All of a sudden these lights came on and its flashing check vsc...

the only thing i noticed was when i put it into manual mode it goes straight to 2 and not 1....

any idea what it is...hopefully not a costly fix

 

Start with the battery. If it's weak, lots of warnings hit and the dash looks like a Christmas tree. If your battery is good, you'll need to plug into the diagnostic port with a code reading device to see what codes are set. You are in limp mode right now, so something is really unhappy, but without and DTCs (codes) it's very difficult to say what might be the issue.

 

There was a similar thread with someone describing the same symptoms as you. The problem turned out to be the battery. GL with getting your car back into shape bro!

Edit: I found the thread, but not sure if its the same symptoms. Hope this helps bro,GL! : https://www.clublexus.com/forums/is-...n-driving.html

 

so wierd i plugged in my reader and everything just disappeared

 

happened to me after a hard launch. Seems like system had data issues

 

I got this too about 4 months ago (exact same symptoms) turned out my exhaust gaskets were leaking.

 

Ditto on the exhaust thing. Mine was an 02 sensor, went off randomly a few times and hasn't been back on in over a year. The car ran perfectly, just the vsc,cel, and traction lights went on.

 

yeah its randomly goin on and off i think it may be my gasket as well cause my car is slammed nad i fel tmy midpipe hit something

 

alright guys ended up pullin the code, P0430- Catalyst System Efficiency Below Threshold (Bank 2) , whats that mean?

 

That sounds like O2 sensor on passenger side header. Don't you have PPE headers? I had a similar issue after my header install. But my code was air fuel ratio sensor on the driver side header. But since yours is the O2 sensor on the passenger side it could be a bad sensor or the conditioner went bad. Probably the sensor. PPE conditioner does not eliminate the O2 sensors in the mix. Anyways, do not buy the sensor from a dealer. It's a Denso sensor. Part number Denso 234-4521.

Amazon $67 shipped.


It could also be a exhaust leak, where the header meets the exhaust. The O2 sensor is right after that.

 

I just received my o2 sensors from Amazon.. it looks great!

 

thanks good sir! i have the stock headers right now...i think i know what caused this...being too low i felt my midpipe or somethin hit a bump...and thanks a ton for the link!