Thread: 95 Gems now with O2 sensors

Hi

As far as I know you don't need to do anything, but you can do a reset so the adaptive fuel trims are derived from a default setting

Regards
Steve

you cannot change the o2 sensor configuration in the ecu. check the code number on the ecu to find out what type you have, but a no o2 ecu will not take any notice of the sensors. don't reset the adaptions on a no o2 ecu unless you can perform an open loop tune, as it will run rich until you manually lean it out.

I looked into this myself for my 95 a while back and come to the conclusion that the only way O2 sensors would give benefit was to fit a Mark Adams 'Tornado' chip as well. The chip supposedly will recognise the sensors.




I never got around to doing it, too many other things to spend $ on first.

Yes:
You need to fit a Tornado chip to enabled the O2 Sensors to work... I have done it to one of my P38s which was on LPG...

Fantom:
If you are keen I have a Mark Adams Tornado chip which I haven't fitted/used as yet... I can give you a decent discount on a New one if you like... Just Reply or give me a PM....

Hmmm, if Fantom isn't, I could be......

Martin,

Assume you had to get bosses welded in to the exhaust? And what did you plug the O2 sensors into?

PM Sent

Hi Sean, I had bungs welded to exhaust system for o2 sensors. the wiring is already provided as standard just need to have computers pick up the addition of sensors but seems bit more involved that i first thought.
will let you know outcome.
Still working on P38 BBQ at my place sometime soon hopefully just got find the right weekend when no work on!

Originally Posted by Rupert Prior

you cannot change the o2 sensor configuration in the ecu. check the code number on the ecu to find out what type you have, but a no o2 ecu will not take any notice of the sensors. don't reset the adaptions on a no o2 ecu unless you can perform an open loop tune, as it will run rich until you manually lean it out.

Are you sure Rupert? I am sure someone on here has added and livened sensors in a Gems. Didn't other countries have them? Surely there is a relatively cheap and easy way to make it all work?