newkie

New coil installed... No difference what so ever... Wires are fairly new and correctly mounded... Voltage to the coil is 13 somewhat volts...

Injectors are failry new, harness to injectors is new.

If i pull the cable to injector #3 the missfires seem to stop and the engine seem to run smoother some how..

newkie

Im hoping someone is a kick *** porsche electric guru...

Alarmsystems

Porsche original
Cargard 850s

So it seems my alarmsystem while the immobilizer is active, sporadically grounds the ignition coil causing arcing in the distributor wich seem to make the injectors fire radomly...

If i disconnect the coil from the distributor the immobilizer dont seem to mess with the injectors at all...

What the hell could this mean? The alarmsystem was there when i bought the car...

newkie

Im sensing this could be a potential problem.

First of all. What is ist? 2nd could the loose green cable end up at the coil?

newkie

The connector in the previous post has been soldered. I bought another speed and reference sensor last weekend ($55 brand new!) and i thought that i would replace the old one today. The sensor in question is the rear sensor.

Turns out the old one is in pretty bad shape.

The shielding is almost completly cut at both the sensor and the connector end, and damaged in the middle of the cable.

The tip of the sensor has been damaged somehow?!

the sensor was also mounted with a spacer, is this right?

newkie

Well.. That solved... nothing...