Question about 2000 Lexus ES 300
What can cause these problems
Whats going on here is that you have a too rich fuel air mixture. This will cause your misfiring and set off the PO172 Code. Your Bank 1 O2 Sensor is picking up the too rich mixture. This O2 sensor is location on the #1 Cylinder side (so you problem could be in #1/#3/#5 Cylinder). A dirty MAF Sensor, loose plug wire, dirty/broken spark plug, dirty fuel injectors, vacuum leak, and PCV Valve could all be a cause. I would run some injector cleaner through and also clean the MAF Sensor, change your PCV Valve. This would be an easy and cheap start for you. Good luck and thanks for using FixYa!
Posted on Dec 28, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Aug 17, 2016 | Cars & Trucks
Feb 13, 2014 | Volvo S70 Cars & Trucks
Feb 14, 2013 | 1996 Ford Crown Victoria
Bad miss at idle?
While stop engine idles like cylinder missing?
Engine Misfire codes for car?
Engine Misfire codes?
Misfire on cylinder 4?
Oil on spark plugs and car misfires?
This will help.
Jan 22, 2012 | 1996 Buick Riviera
Jun 24, 2011 | 1996 GMC Yukon
Jun 29, 2017 | 1996 Ford Thunderbird LX
Jan 29, 2011 | 2001 Chevrolet Cavalier
Oct 08, 2009 | 1996 Plymouth Voyager
740 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: