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Re: 1991 Accord fuel mapping with/without EGR (before/after cleaning)
Posted to Technical Theory Forum on 6/21/2003

Rags I would agree 100% the PCM is ecpecting EGR flow because it see a change on the lift sensor. The fuel map would adjust for the EGR Mass and reduce the fuel Mass delivered. the end results would be lower power.

Being a 91 Honda doesn't check flow till OB... Login to read more.