 Head Sensor & Temperature Switch, Where & Why? |
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| ericread |
 Apr 15 2010, 11:57 AM
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#1
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The Viper Blue 914  Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California  |
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-(IMG:style_emoticons/default/cool.gif). So what is the purpose of this temperature switch? My thanks. |
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Replies(1 - 6)
| ericread |
Apr 15 2010, 12:03 PM
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#2
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The Viper Blue 914 Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California |
Never mind. I got the answer from George over at the club site.
My thanks. Eric |
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| dr914@autoatlanta.com |
Apr 15 2010, 12:04 PM
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#3
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914 Guru Group: Members Posts: 7,896 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
QUOTE(ericread @ Apr 15 2010, 11:03 AM)  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!!! |
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| Cap'n Krusty |
Apr 15 2010, 12:42 PM
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#4
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
QUOTE(ericread @ Apr 15 2010, 10:57 AM) 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-(IMG:style_emoticons/default/cool.gif). So what is the purpose of this temperature switch? My thanks. And what would those symptoms be? The Cap'n |
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| TheCabinetmaker |
Apr 15 2010, 12:45 PM
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#5
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I drive my car everyday Group: Members Posts: 8,304 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Ah, the cross posting begins (again).
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| ericread |
Apr 15 2010, 12:51 PM
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#6
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The Viper Blue 914 Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California |
QUOTE(Cap'n Krusty @ Apr 15 2010, 11:42 AM) QUOTE(ericread @ Apr 15 2010, 10:57 AM) 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-(IMG:style_emoticons/default/cool.gif). So what is the purpose of this temperature switch? My thanks. And what would those symptoms be? The Cap'n 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 |
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| Tom_T |
Apr 15 2010, 06:07 PM
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#7
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TMI.... Group: Members Posts: 8,318 Joined: 19-March 09 From: Orange, CA Member No.: 10,181 Region Association: Southern California 
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QUOTE(ericread @ Apr 15 2010, 11:03 AM) Never mind. I got the answer from George over at the club site. My thanks. 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! (IMG:style_emoticons/default/biggrin.gif) |
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