Zx 1993 1.8 Furio Misfire

[sleeves]

1993 ZX Furio 1.8-8V: Exhaust was blowing last week so, after a couple of days the misfire began and, so did the rotten smell of eggs(CAT; by its sell by date) At the time thought this was causing the misfire. Had the CAT and middle section renewed at a cost of £250 to no avail. Plugs, spark,idle valve,and fuel filter all been checked out with no problems but the misfire continues. Any further help much appreciated.

[techbod]

a few things to check=========

coolant temp sensor (ECT ,

injectors,

ignition system,

AIR intake system/vacuum system leaks,

fuel lines - leaks/damage/blockage,

engine control module.