soontobered84

Yup. I did that. No smoke with the pod out and switches disconnected. But unfortunately, no spark either.

soontobered84

Coils have 12V at terminal.

Lizard928

Relay, and grounds

soontobered84

Colin,
I cleaned all the ground points inside the car, and obviously I can go along with cleaning the rest of the ground points, but which relay would control spark?

Mrmerlin

XVI =EZF spark
XXV LH injection
XX=fuel pump

Lizard928

There is also ground connections to the brain which might have gotten disturbed too.

They are in the engine valley, under the jump post/14 pin connector, and the 2 above the fuel panel.

Have you verified proper voltages to the EZF plug with the ign in the on position?

Landseer

On the 84 Euro the relevant grounds for the computers, Maf and injector harness are located on the passenger side cam cover in two places. Ground for the final stages is behind passenger side mickey mouse ear/cam backing plate.

soontobered84

I'll clean those particular grounds up tomorrow and check it out. You can never have your grounds too clean after all.
Thanks for the suggestions.

soontobered84

I don't have a XXV relay. The numbers just don't go that high. I have jumpered the fuel pump relay and I did replace the XIV relay (starter) because it seemed a little hinkey. I have previously cleaned all the grounds above the Central Fuse Panel. I cleaned the grounds on the passenger side cam cover and the driver side coil today. I couldn't find (yet) where the passenger side coil ground is buried and I just missed the ground for the final stages (ignition amps), but I'll get them tomorrow.

So far, nothing I have done has given me a glimmer of spark.

Tomorrow (Today now) I am going to swap out the ignition switch with a known good used one that I have on hand and clean the final stages ground. I will also try to check for voltages at the EZF connector with the key in the on position.

Thanks for the additional suggestions

Landseer

There are no coil grounds. Those were added in 85 for radio noise suppression.

This no spark thing is weird.

Could some of the harness wires have been fried?

Mrmerlin

I was using the 85 86 fuse chart from 928GT for this ,
since you have the early LH
the 84 chart didnt have the relays I was looking for,
please use your relay chart.

there are also grounds in the hatch,
look for brown wires and see where they go behind the RR quarter liner area in the hatch

Landseer

Am showing that E8 is indeed connected to hazard lights per Doc.
Only one black wire, at position E8
E is a black plug, btw.
(behind the panel I guess E8 must split into two wires)
But in the dash, where E8 goes, it is a major mega feed for power for the lights in the switches and dash, also connecting to the potentiometer, and there is a in-harness junction where 6 other wires radiate from that E8.
Obviously the melted E8 is linked with the dash lighting change you made.

I think your no spark situation might involve separately a plug issue on the CE panel from your cleaning / refresh activity.
Hopefully it is that easy, and not some cross short.


I can pull the CE panel from the Euro 84 here to compare with you if that helps in any way. Let me know.


Should we confirm the colored plugs are reinstalled in the correct order on the bottom row of the CE?


Also, I've got the 84 Euro relay chart handy.

VIII is the electronic ignition brain (EZK?). (normal 53)

XVI is LH Jetronic (normal 53)

XVII is fuel pump. (special)
Fuse 13 is the 16A fuse for the pump.


I'd consider bridging the alarm too. Z4 to Z6, 1984 cars only.

If that didn't provide the quick fix, then back to the site of smoldering wires behind and radiating from the CE panel for some CSI investigative work.

Keep the faith!

Landseer

Euro 84 lower plug layout:
Listing top to bottom, representing left to right of panel
A is the first position, far left of panel.
X is the last position, far right of panel.

There is no "I" position on the panel, they didn't use this letter at all.

Positions R and W are skipped, no plugs at those positions. Both have blue bases on the CE panel with no electrodes sticking out.

Positions Y and Z are located out of sequence, in the center of the row, sandwiched by Red N on the left and White O on the right.




A Yellow (color of the plug itself)
B Blue
C Red
D White
E Black
F Yellow
G Blue
H Red
J White
K Black
L Yellow
M Blue
N Red
Y White (short plug, 6 terminals, Antilock option)
Z Black (short plug, 6 terminals, Alarm option)
O White
P Black
Q Yellow
R OPEN (base on CE panel is colored blue, no wire distribution plug fitted)
S Red
T White
U Black
V Yellow
W OPEN (base on CE Panel is colored blue, like above R, no plug fitted)
X Blue (NOTE---Base on CE Panel is reddish --- not blue -- but plug itself is blue)

Plug color is matched to the base color receptacle for that plug on the CE panel
EXCEPT last postion "X".
At "X" position, a Blue plug is fitted to a reddish base receptacle.

X position distributes power to the engine electronics. Make sure Blue X plug is in the right place at the far right side of the panel, fitted to the reddish base at that position, and not one position inboard at W instead.

( I've made that mistake before and felt pretty dumb )

If its already in the correct position, then try individually reseating each wire at X plug while plug is installed.

If no start, then I'd pull panel and look for any hiding melts that might have compromised any wire behind panel associated with X plug or the EZK or LH relay

soontobered84

Stan,
I knew where you going with that. I replied to your suggestion only so you wouldn't think that I was a complete DA.

Chris,
Thanks for the plug colors. I checked mine versus your list and they seem to all match up.

I have removed the pod totally including all the light switches. Key on does not smoke any wires, but unfortunately, does not provide any engine spark either.

I replaced the ignition switch in the off chance that me screwing around with it messed it up. Nope, no change, no spark.

I disconnected the battery, removed the computer connections, and found that I have NO POWER to any connection in either computer plug. I don't figure that that is good, but maybe it help narrow down the problem.

Thanks to all for the helpful suggestions to this point.

soontobered84

BTW, I already replaced all the fuses