FORD KA

That means that your idle is set too low and the alternator cant turn fast enough to produce the required voltage and amperage needed to keep the engine running. The oil light coming sounds like it is being caused by the same thing, either that or the engine is worn enough so that at low rpms, the oil pump cant pump enough oil to keep the pressure above 4-5psi in the oil gallery.

I recommend adjusting the idle (if you can) to a higher idle.

Where did you purchase this car? I see 30mph, meaning US standard, but have never heard of the KA model in the US, it sounds foreign. Is that another name for a different model?

Ford Tech

Ok after looking it up, this car is European in nature and not a US car. So what ENGINE are we talking about here, MILEAGE on this car, and what YEAR.. Need more input..

I have to say it sounds like an IAC valve. Does it do it when you are stopping or just slowing down below 30mph? Will it do it if you dont take your foot completely off the accelorator pedal?

Keep in mind most people who post in this forum are American or Canadian, and as such, you have vehicles over there that most of us only hear bits and pieces about, but never seen.. LOL

I did see there are two engine sizes available in the new KA, but again I dont know what year your KA is, or even what the odometer is reading.

You can post in metric, most of us can do the conversion (if needed) since Ford makes Canadian cars as well and they are all metric.

Ford Tech

I don't think the idle can be adjusted because it is controlled by the electronic fuel injection.

However, with one of my previous (fuel injected) cars I also had a problem with low idle speed. It turned out to be a filthy actuator that controls the throttle valve on idle. If it gets filthy it can't control the throttle quickly enough, causing the engine to die when the revs drop to fast.

You may also experience a fluctuating idle speed, but you may not have noticed that because only some Ka's have a rev-counter.

Usually cleaning the actuator does the trick, otherwise it must be replaced.

It's a european model (they still use mph in the UK). See

The Ford KA is sold in Asia, Europe and Latin America and built in Spain (with production changed to Poland) and Brasil. It is a small car similar to the Peugeot 107 and Toyota Aygo. The class of car that these are in is smaller than anything sold in the US and is called a city car. They are intended to be driven around a city and not on the highway (hence the class name).

I think they are sold in Mexico, which might be a source of the car in the US, although it is not built to US safety standards.

Jeff

Also what country are you in and, where was the car built (if you know)? There appear to be some differences between the European- and Latin-American-built cars.

Jeff

You are right, it is fuel injected and therefore the idle is controlled solely by the computer. The computer will adjust the IAC and injectors to control the air:fuel ratio in the cylinders. So it looks like it might be the IAC giving your problems.

I wasnt aware of that.. HMM, interesting. Thanks for the info.

Ford Tech