Subject says it all really ...

1996 IL4 Zetec /Std Tranny

New Plugs/Wires
New Fuel Filter
Fuel Pressure is around 38psi (42psi with regultaor disconnected)
No apparent vacuum leaks
IAC cleaned (not checked resistance yet tho)

The idle is a little lumpy almost stalling at times
Under hard acceleration it bogs down around 4000rpm if you use half throttle it seems fine all the way to the redline

Exhaust doesn't seem restricted ,and it just passed a Canadian Emission test any ideas?


Thanks