lexus_ne

hrhino2, Thanks for the suggestion. I will check it out. I also googled the Internet, below is a list of things that could go wrong for the code P1130. P1130 A/F Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1) Open or short in A/F sensor circuit A/F sensor Air induction system Fuel pressure Injector ECM I opened the hook and looked around, but didn't see anything loose. I wiggled a few things and all connections seem to be fine. I will start looking into replacing the A/F sensor. Does anybody know the part number by any chance? Can I get it from a Toyota dealership? Will the Check Engine Light automatically turn off if I happen to fix the problem? Or do I have to manually reset it from somewhere? Cheers

hrhino2, Thanks for the suggestion. I will check it out. I also googled the Internet, below is a list of things that could go wrong for the code P1130. P1130 A/F Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1) Open or short in A/F sensor circuit A/F sensor Air induction system Fuel pressure Injector ECM

X2- That's the ONLY way you can know what the problem is. If you are competent to do your own work, my recommendation to ANYONE who does, is to spend the money to get a half way decent scanner, probably less than $100. and for a really basic code reader, less than $50. As the car gets older, you're going to need it more and more if you keep it. Gives you a fighting chance of not having your bank account emptied in one swift motion. Knowledge is power and only the ignorant don't want at least the power to keep from being ripped off. Totally agree. Actually while I was at the local Advanced Parts store to have them scan the code, I did a quick browse of their scanners. They range from $50 to $200. Any particular brand/type you would recommend?

Thanks for the tip. I stopped by my local Advanced Parts store and they did a scan. The failure code is P1130: Fuel Air Metering. I'm doing the research right now. Cheers,

The check engine light on my 2000 RX300 turned on when I drove home on New Year's eve. I continued driving for ~20 miles and got home alright. How do I go about figuring out what the problem is? Cheers,

Thanks a lot for the suggestions! You guys are the best! I bought my car pre-certified with ~40K miles on it from a dealership in 2004, which I assume they drained & filled the transmission as part of the pre-certification process???. Anyway, I only put 25K miles on it since I got it 5 years ago and have never changed the ATF. Based on the replies here, I will go and get ~4 qts Toyota T-IV ATF and do a drain&fill. Cheers,

I'm thinking about changing the ATF on my 2000 RX3000 myself for the first time. I have read this excellent DIY post (http://www.clublexus.com/forums/rx-first-generation/220061-photo-diy-rx300-awd-transmission-fluid-pan-filter-change.html) and think I can handle it. I have several questions before rolling up my sleeves though: * What type of ATF should I get? * My rx300 only has 65K miles on it although it's almost 10 years old. Do I need to replace the transmission fluid pan gasket and filter? If yes, where is the best place to get the parts? Cheers, Jim