brian in buddina Posted 12October, 2019 Report Share Posted 12October, 2019 Just completed a clutch job, but apparently I'm not finished yet. Cranking over, but no start. I have a fully charged battery & indicated tach bounce. I pulled a spark plug and no spark. Pulled a lead off the coil & no spark. On Clarks Garage they mentioned that if you have tach bounce its not likely to be the speed & reference sensors. I'm not so sure. Everything was working before the clutch let go. The DME has been re soldered before the clutch work & worked then. With all the wiring in the way of accessing things I am wondering if I pulled a plug or damaged a wire. What tests should I be doing to isolate my problem? Link to comment Share on other sites More sharing options...
TINGY Posted 12October, 2019 Report Share Posted 12October, 2019 Checked sensors, you haven't bumped them or broken them? No spark at coil? Could be this then.... Link to comment Share on other sites More sharing options...
Dreamr Posted 12October, 2019 Report Share Posted 12October, 2019 Cant advise any tests, but possibly accidently earthed a wire somewhere under there ... Get it back on the hoist and start looking ... 😥 Link to comment Share on other sites More sharing options...
bear924 Posted 12October, 2019 Report Share Posted 12October, 2019 Brian, Suspect you'll find it will be something simple. Check you've reattached all earth straps, leads and plugs. Your big challenge while trying to fix this is to not introduce another fault by changing things from working to not working. Link to comment Share on other sites More sharing options...
brian in buddina Posted 13October, 2019 Author Report Share Posted 13October, 2019 I am going to replace my one of my sensors item 10, not sure which one it is, due to the end connection at the junction has deteriorated. The bracket shown below, item17, holds both speed & reference sensors. My bracket does not look the same, as it only holds 1 sensor. So if I order 2 sensors leads, where does my second sensor wire go to? It disappears into the bowels of the engine... Link to comment Share on other sites More sharing options...
Rob Posted 14October, 2019 Report Share Posted 14October, 2019 Brian Yes, your engine has a cam position sensor up behind the camshaft pulley. The connection to that is very prone to disintegration as it's quite close to the exhaust. It's also called the Hall Sensor... Link to comment Share on other sites More sharing options...
944s2cab Posted 14October, 2019 Report Share Posted 14October, 2019 If it is your cam sensor, you can use the sensor from a Golf part no. 06A 905 161B, You'll need to drill out the rivets and mount it to the Porsche bracket, Can't remember what I did for the plug, I can search through my pohotos if you want Link to comment Share on other sites More sharing options...
brian in buddina Posted 15October, 2019 Author Report Share Posted 15October, 2019 @944s2cab thanks but recieved mine from Bursons. I had a Bosch part number. Out to the garage momentarily to see if we have a crank & START! Link to comment Share on other sites More sharing options...
OzJustin Posted 15October, 2019 Report Share Posted 15October, 2019 On 14/10/2019 at 13:51, Rob said: Brian Yes, your engine has a cam position sensor up behind the camshaft pulley. The connection to that is very prone to disintegration as it's quite close to the exhaust. It's also called the Hall Sensor... I can attest to this. As Rob may recall mine disintegrated during some work. I’ve moved my plug/wiring as far forward away from the exhaust manifold as possible. Perhaps some heat sleeving would be beneficial. Link to comment Share on other sites More sharing options...
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