P0430 Code
Lexus Champion
Joined: Apr 2019
Posts: 11,198
Likes: 1,582
From: FL
Sorry to double post. Lights have been intermittent since 230k. Currently at 231,300 and added Cataclean from walmart for $25. I’m not one to use liquid mechanic, but worth a shot instead of ordering a 50 state approved cat that’s “on sale” for $500. They recommend adding when 1/4 tank or approx 4 gallons. I added it and drove highway 15 miles and then filled the tank with Chevron premium (usually jump between Costco gas). I will post an update on my next oil change around 233k.
Another member said nice things about that product.
I've had same code come on randomly a couple of times over the last 2 years and always when traveling out of state and getting junk gas(I'm guessing) at gas stations off the highway I-95 in GA and SC. Then it goes away and doesn't come on for a year.
I might try some just for preventative maintenance if people say it works.
Racer
Joined: Sep 2014
Posts: 1,811
Likes: 91
From: Scottsdale, AZ
Waiting for your update.
Another member said nice things about that product.
I've had same code come on randomly a couple of times over the last 2 years and always when traveling out of state and getting junk gas(I'm guessing) at gas stations off the highway I-95 in GA and SC. Then it goes away and doesn't come on for a year.
I might try some just for preventative maintenance if people say it works.
Another member said nice things about that product.
I've had same code come on randomly a couple of times over the last 2 years and always when traveling out of state and getting junk gas(I'm guessing) at gas stations off the highway I-95 in GA and SC. Then it goes away and doesn't come on for a year.
I might try some just for preventative maintenance if people say it works.
Advanced
Joined: Aug 2002
Posts: 620
Likes: 101
From: Colorado, USA
Sorry to double post. Lights have been intermittent since 230k. Currently at 231,300 and added Cataclean from walmart for $25. I’m not one to use liquid mechanic, but worth a shot instead of ordering a 50 state approved cat that’s “on sale” for $500. They recommend adding when 1/4 tank or approx 4 gallons. I added it and drove highway 15 miles and then filled the tank with Chevron premium (usually jump between Costco gas). I will post an update on my next oil change around 233k.
Now that I have typed that, my guess, our RX lights up like a Christmas tree, but hoping for the best.
Racer
Joined: Sep 2014
Posts: 1,811
Likes: 91
From: Scottsdale, AZ
thats pretty amazing!!! 261,000 miles and counting! i hope mine gets to that point and then some. Heck I plan to drive mine til the wheels fall off so to speak. The loan on mine only has like 2-3 payments left then it will be totally paid off so no more car payments.
Driver School Candidate
Joined: Nov 2020
Posts: 14
Likes: 3
From: CA
Driver School Candidate
Joined: Nov 2020
Posts: 14
Likes: 3
From: CA
I was driving and I believe the TRAC OFF and VSC came on followed by the CEL. I believe there is not correlation, but it trips the stability light. If you google lexus vsc, trac off, and check engine light, there are other models where that light is tripped.
Driver
Joined: Jun 2020
Posts: 77
Likes: 8
From: MD
I have an 04 rx330 with about 280k. I periodically get that P0430 code and when cleared it goes away for a month or 2. Then comes back. Car runs excellent and have not noticed a thing. I was gonna pursue it but decided to leave it alone and keep driving. I think it could be the CAT but have really noticed nothing in the way it drives.
Let me know if you figure it out and also if you decide to clear it and see if it comes back.
Id like to know how you resolve it.
Let me know if you figure it out and also if you decide to clear it and see if it comes back.
Id like to know how you resolve it.
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Driver School Candidate
Joined: Nov 2020
Posts: 14
Likes: 3
From: CA
Christmas Miracle?
Waiting for your update.
Another member said nice things about that product.
I've had same code come on randomly a couple of times over the last 2 years and always when traveling out of state and getting junk gas(I'm guessing) at gas stations off the highway I-95 in GA and SC. Then it goes away and doesn't come on for a year.
I might try some just for preventative maintenance if people say it works.
Another member said nice things about that product.
I've had same code come on randomly a couple of times over the last 2 years and always when traveling out of state and getting junk gas(I'm guessing) at gas stations off the highway I-95 in GA and SC. Then it goes away and doesn't come on for a year.
I might try some just for preventative maintenance if people say it works.
Yesterday during a holiday cruise, the lights turned off near midnight. I usually use Costco and never had an issue, but I might test if Chevron is saving my RX. I was gonna inform my parents the $8 we save on gas might be worth spending at Chevron.
My speedometer might be broken though. I was at a full stop and as I took the photo it showed a climb in MPH.
Driver School Candidate
Joined: Nov 2020
Posts: 14
Likes: 3
From: CA
my Christmas lights turned off during Christmas. I have a small radiator leak but I think it’s just the SUV’s tears of joy to have self erased a CEL.
Racer
Joined: Sep 2014
Posts: 1,811
Likes: 91
From: Scottsdale, AZ
well dont feel too bad; that happened to me about a month and a half ago; one evening after coming out from dinner about to head home; i noticed a small puddle under my car and i was like s----! next day i went to have it looked at only to find out one entire side of my radiator was cracked! i was really saying s---- after finding that out!! then 650 bucks later a new radiator and coolant flush
Driver School Candidate
Joined: Nov 2020
Posts: 14
Likes: 3
From: CA
well dont feel too bad; that happened to me about a month and a half ago; one evening after coming out from dinner about to head home; i noticed a small puddle under my car and i was like s----! next day i went to have it looked at only to find out one entire side of my radiator was cracked! i was really saying s---- after finding that out!! then 650 bucks later a new radiator and coolant flush
Racer
Joined: Sep 2014
Posts: 1,811
Likes: 91
From: Scottsdale, AZ
It was an invisible one for a while. Thought I blew a head gasket. It’s a small leak at the bottom. I’m an aspiring technician and have been contemplating the $100 radiator with lifetime warranty on eBay or remove it and Mickey Mouse some JB weld like I used to pass light and brake inspection for my retired ‘01 Benz E320. I believe there are some high heat adhesive. But I have a feeling by the time I finish the work to remove it, I might just install a new one. I might dislodge it from the radiator mount and see if I can narrow down the leak without using a pressure tester. Then just smear JB weld plastic bonder since it seemed to be on the black plastic side bars of the radiator. The leak is so minimal there is no puddle only lightly seeping out area near the bottom post. I fortunately purchased LED high beams and noticed low coolant, but no overheating issue.
Driver School Candidate
Joined: Nov 2020
Posts: 14
Likes: 3
From: CA
you and i are lucky in that ours didnt overheat because if that were to happen we would really have big problems!. U can try some of that radiator "stop leak" stuff from like autozone or other parts stores as that may fix it at least temporairily. yes the plastic "bars" area where it meets the metal on both sides; well one side of mine was leaking all the way down so realistically there would have been no way to fix it short of replacing it like i had done.
Lexus Champion
Joined: Apr 2019
Posts: 11,198
Likes: 1,582
From: FL
It was an invisible one for a while. Thought I blew a head gasket. It’s a small leak at the bottom. I’m an aspiring technician and have been contemplating the $100 radiator with lifetime warranty on eBay or remove it and Mickey Mouse some JB weld like I used to pass light and brake inspection for my retired ‘01 Benz E320. I believe there are some high heat adhesive. But I have a feeling by the time I finish the work to remove it, I might just install a new one. I might dislodge it from the radiator mount and see if I can narrow down the leak without using a pressure tester. Then just smear JB weld plastic bonder since it seemed to be on the black plastic side bars of the radiator. The leak is so minimal there is no puddle only lightly seeping out area near the bottom post. I fortunately purchased LED high beams and noticed low coolant, but no overheating issue.
Hoping to save some heartache for others- the rx330 has 2 different radiators for vehicles with/without tow package and they do not interchange.
What happened to me is I bought an all Aluminum radiator from local auto part store that said it fit both but they do not- they look similar but the lower mounting brackets are different and it does not fit and cost me a lot of aggrevation returning it and finding one that fit,
I think Rockauto has all Aluminum Denso's but I did not have the luxury of time to wait for delivery- coolant was pouring out the bottom.