Stuttering under load

[Wellbs]

Recently replaced the coil pack and ht leads with a red magnacor set and used oem coil pack that I got from a member on here.
Instantly got what i guess is a misfire? the car hesitates under load at low revs, exhaust is popping on downshifts which it didnt before.. it does need welding but again didnt do that before.. (milltek).
Have changed the coil back to my original but is still there? Is it the leads? Checked they were all on ect. Any help would be appreciated!

Jack

 

[imprezaworks]

You put the original leads back on too

If not do that

 

[oVerboost.]

I would re-fit the standard leads and see if the problem is there or not.
If it is, then double check you've not knocked any sensors or wiring when removing the inlet manifold to fit the new leads etc.

 

[bloke]

trapped lead?

 

[Mr Plums]

Yup, normally leads under load.

 

[Wellbs]

Will swap the leads back then!

I tripple checked that they were on correctly and they weren't trapped.

All sensors look to be ok and on correctly, haven’t had a light come on though?

 

[imprezaworks]

Leads at a guess.

Didn’t someone else a bit a go have issues with these make of leads?!?

 

[Wellbs]

Thought i got a good deal from a member at £40 considering new leads are about that anyway - i see why now..

 

[Mr Plums]

Thought i got a good deal from a member at £40 considering new leads are about that anyway - i see why now..

Make sure theyre oroginal magnecores, cheap ebay copys are proper shite!