Code P1083-HCAC Valve Stuck Open (LS600HL)
Thread Starter
Driver School Candidate
Joined: Jan 2004
Posts: 12
Likes: 2
From: Illinois
Code P1083-HCAC Valve Stuck Open (LS600HL)
Hello Lexus Community. I am the proud owner of a 2008 LS600hl with 141,000 miles. I love the car, but the check engine light is now on permanently and the estimated repair charge from my lexus dealership is outrageously expensive ($7563 plus Tax). Here is the official diagnosis and recommendation.
"Code P1083 - HCAC Valve Stuck Open in Bank 2 - Recommend Replacing Y- Pipe With HC Absorber - Possibly May Need Exhaust 2 Sensors with Exhaust Gaskets - $7563 + Tax."
I love the car, but can't afford this repair yet I can't stand seeing the Check Engine Light.
I would appreciate any advice.
Thanks!!!!
"Code P1083 - HCAC Valve Stuck Open in Bank 2 - Recommend Replacing Y- Pipe With HC Absorber - Possibly May Need Exhaust 2 Sensors with Exhaust Gaskets - $7563 + Tax."
I love the car, but can't afford this repair yet I can't stand seeing the Check Engine Light.
I would appreciate any advice.
Thanks!!!!
Lead Lap
Joined: Jul 2010
Posts: 4,785
Likes: 154
From: The South
I believe this was the same issue another hybrid member had recently that posted here. Needless to say, so glad I dumped my 600hL. May want to look at this post I found with a simple search on P1083.
https://www.clublexus.com/forums/ls-...-ls-600hl.html
Also, I believe the Carista App or Techstream can reset that light for you ;-)
https://www.clublexus.com/forums/ls-...-ls-600hl.html
Also, I believe the Carista App or Techstream can reset that light for you ;-)
Last edited by CJITTY; May 24, 2016 at 10:03 AM.
Lexus Test Driver
Joined: Nov 2015
Posts: 1,302
Likes: 17
From: CA
Assuming this failure is the same as the others in that other thread, that part fails like clockwork at enormous expense.
Didn't someone else just buy a used hybrid and posted about it here. I wonder if his was pre or post failure and if it was pre, ouch to that poor soul.
Didn't someone else just buy a used hybrid and posted about it here. I wonder if his was pre or post failure and if it was pre, ouch to that poor soul.
Thread Starter
Driver School Candidate
Joined: Jan 2004
Posts: 12
Likes: 2
From: Illinois
Yeah...this is painful. I've had it reset 3-4 times. The first time it stayed off for a couple months, but now it seems permanent. No apparent impact on performance but I hate seeing the check engine light and for a fully dealer maintained vehicle it's unacceptable to live with a CEL.
I purchased the car for $53k in 2011 with 50k miles so at least I didn't get slammed with the full load and it still looks great.
Thanks Lexus community.....I have to figure this one out. I will keep you updated.
I purchased the car for $53k in 2011 with 50k miles so at least I didn't get slammed with the full load and it still looks great.
Thanks Lexus community.....I have to figure this one out. I will keep you updated.
Lead Lap
Joined: Oct 2012
Posts: 722
Likes: 61
From: Co
Cut a small piece of electrical tape and put it over the check engine light bulb on the instrument cluster so it isn't glowing in your face, then just get back to enjoying life. I've had customers who didn't have the money or want to do the repairs and I would tell them it's your car just cover the light then. Many did and drove another 100k no problem. Emission testing areas are another story if they require the light to function correctly. In Denver early on your light had to work right or you failed. Then after a few years it changed to the light could stay on and if you passed the tailpipe test you still passed emissions. Just a couple years ago they went back to the light must work correctly for you to pass.
Last edited by Kennyr44; May 24, 2016 at 09:42 PM.
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Lexus Test Driver
Joined: Nov 2015
Posts: 1,302
Likes: 17
From: CA
Call Lexus corporate and see if they can offer help. If I'm not mistaken, others were able to negotiate a discount on repairs by them paying for parts and you the labor, especially since this seems to be a common problem. Be sure to mention that.
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Thread Starter
Driver School Candidate
Joined: Jan 2004
Posts: 12
Likes: 2
From: Illinois
Cut a small piece of electrical tape and put it over the check engine light bulb on the instrument cluster so it isn't glowing in your face, then just get back to enjoying life. I've had customers who didn't have the money or want to do the repairs and I would tell them it's your car just cover the light then. Many did and drove another 100k no problem. Emission testing areas are another story if they require the light to function correctly. In Denver early on your light had to work right or you failed. Then after a few years it changed to the light could stay on and if you passed the tailpipe test you still passed emissions. Just a couple years ago they went back to the light must work correctly for you to pass.
Rookie
Joined: Oct 2018
Posts: 47
Likes: 45
From: GA
Driver School Candidate
Joined: Oct 2020
Posts: 11
Likes: 0
From: TX
I have the same issue with the hydrocarbon... whatever happened to your WD40 effort? Were you able to get the valve unstuck from a always open position? Thanks in advance!
Intermediate
Joined: Jun 2014
Posts: 396
Likes: 60
From: QC
From your experience do you know if it would be possible to grease it without dropping the exhaust pipe ? Do you need to cut open a hole in the pipe ?