im on with my car at mo trying to sort the fucker out.its been acting up as it fires first time,but as soon as it warms up if you turn it off it wont start back up for ages. its been left out on the drive for a few weeks now as i couldnt be arsed with it,so idecided to fire it up today and its just turning so i took the lead off on cylinder no1 and there's no spark.but when you turn the ignition on there is one spark and that is it.it has recently had a brand new phase sensor(im not sure if it is gapped perfectly).i have changed the crank sensor, it wasn't brand new but it was in better condition than the old one.any ideas or help appreciated as im getting pissed off cheers

 

almost certainly one of those two sensors.

buy Stu's new RP Labs software and you can see which one

 

could it be wiring?

 

ANYTHING could be wiring on a 20 year old cossie loom, but as thats not changed, it seems less likely than the sensors that have changed since it was last working. (although moving the wires to change the sensors can of course finnish off an already bad connection!)

 

could be ur coil ?

 

since i have owned the car just over a year ago it has always done it.it only used to do it once in a blue moon but now its every time its warm and today it wont start at all

 

its had a new coil mate

 

Given that its been intermittant and you have changed sensors since, that wiring is sounding more suspect all the time!

 

any ideas as where to start looking or prices of looms!

 

or if it aint wireing could bethe coil driver in the ecu can get another ecu to try ?

 

map sensor/phase/cps are where i would look


but then there aint many sensors left after that

 

its had another ecu lol

 

try another car then

 

well then here u go , multimeter and check continuity thruogh the hole loom

but if you require a new loom contact ryan off here i think it would be around Ł350 and a nice loom by all accounts

 

do you want to swap then??

 

FPMSL

 

i havnt a clue with electrics hence why its the only thing unchanged.

 

my car aint started for 18 months mate,,,,,,,,,,, so cant see how that would help


what about the ignition amp could that do it


list all the sensors you have tried and go from there

 

True could be getting hot then failing

 

right the list:
crank sensor-
phase
ign amp
water temp sensor (blue)
ecu
coil
leads
plugs
dizzy cap
rotor arm
map
have all been changed

 

i think thats what was wrong with my cossie but i had a different problem to him


min was missing and cutting out when changing gear then coming back to life unless i drove gentle


my solution was to fit a new engine, all new sensors, new wiring loom ,,,,,,,,,,,,,


oh and a dizzyless secs ecu so ive replaced any posible part and now it shoulds start


also fitted a new fuel pump too and im gonan redo that wiring

 

loom then id say theres fuck all else

 

does the fuel pump prime when cranking?

 

how difficult is it fitting a new loom then?

 

how is your imobiliser wired in,,,,,,,,,,, cause thats all else i can think off


there is a battery on the car yeah

 

battery is that where the red lead goes................




























lol lol

 

when i bought the car the lad said that one morning he went to start it and it wouldnt start so he called the auto electrician who took out loads of old alarms and shit which didnt need to be there and fitted a new alarm and immobiliser. I'v just answerd my own post.it Has got to be that loom

 

loom is piss easy on a cossie mate, its all 1 part with a multi plug that has 4 wires on it

i can even tell ya where they go too,,,,,,, 1 is tacho, 1 is water temp, one is switched live the last one is main live

the loom is earthed via the plenum for some reason ( which i find strange tbh )


ive removed and fitted a cossie loom whilst my microwave meal was cooking

 

Wiring loom sounds suspect here mate.

Disconnect from ECU end and then plug back in again. Try also unplugging the plug that goes to dizzy and then plug back in again

 

b19bal
jaycos
chip-3door
A BIG THANKS TO ALL OF YOU'S for your help,virtual pints all round chaps

 

i'll try that mate

 

should i buy the full loom or look for a engine loom.can this be done??

 

I had exactly trhe same problem. 1st time i changed map sensor and it started, then i changed phase sensor and it started. Then after a week of okishness it cut out whilst driving. So i got a new wiring loom on it and the problem styaed away

 

should i be looking for something like this
or just the engine loom?? http://cgi.ebay.co.uk/Ford-Sierra-Sa...QQcmdZViewItem

 

engine loom mate,,,,,,,,,, its self contained and plugs in with a multi plug


the rest of the loom is a sierra ghia loom anyway so thres a hint for ya if you write your cossie off

 

cossiegreg1

Greg you just need an engine loom. PM Ryan on here to find out prices.

 

thanks guys appreciate it

 

hey greg, dont buy a loom just yet have a look at my posts and go through the wiring on the ecu there is a full check list. its dead easy or even better get hold ov an led tester and plug it in to the ecu they more or less point you to the right directin.

what i done was check that you are getting power to your ecu, if you are then now check you are getting an ac voltage back to you ecu from your crank and phase sensor, just cos your not getting a spark it doesnt mean its the sensor,

unplug the ecu loom and unplug the phase an crank sensor, if you have a metre check that these wires are not broke,. i will put my house on it that its a bad earth dis connect all the engine earths and clean them up.

check from batt earth to ecu pin 1 i think that there is a good 10 ohms if its less then the cable is damaged or a faulty connection..

pm me ur number if you want...am better talkin lol