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rich after 3l install

art

CEG'er
Joined
May 9, 2004
Messages
119
Location
UK
hi
having completed the 3 l conversion first dyno run shows engine running too rich and really rich over 4000 revs, still running the beige injectors and st24 maf , ecu etc, svt tb, and manifolds, racebit headers, and high flow cat
have noticed on the cougar forum , dyno print outs on 3l conversions having the same richness
why is this when the 3 l is drawing much more air, and can a remap correct this
 
why does the 3L draw so much more air .... well because its a 3L ...

More fuel is added when the secondaries open, and its already rich from the factory.

yes a tune will correct the air/fuel mixture.
 
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