Head Sensor & Temperature Switch, Where & Why? |
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Head Sensor & Temperature Switch, Where & Why? |
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. |
Cap'n Krusty |
Apr 15 2010, 12:42 PM
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#2
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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 |
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 |
ericread |
Apr 15 2010, 12:51 PM
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#3
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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. 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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