Wideband, stock o2

[Sagaris]

I just got everything through the firewall cleanly last night using the grommet and position for the A/C lines (A/C is no longer in the car) and routed the wiring nicely. Until I figure out the best 12v source, I have it temporarily spliced into a cig. lighter outlet plug, so I have to plug it in and unplug it when I run the car :P but this weekend I will find a more proper place, most likely the positive and negative terminals in the engine bay.

[jaywood]

Anyone else have input on this?

What would be my best bet for a switched 12v?

[jaywood]

Got everything sorted out. LED works

Free air calibrated it and it's reading 22.4. Is that normal?

[der affe]

i don't think you are going to get it work properly to be completely honest.

i fought with my XD-16 to try to get it to work with my SS maf conversion, before i went with MSII.

i had a friend who was an electric engineer helping me and after i gave up and handed ot over to him to make it work, he called Innovate and after a long conversation with them describing how it was wired and how he thought it might work if wired differently, they told him, it just would not work with a motronic system and send the proper narrow band signal to the ecu to make it work correctly.

mine was doing the same thing your's is.

[jaywood]

My issue was the +12v source. Now that I found a better one everything seems to work good.

[Sagaris]

Yes it will read 22.4 AFR after calibrated since that is the upper limit of its reading capability.

So the first time I ran mine as a simulated narrowband on motronic (single 5 mile trip) it worked great and the AFR's were perfect. I hooked it back up a month later as a narrowband and am getting motronic fault codes 1221 and 1222. I talked to one of the Innovate techs and they said that they would be surprised if the simulated narrowband worked well on any stock efi setup since the simulated narrowband voltages may not match up to what a stock efi expects.

The best way to go for motronic would be welding in an extra bung for the wideband for monitoring and using a stock O2 for mixture correction. This would apply to anyone running Miller W.A.R. chip or Ostrich tuners as well since it is still being managed by motronic.

I will be welding in a new bung since my car will no longer run closed loop with the wideband so the AFR's are all over the place, I am getting 13.8 to 16.0 at part throttle which is garbage, but what can you expect on a base map of an untuned engine

[jaywood]

Thanks for that. I'll see how it works for me, and if it's not so good I'll weld in an extra bung for the stock o2.

Started calibrating it. I did the free air calibration and it read 22.4. The sensor is now threaded into the downpipe and it reads ~9.4 with the car still off (sensor wasn't warmed up, if that matters). Does that seem right?

[Sagaris]

I would disregard that 9.4 and just worry about what the AFR's are when running. Do you have headers or a stock manifold? Where are you planning on welding a bung in? The o2 bung in the stock exhaust manifold samples both cylinders through an H-pipe. If you can't get the second bung in a place where it will get both cylinders, it seems to me that installing it on the runner for cyl 4-5-and 6 would be better than 1-2-3 since there will be more pressure drop from the fuel rail on cylinders 4-5-6 and may run a tad leaner so you will be able to monitor the leanest cylinders.

[jaywood]

I've got a turbo manifold, so I would weld a bung in the downpipe. (before or after the wideband?)

[johnswimmer]

Where did you source your switched +12v?

[TrippinBimmer]

Where did you source your switched +12v?

x2

[jaywood]

Little box next to the fuse box ;)

There's a switched 12v in there.