How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Matt Your Own Question
Matt, Engineer
Category: Australia Car
Satisfied Customers: 21724
Experience:  Automotive Engineer for 20 years, BEng hons degree,
Type Your Australia Car Question Here...
Matt is online now
A new question is answered every 9 seconds

A random misfire and a low 02 sensor heater bank 1, po131 a

Customer Question

a random misfire and a low 02 sensor heater bank 1
JA: Which particular sensor are you asking about? And have any trouble codes been triggered?
Customer: po131 a random misfire.
JA: What is the model of your '02 Kia?
Customer: 06 a 3.8 vq
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: yes, I did replace spark plugs, throttle body, maf sensor, ignition coils and also the oxygen sensor front and rear
JA: Anything else you want the mechanic to know before I connect you?
Customer: nothing more
Submitted: 10 months ago.
Category: Australia Car
Expert:  Matt replied 10 months ago.


as you've had the o2 sensor heater fault but have already replaced the o2 sensors then Id' next check the state of the wiring loom to the sensors for damage and corroded connections

the error is for bank 1 which is the RH bank

on which side were the o2 sensors replaced?

Expert:  Matt replied 9 months ago.


do you still need help?

Bear in mind that the site takes a deposit from you at the beginning and this is held by the site until you rate my answer at which point the cash is split between the site and the expert. I am only paid for my work on this question if you rate my answer, using the star system at the top of the screen. Please do not forget! Thank you