98 VT Bad missfire

[Keanu96]

Hey guys. So just bought a 1998 VT Commo just cause I can and it had a bad missfire so I bought it and just assumed it was a spark issue. Anyway got new plugs and leads and new coils packs threw it all in within the order it needs to be and it runs a lot better but still has a missfire even under load. What do I need to look at next? All help is appreciated.

 

[krusing]

Get Car Scanned to see if there is any underlying issues, or DTC's in the history,

Then the things that first come to mind are as follows -
Vac Leak,
LIM Gaskets,
Faulty injector,
Faulty injector Wiring,
Blocked injector,
Could be many other sensors,
there is a few things to start with

 

[Glaze]

Under load would be DFI. I had stuffed plugs and leads but I first swapped the DFI with another one I had and the misfire disappeared... changed plugs and leads after and not much of a difference but shuddering/acceleration under load issues were still gone