Fast Ez efi

Scoots340 said

Perhaps I need to drive it more. I reset the computer after adding the regulator when I got the car it was running 80psi. Checked my base timing.

The model I have doesn't have a data logger. The throttle body looks like the version one but display looks like the 2.0.

The afr swings rich and lean. Could be the 02?

What is everyone using for their afr targets?

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Does the engine idle rough or does it just act up under throttle? Is AFR ever steady or only when you feel the hesitation you describe? Is it an external AFR meter or one that is built into the EFI controller? Check the O2 sensor, they should be mounted with an angle pointing downward in the exhaust. If it is horizontal or pointing up, they are susceptible to moisture settling in them and can cause failure. If you have a bad O2 and the controller is using it as the fueling target, you are going to have problems. Is there a way to turn off AFR control in the controller? That way it will run open loop and ignore the O2 sensor.