Strange misfire? Help!

[ben_blablabla]

So my 182 has developed a strange, constant misfire. Basically all of a sudden I lost ~%50 of power and it has been running very lumpy. I have taken the injectors out, tested them (all seem fine) and replaced in different cylinders.

I then checked the plugs – 1 and 4 were firing as they should with 2 and 3 having no spark at all. I tried a combination of leads and plugs all ways with the same result – a spark on 1 and 4 (rhs on the coil pack) and no spark from 3 and 4 (lhs on the coil pack).

This made me thing the plugs and leads are fine and it must be the coil pack. I replaced this with new (and tested okay on my friends 182 today) and I have the same problem?


Can anyone help as I’m finding it hard to work out what could cause the coil pack to only have a spark on the 2 rh outputs (1+4) and not the left (2+3)?


Any help will be greatly appreciated, thanks,

Ben.

 

[bloke]

wiring.

 

[STEVE.M]

As above,or ECU.Check you have no spark on the cylinders that are not firing.
Check for 2 live feeds to coil.
Are there any dash lights on?If so,get the codes read.

 

[ben_blablabla]

As above,or ECU.Check you have no spark on the cylinders that are not firing.
Check for 2 live feeds to coil.
Are there any dash lights on?If so,get the codes read.

Definitely not got a spark on 2+3, I have checked and I only have one live feed to the coil (when cranking) so I guess it could be a break in the loom? The eml is flashing constantly, my eBay special code reader is just giving me p0300 multipul cylinder misfire. Think I'm going to get it to a garage as I'm stumped...

Cheers,
Ben.

 

[bloke]

flashing eml is injector.

 

[ben_blablabla]

flashing eml is injector.

No the injectors are all fine, I swapped them around the the misfire stayed on the same 2 cylinders. The fault is that I don't have a spark on 2+3, I just don't know what's causing the lack of spark.

Cheers,
Ben.

 

[StrongboW]

It is sounding more and more like a electrical fault.

 

[STEVE.M]

Check for 2 live feeds to coil.

Please ignore this comment as it`s a load of tosh.

As Ben said correctly,there is only one live feed wire,and then only when cranking the engine.

My apoligies.

 

[ben_blablabla]

Cheers for the suggestions, I'm still puzzled.
Typically I drove it to work and back today without even a hint of a misfire? Self fixing French cars again!