whiteNSXs

I did a search but could not find the answer. I have checked 928 International site and it has a simple tutorial on how to remove the LH but I am stuck.
So my car is a 1987 auto and I located the LH at the right footwell. I unlocked the locking tab and was able to detach the upper portion of the harness but the lower corner of the harness just won't budge. Is there some kind of trick to detach the plug? I did not want to force it out fearing that I might break it.
Thanks.
Steve

Speedtoys

Two 6mm bolts, IIRC, that hold the frame they are connected to.

Remove LH and EZK harnesses, the two bolts are at the top and bottom at the front (near the door) end of the bracket.

Then its a game to get em to come out..the bracket pulls out away from the firewall first, and it can lean down and come out towards the floor area.

For the harnesses...

Pull out slack from the harness so you can get a larger angle of separation from the unlocked end of the harness, and it will lever out of the other end of the harness plug.

Its like a J into a hook..it wont come out straight, lever out then free end, and it will unlock.

FredR

The LH plug pivots on a "hook" as it were at the wiring end of the plug.

To remove the plug you pull the locking tab, the plug lifts at the front end and when fully extended you should be able to maneuver the wiring loom end of the plug out of the pin it straddles.

As I remember the 87 model has the wiring harness coming from underneath - perhaps you need to ensure the harness is not somehow trapped restricting movement. As Speedtoys says the whole lot is held in place by two small bolts and I think you need a 10mm socket to get them- after that the whole job lots pulls straight out but I have a feeling you need to get the plugs out of the way first [I have never tried to remove the assembly with the plugs attached as it makes no sense to do so].
Rgds

Fred

the flyin' scotsman

My '88 S4 unplugs the computers differently from each other.

I dont recall which is up and down but the LH cable comes from below and the EZK from above or vice versa. Unlock the plug and pivot off the tab end of each computer then as described above remove the bolts which hold the assembly to the car. Once out the EZK and LH can be seperated from the assembly brackect then can be further disassembled if needed.

Electrical spikes can KILL these units so I always disconnect the battery and ensure Im well grounded when aound the computers.

Speedtoys

Yet we dont see stacks of burnt up ECU's from a bamillion Bosch powered cars all over the internet/world from jump starting, replacing batteries...

A good idea, in general, sure, but I think as a community we're a bit over emotional about it will KILL the ECU's.

whiteNSXs

Thank you all to have contributed to my success of removing the LH. The lower part of the plug has a complex shaped "tab" that hooks onto the LH box. Pivoting on this tab, the plug mates with the LH. The most difficult part is to wiggle that tab to clear the recess on the LH box. It is not of a simple up and off but a lot of negotiation. I took off the tray under the glove box just to clear view what the assembly looks like but I probably did not need to.
Thanks again so, so much for your great and invaluable advice.
Steve

Mrmerlin

yes removal of the parcel tray is a wise choice,
it aids in visual and makes room for the harness to move as you pivot the connector

Rob Edwards

Just for posterity, there's a picture of the LH and EZK harness arrangement in the '87 service info book, is this the orientation in your '87? One un-bailed gray EZK connector and one bailed black LH connector?

whiteNSXs

Rob,
Yes, the configuration is exactly like the picture. When I could not get the bottom part of the plug out, I even unfastened the small silver screw at the bottom of the plug but of course it did not help.
Steve

Rob Edwards

The hook on the end of those harness connectors is a bear. Here's a shot of the hook, for anyone looking for a pic in the future, to give a sense of how far one needs to rotate the connector before it'll let go (nearly 90 degrees):

whiteNSXs

Yes, the hook is so "hooked" that I am thinking about filing it down as the rest of the tab should do the job just fine.
Steve