car running very rich

[jason lebreton]

have the v3-4 subaru base map on a ej20tt (ej20h) motor base map is unchanged and master fuel is set at 8ms also on thid engine what would be the correct dwell time it is currently at 2ms cheers

[Simon]

You would need to get that dell up a bit assuming you are running V3/4 coils. Try 3.5 to 4ms

Check that the MAP sensor is reading correct and hooked up.

It should read 100ish KPa at key on and then much lower  when engine idling.

Is it rich right through? or is it rich at the bottom end and leaning out up top?

The base map is only a starting point, a full tune must be done.