Hi,
the other day when i was changing my spark plugs i notice a puddle of oil ontop of them, so i decided to order some valve cover gaskets to replace. In the meantime awaiting for my gaskets to ship, the CEL turns on and throws a code 25. Could this be because of the VCG??? my gasksets should arrive soon and wondering if i should change that first and see if thats the culprit or perhaps if its another cause. Any ideas or suggestiongs?
Thx

 

Kinda strange man...

Code 25 - Air-Fuel ratio lean malfunction
http://www.troublecodes.net/Lexus/

 

i threw that code...it was front two oxygen sensors. But I would do more research since it's a little pricey for OEM.