ELD question AFR accuracy

[yangeghatch]

I've cut the ELD @ D10 to tap in my 0-5v to ECU.

1. If I left ELD disconnected, will it affect anything on stock ecu?
2. Why is that my s300 reading 14 AFR while my wideband reading 16 AFR? Do I need to remove the resistors in the s300?
3. If reading from Smanager and AFR gauge is different, would you trust AFR gauge or Smanager?

Thanks.

[Johnny_9]

I've cut the ELD @ D10 to tap in my 0-5v to ECU.

1. If I left ELD disconnected, will it affect anything on stock ecu?
2. Why is that my s300 reading 14 AFR while my wideband reading 16 AFR? Do I need to remove the resistors in the s300?
3. If reading from Smanager and AFR gauge is different, would you trust AFR gauge or Smanager?

Thanks.

1 Yes - ELD is aninput to ALTC and IACV (i think thru the ECU)
2 R2/R3 need sto be cut - check your ground offsets (see your wireman)
3 - check 2 first; depends how your AFR is wired

[yangeghatch]

I got the PLX SM AFR/ DM6 gauge. Gauge is working but I'm not sure wich is telling me the approximate AFR. I guess I'll need to check with someone else who has a wideaband. Thanks.