Re: 10-11/mpg normal on 5.7 tpi?
Granted, he has a Speed Density system. I described his problem as if the choke plate was closed.
I guess I did forget to say his engine does not have a choke plate, hence the mention of the coolant sensor. This device tells the ECM how cold/warm the engine is and adjusts fuel mixture accordingly. If a bad sensor, open circuitry in the harness, or bad ECM stage for the sensor, then the ECM will give max fuel, regardless if MAF or Speed Density.
I'm figuring he may have a leak somewhere if he smells raw fuel. If his eyes burn while standing at the rear, then engine is overfueling. But, if over fueling, engine would run erratic, or barely run at all.
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