My 74 2.0L car is exhibiting all the symptoms of a faulty head sensor. I have one in stock, I just don't know where it goes. So exactly where is this located? I just can't seem to find the exact location.

Additionally, a wire broke that went to the Head Temp Switch, which is identified on the Porsche PET as part # 311-906-161-C. This sits just aft of the distributor and is attached via a support (pn# 039-113-285-. So what is the purpose of this temperature switch?

My thanks.

Never mind. I got the answer from George over at the club site.

My thanks.

Eric

And I was just about to post it here! The club e mail came before the world e mail and I was taking them in order! NO prejudice here!!!

And what would those symptoms be?

The Cap'n

Ah, the cross posting begins (again).

The symptoms are pretty significant engine bucking after driving about five miles. BTW: This just started earlier this week, after I drove without any difficulty form SoCal to Las Vegas). What confuses me is that if I ground the CSV sensor (that sits just aft of the distributor, the bucking is still there, but much reduced.

So any chance I have a Cold Start Valve circuit issue along with a CHT that is in need of replacement?

Eric

Well Eric, post the link to the answer on the 914club site here, so the rest of us can find it for future reference!
Thanx!