Subaru conversions running 'open loop' ?

panel · Post by **panel** » Mon Jun 13, 2016 7:30 pm

Any of you guys running open loop ?

I think I have a bad O2 sensor ( I only have one in my year/model etc) and I've heard guys just running them in an open loop mode by un plugging the sensor. I can't un-plug cause mine was cut so short so I extended it and just running the wires to a 12v+ switched , negative and to the ECU(3 wire).

I guess I could cut the wire to the ECU ? Does it need to pull to ground after that or ?

It's not that I don't want to buy one it's just I'm doing the research as to which one to buy. NTK , Bosch or supposedly the OEM is a Denso but right now mine is fitted with a Bosch.

(My motor is an EJ20 JDM Turbo V5-V6)

Iguana · Post by **Iguana** » Fri Jul 29, 2016 10:51 pm

I would not run that engine in open loop.

Why do you think it is bad ?

gtmdriver · Post by **gtmdriver** » Sat Jul 30, 2016 12:27 am

If you want run open loop you can do it without disconnecting anything. Just disable 'incorporate afr' in the settings and the MS will ignore the lambda sensor.

panel · Post by **panel** » Sat Jul 30, 2016 9:21 pm

Megasquirt ? I'm not runing MS.

gtmdriver · Post by **gtmdriver** » Sun Jul 31, 2016 1:00 am

Sorry!

panel · Post by **panel** » Sun Jul 31, 2016 2:40 pm

gtmdriver wrote:Sorry!

I might go back to it if I can't figure this JDM wiring and my latest hunting issue

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Subaru conversions running 'open loop' ?

Subaru conversions running 'open loop' ?

Re: Subaru conversions running 'open loop' ?

Re: Subaru conversions running 'open loop' ?

Re: Subaru conversions running 'open loop' ?

Re: Subaru conversions running 'open loop' ?

Re: Subaru conversions running 'open loop' ?