When to replace o2 sensors

Z_ealot · 10-17-2016, 08:04 PM

Ok so in addendum to this thread i swapped out the bank 1 o2 sensor which is the one i was getting a code thrown for. The Z reacts a little more quickly to throttle inputs now, but i am still getting the hesitation i described before, do all o2 sensor both upstream and downstream need to be replaced in order to resolve this issue? Also in addition to the hesitation I noticed that the coolant temps are getting pretty high, like around 215 or more...could this be caused by the o2 sensors as well?

barncobob · 10-17-2016, 08:16 PM

don't PIN it, problem solved..

Ghostvette · 10-18-2016, 08:25 AM

Quote:

Originally Posted by Z_ealot

Guess it's a good thing i found our o2 sensors for less then $100 on amazon lol....one last question though, would the throttle response get worse as the o2 sensors heated up even more, like say as oil temps moved beyond 200 degrees or an extra load was put on the engine like ac being turned on?

Sent from my iPhone using Tapatalk

Only way to know that is to have someone reading the scanner as you drive, or have a way to data log the information.

10-17-2016, 08:16 PM	#32 (permalink)
barncobob A True Z Fanatic Join Date: Sep 2015 Location: hangtown, CA Posts: 1,164 Drives: 16 370Z auto Rep Power: 589	don't PIN it, problem solved.. Z_ealot likes this.

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10-17-2016, 08:04 PM	#31 (permalink)
Z_ealot A True Z Fanatic Join Date: Sep 2010 Location: Albuquerque, NM Posts: 2,044 Drives: 09 370Z Touring/Sprt Rep Power: 10090	Ok so in addendum to this thread i swapped out the bank 1 o2 sensor which is the one i was getting a code thrown for. The Z reacts a little more quickly to throttle inputs now, but i am still getting the hesitation i described before, do all o2 sensor both upstream and downstream need to be replaced in order to resolve this issue? Also in addition to the hesitation I noticed that the coolant temps are getting pretty high, like around 215 or more...could this be caused by the o2 sensors as well?