MEFI 3 equipped models had no O2 sensor feed back
for closed loop operation or air temperature
compenstaion. These engines ran very rich, fuel fouling spark plugs and as a result poor fuel economy.
ASM offers calibration of the ECU to correct
overly rich running condition on MEFI 3 ECU's
and toggle on these features, and provide the O2 sensor upgrade.
On later model MEFI 4A ECU's with "high idle"
conditions we can correct those problems, as
well as over temperature RPM reduction.
Just fill out the Calibration Order form
on the Home page and send the ECU with the
information to the address shown on the
Order Form.
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