View Full Version : No cat tunes and secondary sensors
mwood1986
Mon, May 16th, 2011, 02:10 AM
Well I had my cats tuned out cause one of em blew up on me when I had a miss fire issue from the aftermarket coils I had on.
I was wondering am I able to completely remove the second sensors now without an issue?
I'm only asking cause before I had it tuned out I tried the gotts o2 mod and the o2 extenders which basically fried the one o2 sensor cause it didn't ground properly, I'm thinkin. So now I get these codes for the inductance and heating element in the sensor which make my truck run cold. (until I clear them of course :cheesy smile: )
jmt0645
Wed, May 18th, 2011, 06:24 PM
Well I had my cats tuned out cause one of em blew up on me when I had a miss fire issue from the aftermarket coils I had on.
I was wondering am I able to completely remove the second sensors now without an issue?
I'm only asking cause before I had it tuned out I tried the gotts o2 mod and the o2 extenders which basically fried the one o2 sensor cause it didn't ground properly, I'm thinkin. So now I get these codes for the inductance and heating element in the sensor which make my truck run cold. (until I clear them of course :cheesy smile: )
ran into this myself with my offroad y-pipe, even with the rear sensors "tuned out" they still must be plugged into the harness so the PCM atleast can "see" they are preset even though it doesn't use them :thumbs up yellow:
cleatus12r
Thu, May 19th, 2011, 07:19 AM
What he said.
mwood1986
Sun, June 5th, 2011, 10:41 PM
Yea sorry for being so slow to respond, I'm horrible at remembering to follow up on things.
I found this out the day after when I tried disconnecting it, so I ordered a new Motorcraft sensor from rock auto for like $36.
Thanks for the responses though!
DarrenWS6
Wed, July 6th, 2011, 10:51 PM
Rear O2 sensors are not turned off on catalyst emission monitoring from custom tunes are they? Is that more of a special request while ordering tune thing? Or is it possible to de-activate them from reading with the Gryphon?
88Racing
Thu, July 7th, 2011, 09:20 AM
Rear O2 sensors are not turned off on catalyst emission monitoring from custom tunes are they? Is that more of a special request while ordering tune thing? Or is it possible to de-activate them from reading with the Gryphon?
Upon special request Bill can turn them off when the tunes are written......
Otherwise a person can go with sct and turn them off with the hand held programmer...