New coil, new ht's new plugs, still stuttering

[Djw John]

I've replaced the above parts with brand new parts, cleaned the tdc sensor (which looked fine) cleaned the ICV (as a course of desperation) and it still stutters on light throttle load.

I can make it do it by idling at around 2750rpm but on the road it will stutter at all revs on a light load. Sometimes. It doesnt seem to affect WOT and it is just as fast as Daves 176bhp 172.

So is my next bet lambda, injectors or OBD2 reader?!

Cheers
John

 

[Djw John]

Also meant to say that the emissions light flashes for a while once in a blue moon!

 

[Martin_172]

id say possibly lambda, i think i have a spare cutting about somewhere you could try

 

[Djw John]

That'd be cool Martin, its defo a working one?

Cheers

 

[Martin_172]

it was working when removed from the car about 2 years ago, ill have a look it was in my 172 manifold i dont know if i gave that back to joe or not tho when i sold the car

 

[sideways danny]

likely the lambda sensor by the sound of it

 

[bmh.01]

I'd go with lambda too as it goes open loop under wot.

 

[Djw John]

Cool, new lambda it is then. Most likely to be the pre-cat one yes?

 

[Kenned4200]

Cool, new lambda it is then. Most likely to be the pre-cat one yes?

Yes.

 

[Djw John]

Not been able to get round to doing the lambda yet as i'm on night 5 of 7 in a row. However, just wanted to add that the problem is defo more apparent the hotter the car is. This was confirmed after a short 'italian tune up' during my break this morning. Eml still didn't come back on though