Main Menu

O2 sensor & head temp sensor


Vehicle Information: Model: 911 Carrera; Year: 1984; Body Type: Coupe; Engine (type, size, modifications): 3.2; Total Mileage: 43,000;

For what it's worth: old style one wire head temp sensor has a 13mm hex - new style two wire sensor has a 14mm hex. I found this out the hard way. You need both sizes of slotted sockets. Also, you can use a 22mm open end wrench to change the O2 sensor, also found out after buying expensive slotted socket. Car runs great now, thanks for the heads-up on these sensor failures.

You must log in to view answers associated with technical questions. Join PCA to participate in our community.
No votes yet