Ecko508

iTrader: (2)

The car also starts differently now, little sputtering when starting would this have anything to do with the O2 sensor? I'm baffled lately

Ecko508

iTrader: (2)

So the verdict is in on what's wrong with my car, been at the dealer for 3 days. Car needs new injectors I got bad gasoline from a local station. Just a heads up for you guys when getting premium fuel. I guess the gas station does matter!

rex2lex

Bad gas is rare, but does happen. Google/Bing it and you'll find a bunch of newspaper stories of bad gas shipments and shady gas stations. Glad you got it figured out and you can enjoy your ride again.

Ecko508

iTrader: (2)

Lexus called stated all 6 injectors need to be replaced. Kind of scary the car only has 8k miles now. How long have they been bad for and did it cause damage to the engine? They are running a few more tests on the car and said they'll call me back later this evening. I'll let you guys know of any updates

rex2lex

All 6 injectors, that sucks. I'm no mechanic by any means, but from what I gather, bad gas leaving varnish deposit in the injectors usually takes time to build up and can also be cleaned out. If the gas didn't have the proper dispersant-detergent additives, it could cause the injectors to clog as well. If it was water in the gas you'd probably have more issues than just injectors. Usually they can be cleaned, but if it's covered under warranty, you might as well let them put new ones in.

If it is a correct diagnosis, and bad gas ruined the injectors, I would guess that it also affected the injector spray pattern, which could mean the car was running lean. If it ran lean for an extended period of time, there's a possibility there may be engine damage as well. I'd have them do a compression test, just to make sure.

Ecko508

iTrader: (2)

Well they didn't replace them apparently it's all set, the service advisor called said it was all good nothing needed to be replaced which leads me to believe that they cleaned them out or reset the ECU I'm not sure. I'm not sure the procedure they use to do it but the car runs a hell of a lot better! Hopefully no engine damage was done

rex2lex

That's good news actually. If they didn't replace them, then ya, they probably just cleaned them. Maybe the gas had debris in it (does happen) that clogged them up. If that's all they did then the engine is probably fine. I wouldn't worry about it. Enjoy your ride again.