Questions & Answers for: mixture problem and some example - Page 9

...example of a problem that generates a soft code is an overly rich fuel mixture that can be caused by a slightly malfunctioning smog device. Another example is a slightly sticking EGR valve or an EGR ...

...widths (Colder coolant temperatures result in longer injector pulse widths and richer air-fuel mixtures). Compensates for fuel condensation in intake manifold. Controls engine warm-up idle

example). When misfire occurs, performance suffers along with fuel economy, emissions and idle quality. And, when a misfiring vehicle is subjected to an emissions test, it will usually fail because of

...that the coils are much easier to test than the carbys are to remove,strip,clean,re-fit,adjust mixtures & syncronize,I suggest you start there. (see my tip on how to test motorcycle twin ...

mixture of fuel to air. A lot of other things can cause an engine to "miss" which causes the engine to vibrate. A perfectly good running engine can vibrate if you have a broken motor mount for example

...is on. Don't know if they can clear them for you. Misfires, bad oxygen sensors, lean/rich fuel mixture are just a few examples of what can turn that light

example, if the water temperature sensor is inaccurate but reporting a temperature that is within its typical range, the computer will see no problem with the temperature sensor but may instead report

example, use 1 cup of vinegar and 1 cup of water. Pour the solution into the water tank of your steamer. Run the Steamer: Plug in the steamer and turn it on. Allow the vinegar-water mixture to heat up

...mixture may be wrong. Does the fuel injector pulse, putting gas into the cylinder? Possibly you may have a leaking injector or a clogged injector.

If gas and spark seem okay, you need to check ...

...example P0171) then the O2 may have been doing it's job and the engine really is running lean from other reasons -- like a vacuum leak or poor air fuel mixture. If it had a code P0172 = that is code ...