Misfire when cold.. Any ideas?

[BenS_172]

My 182 engined 172 is intermittently running on 3 cylinders until it gets up to temp, when the problem completely goes away.. Engine management light flashes too, though if I turn the engine off and start it again as soon as it's warmed up the light goes off...

Coilpack maybe?

Thanks!
Ben

 

[NWPerformance]

Coil pack, plugs,map sensor, HT leads, lambda sensor

Could be anyone of them

Edit:- Or TDC sensor

 

[CHRIS172CUP]

you forgot TDC sensor too. could be any of them mentioned.

when did you change the plugs last? mine needed doing again recently. also the coil packs collect water and crack over time.

french engineering rocks

 

[BenS_172]

Plugs have done about 15k, coil packs about 40k..

 

[NWPerformance]

Might be lambda sensor i would get it tested.

 

[BenS_172]

Will do - cheers for the replies.

 

[CHRIS172CUP]

Might be lambda sensor i would get it tested.

if you can get a compression check done too