Old LSE does not start after engine swap

[arthur dent]

Hi,

now after a few month break I want to get my LSE back on the road.

The original engine is gone, so I decided to put in a 3.9 short block. The heads an injection-kit came from the old 4.2.

Now after the engine swap, the old girl refuses to fire up. It turns but there is no spark at the plugs, no fuel coming from the injectors.

I followed the workshop manual to the point it asks to change the little black box on the dizzy.

But I don´t know if this is the cause of the problem. I´ll put a new dizzy in, anyway.

Do you think the issue could be caused by a swapped wire or forgotten ground connection? Silly question, I know the answer already...

But could anyone tell me wether the 4.2 has a ground lead on the back of each cylinder head or not?

Maybe a friendly LSE driver could take one or two pics of the engine bay, so I could check the wire routing...

By the way, the old 4.2 was running, when I ripped it out. There was just a bearing problem. The dizzy was alright. Is it possible to destroy that thing just by removing it?

regards

Kris

[GT6Steve]

I just went thru a similar trial and ordered a new ignition module.

To test all the electrical just disconnect the two ignition module wires at the coil and momentarily earth the negative lead at the coil. Every time you lift the earth there should be a spark at the coil wire. You'll pull it out of the cap and hold the lead near an earth point for the arc to jump to but I'm sure you know that...

All the ignition coil is doing , like points, is to earth that negative lead at the appropriate time to spark the plug.

[arthur dent]

So this will check the function of the ignition coil.

Just to be sure, disconnect the ignition module (thats the name of the black box thingy, I remember) :-), the earth the ignition coil and when lifting the wire the spark will fly from the HT-lead?

Please correct me if I got it wrong. This car is drving me mad, thats the reason I stopped working on it for a few month!

Thanks

Kris

[FridgeFreezer]

There will be no fuel until the ECU sees a signal from the coil -ve, so sort that first. There is a full EFI diagnostics guide in the tech archive if it still doesn't work after that.