g.pain

Hi.

Does a classic running an autronic ecu require a lambda if yes does the connector in the attached picture look like the lambda connector.

g.pain

I recently had a engine built by a reputable company and noticed no wiring going to the lambda, just the sensor in the headers less the wiring. The car runs a autronic sm4 ecu, I would like to know if the autronic does require the lambda, and if so would running in the motor for the first 200 miles have caused any lasting problems.

ianbott

I suppose it depends on whether the ecu runs closed loop, if it runs open loop then I'm pretty sure it doesn't need it.