difference between universal and specific lambda sensor?

[heiwaz]

the specific and universal are BOSCH parts.

What is CEL?

[sparker]

CEL = Check Engine Light.

I think the only difference is the car specific plug. I run aftermarket wideband sensors in my boxster and just use the programable output to simulate a narrow band sensor. Hasn't thrown a check engine light yet and I cant see how it will.

Sam

[heiwaz]

Yes, I think the same. One of the 2 lambda sensors that mount my car now, has got a different oem plug, so I think it's probably an universal sensor.

[mikefocke]

There are generic sensors, Bosch universal and Bosch with pigtails consisting of wiring and connector plug. The risk of them not working is inverse to that order and the cost is in that order. Better chances = more cost. But you don't have to use/pay for Porsche branded parts, Bosch makes em for Porsche.

More on O2 sensors including part numbers used in US models (no idea what ROW cars use) at https://sites.google.com/site/mikefocke2/oxygensensors.