How to replace a Camshaft Position Sensor in a Porsche Boxster
Hey guys need help. How do you change this and where is it located?
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There are two, one per bank, and are located at the non-driven end of each intake camshaft, i.e. at the right front of the engine for the 1-3 bank, and the left rear of the engine for the 4-6 bank. Held in place by a single 5mm allen.
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I've never done it, but my Bentley manual appears to have a pretty good set of instructions. I suggest you get one if you're going to be doing much of anything on the car yourself. Good luck
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986 camshaft position sensor
Hi Guys, does anyone have a picture or diagram for where the camshaft position sensor is located? Thanks!
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What year and motor?
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I need the same for a 99 2.5. Thanks in advance
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i dont know if this helps...but it would appear the camshaft position sensor is number 34 in the picture right in front of the forward intake port.
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This article may have some information:
Porsche Boxster Engine Sensor Replacement - 986 / 987 (1997-08) - Pelican Parts Technical Article |
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Here's a picture from when I was swapping out the sensor behind the driver's seat in a '99. I just had the panel behind the seats removed and reached in with a small wrench. Nothing else had to be removed. http://986forum.com/forums/uploads02...1471320866.jpg http://986forum.com/forums/506745-post25.html The one under the AOS... will probably need the AOS removed. Try out some Googling with variations of "Renntech", "Camshaft position sensor", and maybe your code "P0341" etc... Not only for info on how to remove the sensors, but more insight into what the root problem may be. https://www.google.com/search?q=renntech+cam+position+sensor+AOS&ie=utf-8&oe=utf-8 |
I got a CEL, scanned the OBD, and I get this:
P0349 Camshaft Position Sensor "A" Circuit Intermittent (Bank 2) A few questions: 1) Does Bank 2 mean for cylinders 4 - 6? 2) If so, what's involved in removing and replacing it? Do you need to remove the top engine cover or is it accessed from behind the seats, or some other way? (Seems that it's a totally different procedure depending on whether its the Bank 1 or Bank 2 sensor) 3) Does replacing it solve the problem, or could something else be causing it to act this way? 4) Finally, is there any possible way this could be an early warning of an impending IMSB failure? (I know there aren't any clear warning signs, but I believe there are a couple of tiny ones) As you can see below, I have a 2004 S. Thank you. |
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Do you know what's involved in replacing it? |
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I just didn't want you to go down the wrong rabbit hole with an "intermittent circuit" code by assuming it's the sensor. |
Reviving an older thread.
Has anyone replaced the Bank 1 camshaft position sensor in a 2.5L engine (see this diagram for bank 1 vs. bank 2). I have the Bentley manual and Wayne's book, but I am finding it very hard to reach the bolt that holds the sensor down. (Wayne's book has the engine removed which makes access a cinch and Bentley simply instructs to unclip the connector and undo the bolt). I am thinking about removing the secondary air pump to improve the access from the top but before I do I want to see whether someone has better instructions. |
Think it's the same on all of the engines...and it's a pain. Have to take the AOS out. Removing the pump may not help much. Remember, it is a hex head, not a torx head and can be in there pretty good. Dont strip it or you will be in for a lot of fun
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EDIT: I looked at Wayne's book and it describes the AOS removal. He recommends disconnecting the bottom flex hose from the underside of the car. |
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The AOS must come out. The sensor sits right below it. No way to get it out without removing the AOS.
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