Stop start driving causes fuel injectors to block or partially block.various in tanl cleaners are out there but the only method is removal and untrasonic cleaning
be wary of the fine detail of a vehicles warranty. X number of years or whatever miles really means nothing.If you do have a failure outside the period then its a question of customer is right or a gesture of goodwill on the part of the company to sort it out
simple in many ways an engine thats well maintained and not thrashed
or laboured made to pull high gears at low speed
Throwing parts at an engine running issue will when the cause isnt found lead to engine out and it dismantled without the knowledge of what is wrong its a futile exercise
a lot of myths have started to appear among motorists about running a car.
The most common is the idea of a clearing codes and it magically making the fault disappear no its a big myth achieves nothing.
Cheap code readers can now be bought from argos about 20 pounds or so good if you put the effort in to fixing the issue but nothing toward it if you just clear the codes,the fault will be straight back if you font deal with the cause not the symptom
Like any modern engine sensor mafs are not the cheap[est they go wrong of course but calling a new one as got to be the result of a lot of testing and diagnostics
In the case of a misfire using secondary ignition waveform gives us a rapid assessment of whether the cause is ignition related ie spark plus plug lead or COP.
This technique is an old method that get around or uses the ECU misfire detection system it aids it in other words. Of course an oscilloscope capable of measuring these events with enough samples and the knowledge to use it,a very powerful tool in the diagnostics arsenal
Lunar auto diagnostics