Converting a 95 3.6 to a 914, Questions questions |
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Converting a 95 3.6 to a 914, Questions questions |
Jgilliam914 |
Feb 5 2021, 01:04 PM
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#1
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914 Guru Group: Members Posts: 5,327 Joined: 30-July 12 From: Iowa / Florida Member No.: 14,732 Region Association: Upper MidWest |
Converting a 95 3.6 to a 914
I’ve had the engine a few years before the air cooled engines went insane. So I am getting it off the shelf to prepare the install. I have purchased the harness adapter from Patrick Motorsports. I also have their air intake conversion. Also their Pulley system. I removed the speed control unit and A/C mounts. My questions are mainly about the electrical and vacuum systems. When I purchased the Engine from LA Dismantler’s they also sent the DME and the engine harness. When I finally got around to digging them out and matching them up to the engine I see a lot of sensor connections that have no mates. My questions are some of these not needed in this application? Or am I missing something? [attachmentid=779 552] |
Mark Henry |
Feb 5 2021, 01:10 PM
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#2
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Talk to Sir Andy.
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mepstein |
Feb 5 2021, 01:32 PM
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#3
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914-6 GT in waiting Group: Members Posts: 19,245 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
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ClayPerrine |
Feb 5 2021, 01:37 PM
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#4
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Life's been good to me so far..... Group: Admin Posts: 15,416 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
I can tell you from experience...
Picture #1. connections for the engine mounted blower motor. Picture #4. The green plugs go to the knock sensor. the 2 pin plug with the mercedes emblem goes to the resonance flap solenoid, and the big round plug goes to the mass airflow meter. The pictures aren't detailed enough to identify most of the wires. Clay |
Jgilliam914 |
Feb 5 2021, 01:43 PM
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#5
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914 Guru Group: Members Posts: 5,327 Joined: 30-July 12 From: Iowa / Florida Member No.: 14,732 Region Association: Upper MidWest |
I can tell you from experience... Picture #1. connections for the engine mounted blower motor. Picture #4. The green plugs go to the knock sensor. the 2 pin plug with the mercedes emblem goes to the resonance flap solenoid, and the big round plug goes to the mass airflow meter. The pictures aren't detailed enough to identify most of the wires. Clay I can definitely add more!! |
Jgilliam914 |
Feb 5 2021, 01:54 PM
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#6
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914 Guru Group: Members Posts: 5,327 Joined: 30-July 12 From: Iowa / Florida Member No.: 14,732 Region Association: Upper MidWest |
These are the attachments on the harness.
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Jgilliam914 |
Feb 5 2021, 02:02 PM
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#7
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914 Guru Group: Members Posts: 5,327 Joined: 30-July 12 From: Iowa / Florida Member No.: 14,732 Region Association: Upper MidWest |
On the engine
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Mark Henry |
Feb 5 2021, 02:14 PM
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#8
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Big round one is (I think) the computer diagnostic plug in, sort of an early OBD connection.
I can read this with my Durametric, but it really doesn't tell you a whole lot, not like the later cars. |
SirAndy |
Feb 5 2021, 02:25 PM
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#9
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Resident German Group: Admin Posts: 41,607 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
I'm pretty sure these go to the intake gadgets at the throttle body. I can snap some pics tonight.
I do remember that i also had a lot of unused connectors since i dropped a lot of the aux stuff like cruise control etc. (IMG:style_emoticons/default/idea.gif) (IMG:http://www.914world.com/bbs2/uploads/post-14732-1612554799.jpeg) |
ClayPerrine |
Feb 6 2021, 12:06 PM
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#10
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Life's been good to me so far..... Group: Admin Posts: 15,416 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
Here is what I know based on my 964 engine. This is definitely a 993 harness. Some of the connections are different.
(IMG:http://www.914world.com/bbs2/uploads/post-14732-1612554799.jpeg) The 4 pin round connector is the MAF sensor. The 3 pin green connector goes to the right knock sensor The flat 2 pin connector goes to the resonance flap vacuum solenoid. There should be a 3 pin connector near there that goes to the throttle switch. The other black 2 pin bosch connector is for the canister purge valve. (IMG:http://www.914world.com/bbs2/uploads/post-14732-1612554772.jpeg) This looks like the connection for one of the ignition ignitors. But I am not sure. (IMG:http://www.914world.com/bbs2/uploads/post-14732-1612554786.jpeg) The green one is the left knock sensor connector. (IMG:http://www.914world.com/bbs2/uploads/post-14732-1612555268.jpeg) This is the connector to hook the DME harness to the engine harness. (IMG:http://www.914world.com/bbs2/uploads/post-14732-1612555253.jpeg) The empty connector is the heater blower sensor. The thing plugged in is the heater blower low speed resistor. The flat plug hooks to the heater blower motor. You don't need any them. That is the stuff that I think I know what they are for. If you send me your email, I have a 993 wiring diagram that has all the DME stuff in it. Clay |
bahnzai |
Feb 6 2021, 02:49 PM
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#11
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Member Group: Members Posts: 305 Joined: 26-July 06 From: Columbia, SC Member No.: 6,509 Region Association: South East States |
Hi Jerry,
One important thing you need to look at, while your at it, is the Engine harness (the one that has the major supply and ground wires for the alternator). There was a recall by Porsche on these 1995 units in the early 2000's. Their supplier used the wrong material in the wire insulation. After a few years it would become brittle and flake off like plaster, with disastrous results!! Peel back the the rubber harness cover to look for it. I ordered a Factory replacement last year from Sunset Porsche for $117. Part number :000-043-204-61 Harness Repair Kit (it is listed as a repair kit, but is actually a complete new Porsche harness). added a couple if pictures of how bad the original harness was...I was totally clueless. I had been driving the car a few years, got caught out in a heavy rain, then started get tons of random electrical issues that I could not find or trace, that made no sense. |
bahnzai |
Feb 6 2021, 03:51 PM
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#12
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Member Group: Members Posts: 305 Joined: 26-July 06 From: Columbia, SC Member No.: 6,509 Region Association: South East States |
Clay has ID'd several there. I will add a few pictures to show the connectors plugged on the motor, and a string of connectors not used. Notice the the injector plugs are color coded according to cylinders on each bank.
Left bank injectors right bank injectors plugs not used plugs not used plug not used right side -green knock sensor, white-head temp sensor ignition module |
bahnzai |
Feb 7 2021, 07:24 AM
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#13
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Member Group: Members Posts: 305 Joined: 26-July 06 From: Columbia, SC Member No.: 6,509 Region Association: South East States |
One last bit of info that helped me ID harness plug/components
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Jgilliam914 |
Feb 7 2021, 12:51 PM
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#14
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914 Guru Group: Members Posts: 5,327 Joined: 30-July 12 From: Iowa / Florida Member No.: 14,732 Region Association: Upper MidWest |
Many Thanks!!! This should get me on to the next project!!
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bahnzai |
Feb 8 2021, 06:06 AM
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#15
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Member Group: Members Posts: 305 Joined: 26-July 06 From: Columbia, SC Member No.: 6,509 Region Association: South East States |
Jerry, good luck moving forward. Most everything on my engine was still left from 1995. While I had it out chasing the harness, I went ahead and replaced the drive belt on the dual distributor. Also had the fuel injectors rebuilt, Rockauto was pretty economical, around $30 each. I think I found the factor plug wire set there too (relatively economical, but still pricey due to twin plug double the wires).
I will be glad to hear how you like the engine in the 914? With fuel injection and hydraulic lifters, it is pretty much trouble free. |
Jgilliam914 |
Feb 24 2021, 10:32 AM
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#16
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914 Guru Group: Members Posts: 5,327 Joined: 30-July 12 From: Iowa / Florida Member No.: 14,732 Region Association: Upper MidWest |
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ClayPerrine |
Feb 24 2021, 11:58 AM
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#17
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Life's been good to me so far..... Group: Admin Posts: 15,416 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
I can't help with that one. That plug is not on a 964, only a 993.
Clay |
mepstein |
Feb 24 2021, 12:04 PM
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#18
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914-6 GT in waiting Group: Members Posts: 19,245 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
Does PMS have an adaptor?
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Jgilliam914 |
Feb 24 2021, 12:19 PM
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#19
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914 Guru Group: Members Posts: 5,327 Joined: 30-July 12 From: Iowa / Florida Member No.: 14,732 Region Association: Upper MidWest |
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bahnzai |
Feb 25 2021, 04:43 AM
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#20
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Member Group: Members Posts: 305 Joined: 26-July 06 From: Columbia, SC Member No.: 6,509 Region Association: South East States |
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