Vr v8 with th400

[Dylan]

Ahh wrong thread maybe to many beers. Either way rip into the tuning!

[Wade]

Finally good it up an running. Sounds nice, now time to connect the Wideband and then send it in for a custom tail shaft

[Wade]

Ok guys need some more advice. I'm putting the innovative Wideband in now and I'm stuck with which way to install it. Can I simply remove the factory o2 sensor and install the Wideband into that location, then run both the outputs from the Wideband into the pcm location for both Wideband and narrow band, with out it upsetting the pcm as there's no heater wire connected for the original narrow band? Or will it throw a code?

[immortality]

Personally I'd just weld another O2 bung in the exhaust and leave the factory narrow band in place. Other guys have tried the NB simulation from the WB sensor but have had issues.

[Wade]

Ok cool I'll give that a go. I was just being lazy lol

[VL400]

If the wideband is a temp install for tuning only, then just put it in place of the narrowband. You will have closed loop turned off while tuning anyway, so the narrowband is pretty much useful only to give a sanity check that the wideband is rich/lean from stoich.

If its a permanent install then definitely add a second bung as immortality suggested, narrowband sim is not great.

[Wade]

Nah it'll be staying in there

[Wade]

can you guys have a look at this log. I'm not really happy with the idle its getting better but still feels like its hesitating and stumbling a bit.

[Holden202T]

I can't see any wideband reading in this log ?

but I can see that when you reved it the narrowband sensor went lean ... but that could just be the part after the blip....

but it doesn't look to go very rich at all till about 2500rpm....

[Wade]

I'm half way through fitting the Wideband. So still not connected