checkmate1996

When I start the motor by turning the key to the far right position, some of my electronics such as windows, headlights sunroof, etc don't work until I slightly turn the key left after motor is running. Once I do that all is fine. Is the fix for this just simply a new ignition switch or is something more sinister going on?

jpitman2

sounds like the switch to me - not returning to the run position properly. I have heard there are some cheap dodgy copies out there. The proper ones have a 911 part no IIRC.
jp 83 Euro S AT 57k

The Forgotten On

Just get a new switch from one of out usual suppliers and you won't have to worry about it ever again.

Other symptoms of failure are the bulb check function staying active after starting the car, jiggling the key to start the car, electronics cutting in and out etc.

For ~$100 it pays in dividends to have one less possible source of electrical failure on our aging fleet.

j.kenzie@sbcglobal.net

Yep, sounds like electrical part of switch. Not expensive, but you need to pull the pod to replace it. Not difficult, but a PITA. Get a genuine part so you only need to do this once.
Good luck,
Dave

Mrmerlin

before you get a new switch,
make sure to check that both of the screws that attach the electrical part to the ignition lock cylinder are tight.

dr bob

The ignition switch has 2 contacts on it marked "X". On your '82, one of those goes directly to the light switch, the other routes to the "X" bus in the CE panel that feeds some other high-current users. Current flows through the X contacts when the key is in the engine run position (2), off when in engine start position (3). This configuration drops the high-current loads when the engine is not running, and when the starter is engaged, so that maximum current is available for the starter and ignition. The two contacts on the switch are paralleled internally to the switch, so the symptom you see of lights and other stuff not working until you jiggle the key says that the action at the switch itself is the likely cause.

The locks tend to get sticky from dirt and other contamination if they aren't kept clean. To service the switch the electrical connector will be removed from the electrical portion of the switch. Two screws hold the electrical portion of the switch to the lock. Remove those and remove the switch. While it's out, cycle the key and lock through it's full travel, making sure that it isn't sticky or hanging up in any position. The "return spring" that pushes the switch back to "run" from "start" is in the electrical portion of the switch, so the key in the lock cylinder should rotate quite freely with the switch removed. If the lock isn't smooth, start with a little solvent flush and see if that helps. No Brake Cleaner, as the low-boiling fractions will dissolve plastic. Others will share their expertise on what they like for lubrication.

ScottMRandolph

I am having the problem with the key not bouncing back from Start position. Another problem is when turning the ignition switch off, remove the key, the engine continues to run. New switch is on the way. Anyone know the part # (if one is available), for the brown plastic part that connects to the ignition switch, toward firewall not steering wheel?

dr bob

Scott--

With the electrical part of the switch removed from the back of the lock and unplugged from the harness, (two screws and angle screwdriver...), use a screwdriver to actuate the electrical portion of the switch. Clean as I shared above if the switch hangs up at all. Once the electrical part is working freely, verify that the lock cylinder is also moving freely with the key in it. Lift the ground strap at the battery while you do this of course.

If you do need to replace, shop carefully. There are imitation switches that show up from bottom-feeding vendors, and the quality isn't the same as a real Porsche switch. Our favorite parts vendors have sourced the real deal switches. In my opinion it's worth the extra cost to get one that isn't going to strand you or worse.

ScottMRandolph

Thank you Dr Bob, I have a new ignition starter switch (964-613-012-00) on order from 928 International. Hope to pull, clean/inspect current switch tomorrow evening. I am not having any luck in finding a part # for the brown plastic casing and wiring that plug into the ignition starter switch, appears the top of the casing is cracked. when I have the switch out will photograph the mystery (to me) part. I did see the part in another thread on here, someone had hardwired it onto a board "for racing use only" - found it: https://rennlist.com/forums/928-foru...s-to-what.html