Welcome to Club Lexus, the world's largest and most active online community of Lexus owners and enthusiasts.
You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Club Lexus community today (click here to register)!
I'm trying to rule out the possibility of water/condensation in my tank as the car sat for close to a year with a pretty empty tank. It's really running rich blowing white smoke and giving random cylinder misfire codes. I put 10 gallons fresh fuel and some water absorber treatment with no luck yet. I plan on letting my 17 year old use it for school and work only because he's a damn good kid.
This ad is not displayed to registered members. Register your free account today and become a member on Club Lexus!
your problem is not because of gas, you might have a had a coil die
It's kind of weird. After I disconnected the batt and it was cold, I started it and no codes even after idling for a few but it still smoked and idled rough. After a min or two I took it around the block and the codes show up. First time it was cylinder misfire 2 & 4. Parked, waited about 10 mins drove around the block again, rescanned and it said cylinders 6 & 8. I tried it again yesterday and only got cylinder misfire on 2. Does this still sound like it could be a coil issue?
it doesnt sound like it has to do with the fuel itself, more likely clogged injectors or some sort of electronic ignition/ecu issue.
1. Black on Black 1999 LS400 PM-spec
-Maya-Megan-Magnaflow-LSportline-Xenondepot-Hankook-Duce-Platinum VIP-Figs Engineering-R1Concepts-
2. 1989 Toyota Supra white package
Current Status: -500 Internal System Error-
3. Black 2004 IS300 -Manaray-HKS-Eibach-
4. Ebony Teal 1995 LS400 11-8-06
I'd start by draining the fuel, and then filling up 1/2 tank of high octane fuel, and adding a can of good fuel system cleaner, such as BG44K or Techron. Run it through the engine and see where that takes you. If that does not improve things, do a full tune up and check that the timing belt is aligned properly.
Also, to eliminate the possibility of a bad ignition coil, switch them places. If you're getting misfire codes on 2, 4, 6, 8, you will get them on 1, 3, 5, 7 after switching coils, if one of them is bad.