kcossie

hello i,ve just joined the site.i have a escort cosworth rep with a 1600 fiesta rs turbo engine.it takes about 10 minutes of cranking the engine until it will start.its like its a cold start valve problem i cant locate it on the engine.i have spark the its a new fuel pump new injectors.i bought the car with this problem.theres a high lift cam and bigger turbo and dump valve would this matter could the timing be out.when it does start is fine no miss fire or anything.could anyone help me its driving me mad thanks

Rs1

iTrader: (1)

They dont have a dedicated cold star injector like the 3i's......so for cost and ease of removal/refit i'd try a thermotime switch first. If its no better your probably looking at poor metering unit setup.

kcossie

well thanks need a bit more help where is that sensor on the engine

Rs1

iTrader: (1)

iirc it is in the middle of the inlet manifold, 2 pin.....blue.
Ages since i looked at an rst mind,lol.

davidreader5

Hi,

The fiesta turbo, doesent have a thermo time switch as to control the cold start injector, for the old Ke injection system of the escort RST, so also the fiesta doesent have a metering unit,

I would go for the easy option first of checking out the CTS, (coolant temp sensor) the sensor that tells the ecu the engine temp for fuelling, also check the map sensor function and output, and fuel pressure, i assume you are running the fiesta turbo engine management eecIV.
Regards Dave R.

kcossie

ok thanks last question before i try it out wheres the metering unit

kcossie

i dont know wat its running on ill find out

davidreader5

It may explain why you cant find certain sensors, if you have a metering unit, A device on the lower inner wing of the passenger side when looking into the engine bay, has lots of red plastic piping coming from it, leading to the inlet manifold to injectors, This would mean it has the KE injection system off a Escort RST,.

If your injectors have a electrical connector on them it is more than likely to be eecIV engine managment other than this, maybe someone has put after market management on the car such as omex!

Regards Dave R.

kcossie

it doesnt have a metering sensor ill try the coolant temp sensor but theres a sensor to the right of the throttle body on the intake manifold its like a air temp sensor or charge air pressure sensor wat is it and would it cause a problem