TheCJ

I'm planning to replace a bunch of sensors for peace of mind. The AFM and some of the sensors are just cooking like no other with the exhaust heat so when the car gets hot it starts to rough idle and now it's losing power intermittently during cruising at 65mph. Shook the connector to the AFM and the engine died. Going to replace it but there are a couple sensors below it (not the 02) and I'd like to ID them for replacement. Can someone please help to ID them? They are the two in the lower center of the picture. thanks!

Steamboat

I believe those are both camshaft position sensors. The top one is the G40 sensor and the bottom one is the G300 sensor.

TheCJ

Great, thank you! They are probably hating life being right above the exhaust manifold. I'm sure they are getting over 200deg of radiation regularly. Will be replacing them soon, all of them.

Steamboat

FYI, I've got over 300k miles on my 02 A4 B6 3.0, and I've never had to replace either of those sensors, so yours will probably be able to hang in there for a while longer.