By John Aguilar
As I came out of a tight turn and accelerated, the engine hesitated and lost power but kept running. The check engine and automatic steering control (ASC) lights illuminated and stayed on. I limped off the highway, drove to a safe stopping place with limited power (especially up hill) and turned off the engine. When I restarted the engine all cautions were cleared and the engine ran fine. Diagnosis revealed condition code P0300, random cylinder misfires, but the engine continues to run fine. Are the ASC light illumination and random misfires related to each other and to the tight turn event? What is the likely cause?
So im just wondering if im seeing this right .....i have been bitten by the apparent lexus goblin ....no response from gas pedal until the very bottom and search google found this cool site and posts from as far back as 2011 i believe and although i may have missed it NO SOLUTION....plenty of remedys and band aids but no real fix and lexus has been having these same problems with their cars from 98 to i think i saw someone post about a 2011 with the problem ...and still no solutions ...really? Or did i just miss them lol
im new in the Forum and live in Europe. I drive my Lexus LS430 since 3.5 Years. As you can probably read im not a native English but i will try my best.
Ive got an Error on my Boardcomputer. It only say Check VSC. As far asi know this is an Error wich has an other root. I checked i with the Lexus guys and we found an Error on the OBD wich says that there is a valve damaged on the Air intake. As far as i understood him right, there is an valve wich swich on and off the last 2 Cylinders in a higher RPM Range.
Now i do not exactly understand the reason for this valve and i also do not know under wich Name i can search something like this. Do you have any suggesteon, where i can find some explanation about that valve, and Probably a spare Part?
Thanks for your Help
By Austin Isikhuemen
Happy to join the club forum. Read previous contributions on several subjects including VSC indicator light on issues. Glad to have you guys with loads of experiences to share.
I am based in Nigeria but just bought a US used ES 350 2009. Drove the car yesterday and it was sweet to handle, to say the least.
Will be glad to share my experiences with you folks going forward.
Over a week ago we brought our ’06 RX330 in for service to replace a fitting on the engine that had been leaking coolant, eventually causing overheating.
We got it back a day later, and it ran fine. However, this past Tuesday, the CEL (Check Engine Light), VSC and TRAC OFF lights came on, all at the same time, and have remained lit since.
I dug on the internet to find some solutions and/or troubleshooting, and was met with quite a bit of information. However, I wanted to ask any RX330 owners here if they have experienced the same thing.
In the meantime, I took the following troubleshooting steps:
I checked the fuel cap to make sure it wasn’t loose. As a further safeguard, I bought a new one ($15) and put it on. CEL remained on, as did the VSC and TRAC OFF. I went to Pep Boys to have them scan and pull a code. It read P0420: (Catalyst System Efficiency Below Threshold (Bank 1)). Now, this same site lists a whole series of tests to perform before heading out and laying down some $$$ for a new cat. So I’ve decided to go through a few of them:
I took the car for a test drive and listened for any inconsistencies and/or rough idling, etc. I found none, and engine was running smoothly between 1-2K RPM as usual.
I bought some fuel injection cleaner, fuel cleaner, and a can of MAF Sensor cleaner just in case. Right now I’m at a little under half a tank of 87 gas, so I’m going to wait until it’s under a quarter tank and pour in a bottle of the fuel cleaner or CataClean and see what happens.
Today I’m going to check the air filter and possibly the spark plugs if I have time, to see if they’re all mucked up. I guess that’s the best time to clean the MAF sensor as well.
So, that’s my process so far. Is there anything else I should take a look at? I’ve heard about checking and/or replacing O2 sensors but not sure if that’s really the issue here, but would love to hear your input.
Thanks for listening, and would love to hear your feedback.