V8 wont start, Please Help.

[300TDi Disco]

Firstly i notice when i had the ignition on the rev counter needle would flick from one side to the other and the got lack of power, so i changed the leads  over for some performance silicone ones and now it doesn't start. I then changed the leads back to the original ones and it still doesn't start. I have had the lead from the coil to the head of the engine to check out for a spark and guess what, No Spark. I have changed the coil as i thought the coil had gone down but still no spark. any idea's???? It has a range rover 3.5 v8 engine if it makes any difference. Hope someone can help, Cheers

[craig_midz]

igntion amplifier on side of dizzy or wire come off coil possiably

[Range Rover Blues]

Did you take the dizzy cap or rotor arm off when doing the leads?

[300TDi Disco]

igntion amplifier on side of dizzy or wire come off coil possiably

I had a thought of the amplifier. next thing i will try. cheers

[300TDi Disco]

Did you take the dizzy cap or rotor arm off when doing the leads?

I have took the cap off but didn't touch the rotor arm. What you thinking?

[forestrynick]

Before people get too carried away, what exactly have you got? is it a 3.5 carbs or efi? Do you still have points type dizzy or electronic?

Nick

[Range Rover Blues]

Did you take the dizzy cap or rotor arm off when doing the leads?

I have took the cap off but didn't touch the rotor arm. What you thinking?

Sometimes you can damage the guts of the dizzy by pulling the rotor arms off, you need to hold the metal post down with a screwdriver.

[300TDi Disco]

Before people get too carried away, what exactly have you got? is it a 3.5 carbs or efi? Do you still have points type dizzy or electronic?

Nick

it's EFI and electronic.

[Range Rover Blues]

Before people get too carried away, what exactly have you got? is it a 3.5 carbs or efi? Do you still have points type dizzy or electronic?

Nick

it's EFI and electronic.

Cool, which EFi? and is the amp screwed to the dizzy (most common)

[300TDi Disco]

Before people get too carried away, what exactly have you got? is it a 3.5 carbs or efi? Do you still have points type dizzy or electronic?

Nick

it's EFI and electronic.

Cool, which EFi? and is the amp screwed to the dizzy (most common)

Amp is screwed on the side of the dissy. I have spoke to someone today and they said about the connections but i have checked them and still nothink.

[300TDi Disco]

I have had a look at it today and i have a cable going straight to the amp but only give a current when ignition is on. and the cable off the amp pack going to the positive on the coil??? (Thinking somethink wrong ere). Am i right in saying that both cable's should go to positive and negative on the coil from the amp pack? Does anyone know how many cables should be coming off the coil? I have: Positive:- Amp pack, rev counter, and fuel cut off relay Negative:fuel cut off relay, Small round condensor which grounds to the body. Does the amp give the coil, power to create a spark?

[300TDi Disco]

Here is a crappy diagram but it shows whats going on with my wiring.

[solihull-mick]

If thats how its wired up no wonder it wont start mate!

[300TDi Disco]

If thats how its wired up no wonder it wont start mate!

Thats what i thought.