As effect of some threads 'bout HC dials, let me present that mini guideline for anyone who is willing to made some styling by himself.
Potential problems spotted:
1. General dials wiring, pins location, an controls location.
2. Rev counter differences
3. GDI control in EA3x vehicles
If you have just EA5x vehicle only one problem you have is the dials wiring. Owners of EA2x, EA3x, and EA6x have to modify rev unit, and EA3x needs also GDI control.
Then let's begin!
General dials rewiring:
Pins and bulbs on back needs to be rewired:
1. Screen washer control – pin no 3 - make the bridge to proper bulb
2. Oil level control – pin no 5 - make the bridge to proper bulb, cut wiring path just after made bridge
3. 12V feeding HC – make the bridge from pinu no 4 to wiring path from pinu no 5 just after cut
4. GDI light control – made in free place for control just below „check engine” control – the bridge from pin no 16 to wiring path of pin no 8. Then, cut wiring path to isolate that control, and provide 12V to bulb as well - see picture.
You can find my rewiring solutions on attached picture:
[IMG=http://img231.imageshack.us/img231/8660/modyfikacjazegarwhcjpgzj7.th.png]
dictionary:
"przerwanie" - cutting
"poziom oleju" - oil level
"spryskiwacz" - screen washer
Vehicles with GDI engines needs additional GDI control. The only solution is to make own GDI control. I personally wouldn't do it and use present "tow bar" control as GDI, but if we are desperate, then follow as:
1. print on any good colour laser printer sticker with GDI control (suggested dark green transparent foil and black ink/toner),
2. then remove/clean proper area using screen-printing disolvent (both sides of dials are printed in black, so you have to clean both one),
3. dry, and paste your sticker onto upper (visible) side.
These will look nasty and awful, so the only solution to camouflage it - make darker that plexi shield on dials using any window tintenig foil (smoked/brown colour). It may look like this:
[IMG=http://img155.imageshack.us/img155/1129/p1000906po8.th.jpg]
But, in my opinion - avoid it. Too much effort, and result might be real nasty if you have no experience. Just rewire any not used control.
Rev counter modification:
Rev counter unit needs to be modified if it to be placed in vehicle with 4G63, 4G64 or diesel engines (4 cylinder).
This is a unit from 4 cylinder vehicle (possible minimal differences, but not important):
[IMG=http://img164.imageshack.us/img164/8750/klasycznyobrotomierz4g6vc9.th.jpg]
Blue - the elements to replace onto HC rev unit.
Another picture with these elements:
[IMG=http://img91.imageshack.us/img91/584/widokzgryklasycznejpytkfg7.th.jpg]
This is rev counter taken from 2.4 GDI (4G64) vehicle, in case of petrol engine 2.0 (4G63) or diesel the difference is in paralell resistors: in 4G64 value is 6.1kΩ (resistors 15k and 11k), but in 4G63 value is 5.8kΩ. In reality there is no matter, so you shouldn't be bothered (possible wrong indication of 50-100 revs).
This is rev counter unit HC from vehicle with engine 2.5V6 (6A13). Blue elements should be removed.
[IMG=http://img240.imageshack.us/img240/5439/obrotomierzhc6a13vy2.th.jpg]
Elements to be removed.
[IMG=http://img91.imageshack.us/img91/2431/widokzgryhctl9.th.jpg]
Final picture of modified rev counter. Blue - elements already replaced. Watch the wiring path cutted and resistor 24kΩ placed there. (I placed one from wiring side). The same, I placed 10kΩ resistor between diode and +12V from wiring side (diode was placed just into 42kΩ resistor place - from elements side).
[IMG=http://img164.imageshack.us/img164/1016/modyfikacjaobrotomierzaaj1.th.jpg]
And finnaly, plug and play. It's working with no fuzz or mess. Just as pictured:
[IMG=http://img155.imageshack.us/img155/2449/p1000908pr4.th.jpg]