Sentences with phrase «fuel mixture caused»

This may be a sign of an imbalanced air / fuel mixture caused by a failing idle air control valve.

Not exact matches

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).

The black smoke may be from the unburned fuel drawn thru the carb causing a rich mixture on restart.

The result is an incorrect air - fuel mixture than can create a number of problems, such as hard starting, a rough idle, hesitation, misfiring or a drop in fuel economy — issues that could, without proper diagnosis, seem to have other causes, such as incorrect ignition timing or fouled spark plugs.

Also, if it hasn't been changed I'd change (or have someone change) the fuel filter, these fill with crud over time and if it's partially clogged this can reduce fuel pressure and cause a lean - ish mixture.

High (CO) is the result of one problem, a rich air / fuel mixture but may have several causes.

Having both incompletely burnt fuel and excess oxygen says to me that I'm getting poor / weak ignition of the A / F mixture, causing a slow, incomplete burn.

As the upstroke happens the pressure in the cylinder is now low because the escaping exhaust gases cause a small pressure wave of escaping gas that now opens the reed value and draws in new fuel / air mixture.

Possible causes are an incorrect fuel mixture, incorrect timing, corroded spark plugs, a faulty oxygen sensor, sticking float, faulty fuel injector or a malfunctioning check valve.

Most often a faulty TPS will cause high CO, as an engine's ECU always prefers to send more fuel rather then less, in an effort to avoid a lean fuel mixture and subsequently higher engine temperatures.

Detonation is caused by ignition of the air / fuel mixture in the combustion chamber independent of the spark plug firing

When the mass airflow sensor malfunctions it tends to cause the PCM to decrease the air / fuel mixture which may...

The noise you may be hearing is a pre ignition ping caused by a combination of a lean fuel to air mixture and advanced ignition timing.

Reduced engine power is commonly caused by fuel flow restriction issues or fuel / air mixture problems.

But the heat of the engine and the compression of the fuel and air can cause «pre-ignition,» the ignition of the mixture without a spark at all.