V6 misfiring plz help!!!!!

[ftov6mivecfto]

ive got an fto v6 mivec

and its misfiring badly on cylinder 1

ive changed the coil packs, leads , and plugs

injectors are working and plug is sparking
tryed a quick diag on it but could point me it right direction

can any one help me please!!

thanxs

[d_dan]

have you tryied different leads?
have you tryied adjusting the timing?

[colm_mcm]

you may need to do a "leak down" compression test.

[ftov6mivecfto]

leads and coils have been replaced!

and leak down test is ??? thanxs for any more help recieved!

[Kace]

ive got an fto v6 mivec

and its misfiring badly on cylinder 1

How can you tell that it's actually misfiring on a cylinder ? Is it lack of acceleration or jumpiness ?

[ftov6mivecfto]

pluged it into a diag and it told me it cylinder 1 missfiring!

[ftov6mivecfto]

also you can tell by the lack of power etc and exhaust note

[colm_mcm]

Leak down test is where you measure compression leakage in each cylinder using compressed air. it can tell if you're losing compression through valves, head gasket etc.

I'd say bring it to a garage, there may have been something that you've overlooked.

[steelroe]

Is the coil pack bolted down properly. Is has to be bolted to ground the coil. Is there any corrosion on the coil bolt holes.
I would suspect either the coil pack or plug lead. But there is no plug lead on cylinder one, only the plug cap `that attches to the bottom of the coil. Did you replace the entire coil unit.

Useful info here http://www.aa1car.com/library/misfire.htm

[steelroe]

Was the intake manifold removed for any reason.

Was any work done on the car before the problem started

[ftov6mivecfto]

I have compresion tested it and all cylinders are the same

so that rules out anything mechanial?!

im told now its electrical and would probly be a sensor

the coils were changed + leads and yeah there bolted down properly

No works been done previos to this problem