Having problems with my 1995 STI Type-RA. Its developed a miss fire on the 4 cylinder. Ive checked the compression which is fine, changed the coil plug, put new spark plugs and also checked the injector but cant seem to get rid of it.

Any suggestions will be highly appreciated, ive run out of options.

 

did it flash up any fault codes

 

No fault codes....

 

Anybody out there?

 

Loose spark plug?

Knackered plug?

Coilpack seriously broken down? If so, I'd recommend replacing all of them.