Dave If you think all of the connections are correct and the problem is running rich after changing the fuel pump my guess now would be that the old pump was not making enough pressure. If the relief valve is set to high and not returning fuel to the tank or a line is plugged up that could be a problem. Another possibility is that the cold start valve is leaking or stuck open and the additional pressure of the new pump has highlighted a prior underlying problem. A final possibility is that the fuel mixture unit is way out of adjusment or the freq valve in the lambda circuit is leaking. You might even have a bad injector. Pull all of them and squirt them into 6 cups and see if they are squirting equaly. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxx, "Dave Stragand" <dave.stragand@xxxx> wrote: > David Teitelbaum wrote: > > > My guess on your fuel pressure problem is that you might have not > > connected all of the fuel lines correctly. I don't know exactly