Quote:
Originally Posted by jwlee7ucla
@ Pete
When coasting in neutral you will see 14.7 ( just like idle). When you coast in gear you will see an error code ( because no fuel). The wheels keep the engine rotating so no combustion is needed. Just do a quick Google search for 'does coasting in gear use no fuel' and you should be able to find a plethora of links to explain why
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You can believe the computer if you want.
By this (your) on-line theory, we should be able to breathe the air emitted from the exhaust pipe while we coast twenty miles down the western slopes of the Cascade mountains here in western Washington. Well let me tell you something, you will die if you do so! As long as the engine is "running", it is burning fuel. That exhaust has both CO and CO2 in it, proving that there is some type of fuel being combusted in the cylinders, despite what the computer readout is. If it were just air we would be able to breathe it.
When we activate the clutch after coasting in gear does the car shut off? No, it does not. Are we 'bump starting' it? No we are not.