 D-jetronic pressure sensor |
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| 914Pro |
 Mar 9 2013, 12:18 PM
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Newbie  Group: Members Posts: 5 Joined: 18-December 12 From: Kansas Member No.: 15,266 Region Association: None  |
I am having trouble with my 72 914, and it is causing it to run way to rich. I think I have pinpointed the problem down to the d-jetronic pressure sensor that is telling the computer to send too much gas to my car. Any help from someone who has had the same problem or anybody who knows anything about this or where I can get a pressure sensor please help. This car is my first and I would do just about anything to keep it going!
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| Spoke |
Mar 9 2013, 12:24 PM
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Jerry Group: Members Posts: 6,978 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None 
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First off, (IMG:style_emoticons/default/welcome.png)
The MPS works with the cylinder head temperature sender to calculate how long to open the injectors. If the CHT is bad or disconnected, the engine will run very rich all the time. Check the CHT sender for resistance (I think 1000 ohms at room temp) and make sure it's connected ok. It's above cylinder #3 intake tube. Likewise, if the MPS is leaking air, it will always call for more fuel. Test it with a brake vacuum bleeder pump if you have one. I bought one at Harbor Freight and have gotten a lot of use out of it. |
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| Socalandy |
Mar 9 2013, 08:48 PM
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Its got to be Yellow!!! Group: Members Posts: 2,432 Joined: 29-August 09 From: Orange Member No.: 10,742 Region Association: Southern California  |
saw your reply in my thread and saw yours, I have one off a running 72 1.7 but its been in a ziploc baggie for a few years. If your trouble shooting with the group leads to it as the most likely cause PM me (IMG:style_emoticons/default/smile.gif)
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