car wont run tick over or rev up

[clio 480 turbo]

i have a clio running a 480 turbo lump all of a sudden the car wont idle or rev up it will start then just die, if you try and rev it i will rev once then cut out, its getting good fuel and spark car has a new uprated fuel pump so no problems there as its been running mint for ages,
been told it might be crank shaft sensor, any one confirm
thanks

[Iroll480]

How's the fuelfilter, did you replace it when you changed the fuelpump?

[clio 480 turbo]

yes replaced it with the new one, its not a fueling problem it gets good fuel might be some sort of air leak

[clio 480 turbo]

could it be the crank sensor are they common for failing

[Iroll480]

They do go, you can measure the resistance on the connector. It has a brown and a yellow wire. Resistance should be between 160-280 ohm. If resistance is ok, take it out and clean the tip of the sensor with contactspray and a toothbrush. Another option could be the coil, those can work intermittant. They are known to quit working when getting warm/hot.

[clio 480 turbo]

mine is the three pin connector are the wires the same colour

[Iroll480]

Don't know of a 3 pin connector, as far as I know they only come with a 2 pin connector. Sure you have the right connector?

[glasgowjim]

as I quoted in 480 clio's other thread


Re: ECU AND FLY WHEEL OPTIONS SERIOUS HELP NEEDED PLEASE !
by outlawmorga » Sat Jan 23, 2010 7:26 pm

simple as this... the older engines usually running with a black coloured intake manifold will run a different crank sensor which means different wiring loom which means different ecu's. For example i have a 1993 engine with silver inlet with 215mm plate running blue ecu's with a 'two' pin crank sensor... this only allows me to run the later ecu's. Some of the older engines have 3 pins on the crank sensor and will only run 200mm plate with older orange ecu's i don't know where all these other colours go, as in which flywheel size they run all i know is you can only run a later flywheel with a later ecu
Renault Clio Running B18FT with rich mod, fse boost pressure valve, n/a camshaft taken from clio RSi and bleed tap
outlawmorga
480 Newbie

[Iroll480]

Thanx for the lesson james!

[clio 480 turbo]

after further inspection i found out mine is a 2 pin connector

[glasgowjim]

can supply a second hand crank position sensor if needed

[clio 480 turbo]

found out the sensor is ok , i think its the injectors now its getting a good spark ,no air leaks fuel to the injector rail the injector loom has power no no fuel getting into the engine can anybody confirm this

[Sieger]

does it run on brake cleaner? i had ones the same problem, turned out to be the 2 relais at the end of the loom, they were all brown of corrosion.

[clio 480 turbo]

i tried spraying deodorant in the engine but would not run still

[bkf_uk]

Check your MAF sensor if that is up the swany the car will not run, it wont idle and will die even quicker if you attempt to rev it! to check if the injectors are ok remove them from the inlet and have them wired in then cranck the engine over to see if they spray! thats the quickest way i can think of for checking they work.

[clio 480 turbo]

have tried that with the 315cc injectors but when i crank the engine 1 or 2 injectors will pop out the rail and fuel goes all over

[clio 480 turbo]

help still needed , i have tried a different fuel ecu and maf sensor still no joy the crank sensor is ok the two relays on the loom are working, well i can hear them click when i crank the engine, no air leaks , good spark , fuel getting to the rail injector loom has power tested with a side light bulb still no start, i have tried putting petrol in the engine still no start. the only thing u have not tried is different injectors but surely if the injectors where broke it still should have run when i put the petrol in the engine.

[Iroll480]

Did you already check the MAF?

[clio 480 turbo]

yes i have 3 spares and tried them all and still wont start

[Sieger]

do you have the correct loom with the engine?

200mm clutch, 3 wires from TDC-sensor

225mm clutch, 2 wires