V6 Misifiring BADLY

[coppen]

My 2000 2.5 V6 is misfiring badly to the point it stalls and isn't driveable as no power. It did drive fine albeit with a slight misfire but now the misifire has gotten really bad.

I've replaced all plugs, leads, rotor and dizzy cap with genuine mazda items BUT the misfire is still the same and hasn't been cured. There's no EML light on the dash.

What's the next thing to look at? Coil pack/ignitor? Fuel? (Has just had a new tank and fresh fuel).

Also, what specs are the king lead (length, thickness) as the genuine ht leads i bought didn't come with one so need to source one. Is it a generic lead?

Here's a video of the misfire.....skip to 16min30. https://www.youtube.com/watch?v=GHbrAV0I1AY

[g8dhe]

If it's just had a new tank and fuel, maybe something has gone down into the injectors and blocking them? But many different faults could be the cause. Why the change of tank?

[Eat Aunt]

Same for mine a couple of years ago

I spoke with George in the workshop at Bongo Spares

It needed a new distributer driver . Sorted it.

[coppen]

If it's just had a new tank and fuel, maybe something has gone down into the injectors and blocking them? But many different faults could be the cause. Why the change of tank?

The salvage yard forkilifted it onto their truck for delivery and completely crushed the fuel tank. It did have the misfire prior to this but not as bad.

[g8dhe]

Ouch yes that wouldn't do much for the tank! I wonder if they did the same when it arrived and hence a load of muck in the fuel system, as you say at the end time to have a look at thru the fuel system and injectors. Might be worth checking that your getting a consistent spark at all cylinders as well to make sure its not a problem. as "Eat Aunt" suggests with the earlier parts of the HT generation before the distributor.