Steve F

Hi,
Has anyone got any suggestions to why a fiesta rs turbo wont start,is turning over but wont fire.

The plugs are soaking when taking them out.

The cars ment to be standard bar a chip 'unknown'

Sorry thats all the details i have of the car

Any pointers what to start looking for 1st

thanks

martysmartie

iTrader: (1)

Spark, clearly the input it needs to do so is ok as you have fuel thus the fuel pump is working, check the coil pack connections and check for spark at the HT leads.

Martin

chaffe

unusual this system is usualy really good. the coil pack will give a good strong spark under normal circumstances. it may be the map sensor or the aformentioned "chip"

JonathanJ

when cranking does the rev counter move , if not then could be the crank position sensor or its wiring that is the cause , had it myself .

If you are still running the blue injectors try removing the chip as it should start without chip as long as Beige injectors not fitted , if it has beige injectors then it could be a bit more involved .

Give us as much info as possible and we will try to help .

Matt Lewis

iTrader: (2)

Check the fuel pressure reg

martysmartie

iTrader: (1)

If it were CPS then the fuel pump would not run

Martin

JonathanJ

Mine Fuel pump still primed Marty , just no rev counter , so with fuel in rail from prime but no spark the plugs get wet , and then everytime the key is reset it will re prime

martysmartie

iTrader: (1)

Fair enough, normally CPS input is required for the pump to prime.

Martin

JonathanJ

I am going to dis connect my cps and check , since I had the problem have swapped from OFAC to OFAB , would think same logic on this between the 2

herbcosworth

brokenwire to coil or ecu not plugged in correctly,

chaffe

ecu will automatically give a five second prime pulse when you key on regardless of any tach input from the edis module. If it has spark then that proves the CPS works, the edis module is ok and the wiring on that system is ok. Does it smell of fuel from ehxaust? Does the pump continue to run when cranking? does the tach pulse minutly when cranking? does it pop or bang at all?

martysmartie

iTrader: (1)

Oh rite thanks, every days a school day ey, I only say because I only know the Weber management which won't prime without CPS input, I don't know EEC intimately I must say.

With that info then check the CPS as said.

Martin