank of gas the night before, if that matters at all, but otherwise, nothing out of the ordinary.

 

Thoughts?

The Dude - Two inches and counting...:lol:
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Dammit, I hope that I didn't loosen anything up during my sound deadening install (two days ago, I drove a whole day without any problems). I was placing sheets of that stuff under the back seat. I made sure to steer clear of the wiring, but does the fuel pressure sensor have a wire that is inside of the car (eg, could I have caused this)?
The Dude - Two inches and counting...:lol:
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OKay I reset the ECU by yanking the battery terminal and hitting the brake for 30 sec. I also checked that the gas cap was on tight. We'll see what happens this afternoon when I drive home. Given these CEL codes (that I don't fully understand), there is no need to worry about a 30 mile drive, right?
The Dude - Two inches and counting...:lol:
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I'll see if the codes go away this weekend...I have a 30+ mile drive home tonight and a 120 mile round trip tomorrow. If all goes well then, I think we're good to go and it will be case closed.

 

1k posts, baby!

The Dude - Two inches and counting...:lol:
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Well after clearing the ECU and the putting the gas cap back on, it went away...for about 50 miles. It came back while I was about 40 miles away form home (of course), so I just continued on to my destination and drove back without any noticeable problems. Time for the dealer?
The Dude - Two inches and counting...:lol:
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Vacation Pics - 18 - Diagnostic Procedures With Diagnostic Trouble Codes.pdf

Walk through this first before going to the dealer. Also check everything under the rear seat and make sure you didnt knock something loose :spin:

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Before I got a chance to walk through the diagnostic stuff, the CEL went away, just like that. I still have an appointment scheduled, but I'll cancel if it doesn't come back by the end of the week.
The Dude - Two inches and counting...:lol:
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  • 3 weeks later...

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