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Usually related to the Variocam actuator, Variocam actuator solenoid, or the related wiring. What year is the car and how many miles? |
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Things like: What RPM is the actuator supposed to kick in and out at. How is the Solenoid is wired? How many wires to the Solenoid? What voltages are spec? Things like that. Then I would get some diagnostic equipment like a Durametric or Foxwell scanner so I could look at live data. Then I could look at things like: Is the system functioning at all? Is the solenoid getting voltage? Are the cams moving at all? Do I have an open or short in the solenoid wiring harness? So what you want to start with is a detailed and complete as possible diagnosis of the problem before you start changing out expensive parts. Isolate and Identify the problem before you fix it. It could be something as simple as a bad wiring connection. Or something more complex. |
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You can test the wiring to the solenoid with a simple Digital Volt Meter but you need to know what wire is what and the voltage specs. As you try to fix the issue work from simplest thing first to the more complex step by step. So I would start with the wiring and work my way up. Lots of discussion on this issue here on the forum. So using the search function should help you out if you haven't done that already. Keep us posted on your progress;) We learn a lot about these cars from others experiences. |
as for the scanner, is there a specific foxwell scanner that has the functions of seeing the engine data that I need for this project or is that a durametric only thing. Also is there any fsm paperwork on this issue?
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There's your Durmetric. ;) :cheers::cheers: |
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You can get it loaded with any manufactures programing. Ford,Porsche, what ever. You can also down load additional programing for an added fee. So if you own say a Honda and a Porsche like I do, you can use the scanner on both. It gives you OBDII code reading and manufacture specific codes of which ever manufactures programs you have loaded. It gives you live data, graphing, component actuation such as fuel injectors, heater fan, cooling fans, What ever the manufactures programing allows in the way of component access. So with the Porsche program I can test or actuate anything on my 2000S Boxster that my Durametric can actuate or test. The advantage of the Durametric (for myself). is the big laptop screen. It allows me to graph several signals at once and compare them. On the Foxwell I can only graph two signals at once and the screen is small. The bigger issue with any scanner or test equipment is knowing what your looking at and how to use it in a diagnostic process.;) Which for me is always an ongoing process. FSM paperwork?? just so we are on the same page do you mean Factory Service +Maintenance paperwork???? Or??? |
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I think there are a series of documents (in three ring binder form). That covers everything about the cars. But I believe they are out of print, hard to find, and expensive. There are people here on the forum that are very knowledgeable about these cars. So I think you could get help or clarification from fellow forum members with most issues. |
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https://www.theknowledgegruppe.com/ |
Most of the factory produced documentation that was around for the early 986 cars was never updated with any of the many updates Porsche put out. So while good, there are errors.
And for later cars, there was no printed repair and diagnosis manuals, just the online info for which you had to be a dealer or have really seriously deep pockets to purchase. About 2-3 years ago on the forum someone really went into the systems you are looking at and posted theory and testing approaches but on which forum and who it was ... I'm too old to remember. Search is you friend. |
https://www.pelicanparts.com/techarticles/Boxster_Tech/16-ENGINE-Camshaft_Swap_and_Chain_Tensioner/16-ENGINE-Camshaft_Swap_and_Chain_Tensioner.htm
This seems to be a decent source, Although it really only mentions replacing the solenoid. Hopefully thats all thats wrong with the car considering I cant even find a replacement actuator. |
i just bought an autell maxidiag 806, ive heard it can do alot so hopefully it works well on the car. do any of you know about it?
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Looks like it reads live data and can do component tests. and other functions. I didn't see any mention of graphing capability but maybe it has it and wasn't mentioned. Looks like it will be a useful tool for you. |
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I don't know if the wiring to the solenoid is just a 12 volt hot and a ground or??? So you will need a wiring diagram. Second: If your scanner has component test capability you could actuate the Variocam system one bank at a time. With key on engine off and listen for the solenoid to actuate=click. Doing this with key on engine off you should be able to hear the solenoid work because it is electric component. but the actuator will not activate because it needs oil pressure to work. |
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