23.10.2020, 17:02
Hi. I installed 3 gauges. The temp gauge works fine. The rpm counter I think it shows too low values.vanyone know what's the max rpm on idle before the Rev limiter kicks in?
The air fuel mixture shows too rich while actually the car is too lean. I checked the connector to the o2 sensor with engine off and the o2 sensor is disconnected. Seems like I have no ground on either of the 2 pins, is that normal? Also looks like the ecu puts voltage of about 1v into the o2 sensor I thought the ecu should only read the values of the sensor why would it have any voltage?
![[Bild: twingo-23180612-vIS.jpg]](https://pics.twingotuningforum.de/pics/2020/10/twingo-23180612-vIS.jpg)
The air fuel mixture shows too rich while actually the car is too lean. I checked the connector to the o2 sensor with engine off and the o2 sensor is disconnected. Seems like I have no ground on either of the 2 pins, is that normal? Also looks like the ecu puts voltage of about 1v into the o2 sensor I thought the ecu should only read the values of the sensor why would it have any voltage?