woodlb

I'm new to the forum, and am having trouble with my car . on Dec 20th my car wouldn't start at first I thought the timing belt broke , (thats how it sounded ) but NO after a while it started . however after a few day of driving it began to idle rough after warmup then i noticed that the VSC on and VSC off light was on and the backup light on as well . what is wrong?:

A1cntrler

iTrader: (2)

Hello and welcome!

You've posted your issue in the IS forums. You might find more help in the GS section.

https://www.clublexus.com/forums/gs-models-4/

Good Luck!

kickin8

iTrader: (1)

moved to 2GS section

Brotherbob

What codes does it have? Either buy a cheap code reader or go to a FLAPs get them read and report back.
BB

woodlb

Thanks BB i will do this over the weekend and get back to you

woodlb

The codes are PO155 pass. side upstream
P1349 undetermined
PO 155 sensor bank 2

wbmx1981

P1349 is the oil control valve. Its either bad or dirty. If it has never been changed or cleaned then it's more than likely on its way out. Search P1349 and you'll see lots of talk about it.

woodlb

UPDATE , I took the OCV apart and cleaned the small filter with carb cleaner, disconnected the neg side of the Batt to clear the faults . Just so happened that the rear light fault was on because I did have a rear light out . Replaced that and all is well in my world again!!!! thank you for your help.

wbmx1981

Glad to hear that you got it fixed.