Question about Mazda MX-3
It can be hard to say which it is, because either one will trip the the code, but in this case I'd place my bet on it being the O2 sensor because it says "warm up" - the O2 sensor has to be up to temperature (around 900 degrees) to function. The computer watches for the O2 sensor to heat up in a certain amount of time, and if it doesn't get to temperature soon enough, the computer diagnoses a faulty heater for the O2 sensor and trips the code.
For the record, this would be the secondary O2 sensor, the one after the cat. That's the one that is used to determine cat functionality and efficiency. The primary sensor, before the cat, is used to fine-tune the fuel delivery.
Posted on Aug 08, 2008
a 6ya Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Oct 14, 2014 | 2004 Pontiac Grand Am
Mar 04, 2014 | 1998 Toyota Corolla
Dec 21, 2013 | Cars & Trucks
Oct 06, 2010 | Mazda 626 Cars & Trucks
Jul 27, 2010 | 1999 Mazda 626
May 30, 2010 | 2004 Dodge Stratus
Feb 07, 2010 | 2004 Honda Accord
Dec 06, 2009 | 2001 Mazda Millenia
Jul 15, 2009 | 2000 Mazda 626
765 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: