Mongo

I share your frustration right now Stuart. Tomorrow will be my day of fun too. Good Luck!

John Speake

We tested your EZK, so now it's relay time.....

stuartph

John

So the sine wave shows that the EZK is working correctly then

frustrated

Asked the guy who did my S4.
Check terminals on plugs to ECU/EZK for corrosion or bent pins.
TDC sensor or RPM sensor wires dislodged?

John Speake

No, that was the input signal to the EZK. The EZK has three outputs, one to each coil driver output stage (up near the hood latch) and the other is a 12v square wave that wakes up the LH and also drives the tach.

Have you swapped the EZK relay for a known good one ?

Check the ground for those ignition output stages, at the front.

stuartph

Guys

I've been on the car today and this is what I have found

Checked EZK relay and power to relay 12.29v

Check power and LH relay 12.29v

Replace both relays with good working ones, no start

Check continuity from final stages and earth all ok and check earth point

Check continuity from EZK to final stages all ok

Check sine wave for final stages correct pattern shown

Check for continuity from EZK pin 13 to LH pin 1 no continuity, so is this my problem as to no start and no tach movement

Can I test by joining a wire from 13 to 1?

John Speake

Make sure there isn't a short to ground from either end. Double check you haven't fitted a relay in the kick down relay slot.

Double check you had the correct pins on each connector....

VehiGAZ

This is worth checking - I had two relays swapped into each other's positions, and it was only when I took a very close look at the very tiny caret marks printed on the CE panel that I realized a simple mistake had been made by the PO.

Good luck!

stuartph

I will double check everything again tommorrow have given up for the day now

Can someone confirm the wire colour for pin 13 EZK and pin 1 LH, MY90GT

The wiring diagrams i have show that 13 and 1 are linked with nothing in the middle is this correct ?

Stromius

Stuart...reference pics just to be sure you have the right pin outs:

stuartph

Stefan


Thanks for those

Looking at the diagrams does it mean at the bottom of each plug on the 90MY the wiring came in on other side of plug but pins stayed same number ?

stuartph

No relay in the kick down relay slot

John Speake

Yes..... and even if that wire to pin 1 LH was open circuit, you sould still have a spark......

Mrmerlin

drop the CE panel and look for melted wires any wires that got hot will have a shiny insulation the normal color is a satin insulation finish

stuartph

CE panel is now removed from the car for closer inspection