SPONSORED LINKS

Need to fix is prob asap

Tiny
DOMINICAN038
  • MEMBER
  • 1999 ACURA CL
  • 6 CYL
  • FWD
  • MANUAL
  • 190,000 MILES
My acura cl 1999 has been cutting of when driving so ckecked the codes and it gave me these code 02 sensor heater. Circuit malfunction.(Bank 1 sensor 2) what dose this mean and what can I do to fix it
Friday, April 15th, 2011 AT 11:53 PM

8 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The oxygen sensor behind rear of catalytic converter
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, April 16th, 2011 AT 12:03 AM
Tiny
DOMINICAN038
  • MEMBER
  • 2 POSTS
Thank
Was this
answer
helpful?
Yes
No
Saturday, April 16th, 2011 AT 12:07 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
That sensor is not causing your performance issues. What are the exact numbers being stored.
Was this
answer
helpful?
Yes
No
Saturday, April 16th, 2011 AT 12:09 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The 02 sensor can cause performances issues. It can cause intermittent non or poor response from throttle openings.
Was this
answer
helpful?
Yes
No
Sunday, April 17th, 2011 AT 8:51 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
I disagree. The downstream sensor is an Converter monitor only and has no effect on engine performance.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, April 17th, 2011 AT 11:54 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
I have personal experience in this problem. Spent a week trying to find the problem, thinking it is not the cause. After replacement of the sensor, the problem was fixed. Had 3 similar case from friends of mine.
Was this
answer
helpful?
Yes
No
Sunday, April 17th, 2011 AT 12:41 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
The downstream sensors are not engineered to play any part in fuel mixture decisions. That's not saying that a defect in one couldn't somehow effect the upstream 0/2 circuits through some kind of short circuit but they do not intentionally play any part in engine performance.
Was this
answer
helpful?
Yes
No
Sunday, April 17th, 2011 AT 1:34 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
It is not the fuel mixture decision that is causing the problem. Seems the fault is confusing the PCM.

Sometimes we never know what and how the PCM reads the situation.

Logic sometimes have to be thrown out of the window.
Was this
answer
helpful?
Yes
No
Sunday, April 17th, 2011 AT 2:53 PM

Please login or register to post a reply.

Related Oxygen Sensor Content

Oxygen Sensor
GUIDE
Oxygen Sensor
Oxygen sensors are made of reactive materials which limits their lifespan. Aside from mechanical failures such as shorted heating elements or physical damage, these sensors...
VIEW MORE

Sponsored links