Evening all, I've has a fault code come up a couple of time for a short circuit on the AFR. It appears that subaru have used a wideband lambda for the front O2 sensor on the newage cars and the sort of prices I am getting quoted is around the £350 mark, just for the sensor. Clearly this is barking as Bosch wideband sensors are around the £100 mark.

Does anyone know whether this can be mapped out and the air-fuel ratio controlled via (the cheaper) rear lambda sensor in conjunction with the MAF, or alternatively does anyone know of a compatible universal sensor that I can splice the wiring in.

 

The front 02 sensor is a pseudo wideband jobby and the newage ECU only likes the signals it produces and not any old replacement.

The rear lambda sensor just checks the efficiency of the CAT and throws CEL P0420 if it thinks the cat is below efficiency so cannot be substituted.

I'd try a breakers or somewhere like API for a second hand unit

HTH

Shaun

 

Cheers Shaun, I've had the P1131 code a couple of times and it seems to throw it after any sort of spirited drive so time to replace. I've found someone who has them listed at £210 butI want to check mine as the subaru wiring diagram and the wires on the replacements don't seem to correlate although the pictures showing the fitment and plugs do.

 

look for innovate WB kit, it cost around $199.it includes bosch sensor and controller.

 

The Subaru sensor is a narrowband sensor that interpolates the signal into a wideband ......... I didn't think the Newage Denso ECU accepted the Bosche signal unless there was some remapping / scaling.

Any tech heads out there tonight ??

Shaun

 

http://www.innovatemotorsports.com/s...C-1_Manual.pdf

check this. ECU takes electric signals anyway, it doesent matter what kind sensor you can add you own settings with this.

 

The Innovate LC-1 wideband controller allows you to configure a secondary narrowband signal to pass back to the ECU. People seem to have mixed success with getting this to work well (the calibration can drift).