Wideband fault?

[A L 3 X]

Right when I first fitted my innovate lc-1 on idle and cruising it used to read pretty steady around 14.7, however since Sunday when I went to deans for a custom centre section it's been acting weird, we disconnected the sensor during doing the fabrication but its installed in the section before the new piece I had made.

I recalibrated it all yesterday but now in idle it will read 14.7 but fluctuate around 14.0 14.1 14.2 14.3 constantly and the same on cruising instead of one value it fluctuates between those 3.

Is this a fault with the sensor or just because of less back pressure in the exhaust?

[AdamB]

If your still running the stock narrowband O2 sensor, it will fluctuate as a narrowband is only able to respond to the question " is it lean?" if the answer is yes, more fuel is added, if not it won't add any fuel.

As long as WOT AFR is ok I wouldn't worry too much. You have done the correct thing by calibrating the sensor.

Edited December 11, 2012 by AdamB

[A L 3 X]

I'm running the narrowband to the car, wideband to the gauge mate...its just strange how its changed since doing the exhaust

[Addymk2]

What ECU you running? Out of curiousity could your ECU be adapting to the increase in exhaust flow?

May be worthwhile resetting the ECU.

Edited December 11, 2012 by Addymk2

[A L 3 X]

A JAM one mate, could be an idea yeah I thought they adjusted themselves once on?

[AdamB]

They don't adjust themselves they are just the same as a stock ecu with a more aggressive map. Remove the battery terminals and EFI fuse for 25 mins or so, then plug it back up to reset the ecu.