S50 O2 sensor

[MatRacer]

THis is the S50 exhaust Mechanical assembly drawing. The item 29 is not listed in the material list. Is it a second Lamda or just a wire?

How much Lamda there is suppose to be?

One more: If I use OBD-2 echaust manifold or Raceland headers, THe O2 would by pretty far from the engine... Does it affect the reading?

[FredK]

There is only one oxygen sensor for OBD-I engines.

The distance should not be excessive when using the OBD-II headers or the Raceland headers. You should be fine.

[MatRacer]

Thanks for fast answer!