What Replaced A Choke On A Galaxy

[shelbournes]

Might sound a stupid question

But what sort of thing would have replace a choke on

a new car

ie..

what type of sensor

how does this differ from a choke car

sorry for the vague question

but this may help me with the quest to sort my car out

 

regards ..mark

[seatkid]

fuelling is controlled by the ECU (Electronic control unit) sometimes called PCM (Powertrain Control Module) i.e. the computer. It takes information from several sensors, air/water temperature, air mass (MAF), lambda (O2) sensor etc etc etc. and decides how rich or lean the mixture should be. Cold starts are more than just about running rich, they have to warm up the catalytic converter etc, and minimise emissions. In other words, its blooming complicated.......and lots of scope for faults. There is no "choke plate" on modern cars...