P0442 code and CEL - 2012 LR4

Jimmy Brooks

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Just got this same code today, same occurrence of events with the warning first that was then greeted with a CEL. Is it even worth going through my indi shop to have them put dye in and pressure test or should I just pull the trigger and buy the pipe and install it myself?
 

Brizzity

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If you’re capable of doing the swap yourself, it’s probably worth just trying that yourself first. Part # is LR010806 and I paid $120 for it back when I did it. It took me maybe 20 minutes to do.
 

mm3846

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CEL on mine popped up once since the fix, went away on its own the next day. I'd DIY, its a very easy swap.
 

Jimmy Brooks

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Think I’m going to pull the trigger and do it myself, I’ve had an issue too where when I start my car after filling up with fuel it will barely start but only after filling up. Any other time it will start just fine, it’s done this for 2 fill ups consistently. This was the first thing that came up once I looked it up. I’d say it’s safe to assume that’s the issue.
 

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jlglr4

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Purge valves do go bad eventually, so even if that turns out not to be your problem, it is not a complete waste to refresh that part.

Please do let us know if it works. I was corresponding with someone on another forum about a similar issue - strange behavior after fill-ups - and suspected the purge valve or the charcoal canister, or possibly a fuel filler neck issue.
 

mm3846

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Purge valves do go bad eventually, so even if that turns out not to be your problem, it is not a complete waste to refresh that part.

Please do let us know if it works. I was corresponding with someone on another forum about a similar issue - strange behavior after fill-ups - and suspected the purge valve or the charcoal canister, or possibly a fuel filler neck issue.
Purge valve and DTML pump fixed it in my truck. I could barely get fuel in. Make sure you blow some air through the charcoal canister before you put the new pump on, too.
 

Jimmy Brooks

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Purge valves do go bad eventually, so even if that turns out not to be your problem, it is not a complete waste to refresh that part.

Please do let us know if it works. I was corresponding with someone on another forum about a similar issue - strange behavior after fill-ups - and suspected the purge valve or the charcoal canister, or possibly a fuel filler neck issue.
Sorry for the late response but I just got around to doing the job, truck is fixed, starts perfectly after fill ups and the CEL is gone.
 

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