Slap on
the rich fuel mixture and run with it for too long and you'll find your car stuttering towards the end of the race, barely able to accelerate out of the corners.
I only changed oil, tires and brakes on that one but the engine light started coming on (
rich fuel mixture) and the transmission started doing it's goofiness at about 120,000 miles.
Think about an engine with a too
rich fuel mixture.
Not exact matches
«The typical Mexico City car is a Volkswagen beetle several years old, running on a very
rich air -
fuel mixture of 8:1 in order to develop adequate power at the city's altitude of 2400 metres,» says Stephen Bryen of Lean Power Corporation of Silver Spring.
When its cold the
fuel injectors are commanded to inject extra
fuel, and your cars idle speed control valve is commanded to increase idle speed to prevent the engine stalling from a now
richer mixture.
Jim theorizes that low coolant caused portions of the engine to get too hot, so the temperature sensing computer thought it was very cold outside, and made the
fuel - air
mixture too
rich (less air).
If the
fuel mixture is lean, there are lots of oxygen -
rich compounds but little carbon -
rich compounds.
@MeltingDog, if by flooding you mean that the air -
fuel mixture is too
rich for ignition to take place then yes, that is the hypothesis.
This tells me that the cold - start enrichment, where the air -
fuel mixture entering the cylinders is slightly
rich, isn't taking place.
The probe then tends to report lean
mixture, the ECU enriches the
mixture, the exhaust gets
rich with carbon monoxide and hydrocarbons, and the
fuel economy worsens
The black smoke may be from the unburned
fuel drawn thru the carb causing a
rich mixture on restart.
High (CO) is the result of one problem, a
rich air /
fuel mixture but may have several causes.
If the air filter is clogged enough, the resultant air -
fuel mixture could be too
rich for
fuel management to rectify, resulting in sputtering / stalling.
Even though the updated engine configuration uses
richer air -
fuel mixtures and more spark advance, Volvo says the C70's
fuel economy ratings of 19/28 mpg (city / highway) are unchanged.
The Colortune isn't to determine the color of the spark, but for the color of the combustion itself, which is useful for tuning
fuel / timing (leaner
mixtures will be bluer in color, where
richer mixtures are redder.
A higher percentage of
fuel to air is described as a
rich mixture, while a lower percentage of
fuel to air is termed a lean
mixture
The stratified charge puts a
mixture that's
richer near the spark plug for easy ignition, while other areas on the combustion chamber have a leaner
fuel / air ratio.
Wide - band lambda sensor analyzes the air -
fuel ratio and adjusts the lean /
rich mixture accordingly to keep the system in balance and to minimize emissions.
A particularly
rich and therefore ignitable
fuel / air
mixture is therefore available only in the direct vicinity of the spark plug.