jbourgeois wrote:> >

I could be wrong, but I think you will have a very hard time finding a> mass air flow sensor on that car. Most Honda's use Manifold Absolute> Pressure sensors instead. The MAP sensor is typically located on top of> the throttle body, but I have never heard of a MAP sensor that needs> cleaning.>

Some engines us a MAF (mass air flow) sensor to directly measure the> mass air flow, on Honda engines the ECU calculates the mass air flow> based on the output from the Manifold Absolute Pressure sensor, the> Intake Air Temperature sensor and the Throttle Position Sensor.>

One possible cause of a "too lean" code is a leak in the exhaust system,> upstream of the oxygen sensor. If you have an exhaust leak, you will> both get exhaust leaking out and fresh air going into the exhaust> system. Fresh air going in will cause the oxygen sensor to sense oxygen> in the exhaust, thus making the ECU believe the mixture is lean.>

Another thought is that if the fuel pressure is too low (failed pump or> failed fuel pressure regulator) the injectors may not be able to inject> enough fuel, even if left open for the maximum amount of time available.> This would cause a lean condition as well.>

Let us know what you find out!