Hey all,

The CEL came on again the other day while driving around town. Took it in to Autozone to have the code read and it came back with the p0441 again. So a few weeks ago I bought this thing as my weekend car to get out of the city (realizing it would need work). When I first took it to the shop to have it looked over they said it was throwing the same code. They did a smoke test, nothing was leaking, so they cleared the code (assumed it had to do with the cracked exhaust manifold they welded together or a bad sensor). Drove it to VA and back no problem. Just came back on the other day.

I've done a lot of reading and googling on this the last couple of days and would like the community's opinion. Assuming nothing has cracked or fallen apart since the smoke test, I would think it's probably the LDP. Is there a way to test if that's the culprit rather than say the purge solenoid or carbon canister? I already ordered a new gas cap since it seems like the cheapest easiest fix potentially.

Pretty new to all this still...
Thanks in advance!

 

It would help to know what year this XJ is and what engine you have.

 

Ah man I thought I had updated that stuff in my profile to show up when i posted. Sorry.

It's a '99 4.0L 6I

 

Diagnostics:

 

You did. I just didn't look good enough.

 

Nah I updated after your post haha

 

Don't make me come over there....

 

Hey look, he added his location!

I wouldn't worry too much until you've changed the gas cap. The LDP often sets a unique code if it fails and you smoked the rest of the system.

 

Agreed about the gas cap, but I think he's dealing with a No Flow issue not a Leak. See 'Set Condition' on page 122 of the P0441 diagnostics.

 

Thanks Ken, that's what I get for skimming instead of reading.