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No Power to the ECU--Help

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Old Jul 27, 2004 | 05:42 PM
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Default No Power to the ECU--Help

Right, the car wont start but it will turn over.
No dashboard lights, indicators, windows etc etc

Spoke to Matt on the phone and he said check the power to the ECU

I have no power to the ECU

Was driving along fine, flashed the headlights and now nothing

Where do i look, all the fuses under the bonnet are fine?
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Old Jul 27, 2004 | 05:43 PM
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check the main relay under the glove box as said last night m8
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Old Jul 27, 2004 | 05:45 PM
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I swapped all the relays in turn for one i know works and still nothing???

Is there anyway to check a relay???
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Old Jul 27, 2004 | 05:46 PM
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not that i know of

ok unplug the main relay, and find the 2 thickest wires on the plug (the bit on your other hand, lol)

now bridge them out (so no relay is used) and see if that makes any difference
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Old Jul 27, 2004 | 05:47 PM
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oh

repaeat same again on the fuel pump relay aswell
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Old Jul 27, 2004 | 05:47 PM
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How do i know which is the main relay (Im shit with electrics )
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Old Jul 27, 2004 | 05:48 PM
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there are 2 yellow ones, main relay has no fuse on the same feed, the fuel pump has a fuse next to it..

also if that don't work

check the phase and crank sensors
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Old Jul 27, 2004 | 06:01 PM
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These relays are connected to the loom i take it
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Old Jul 27, 2004 | 06:01 PM
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YUP
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Old Jul 27, 2004 | 06:02 PM
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check your grounds
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Old Jul 27, 2004 | 06:40 PM
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This happened on my car I know it is VERY different to a degree, was driving along flashed headlights to let someone across, I lost all cabin electrics, radio dash lights, also found all exterior lihts were shot no indicators either or brake lights... car still drove though... turned out to be my fusebox, which is obviously a common problem on escorts, and easily removed to inspect, dunno about yours though Im afraid
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Old Jul 27, 2004 | 07:15 PM
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Tiff,

If you have no ignition lights I.E no ignition feed then your ECU will have no power.....you need to find why there is not ignition feed to anything....
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Old Jul 27, 2004 | 07:33 PM
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TIFF-C20WTH,
Right, the car wont start but it will turn over.
No dashboard lights, indicators, windows etc etc

if you aint got all of them then the problem is way before the ignition relay m8 , all the ignition relay is for is the power side of the engine , not for the wipers and indicators etc etc , you need to look at main supply to the fuse box and or ignition switch , even though the car turns over , this may suggest that the 3rd sector of the ign switch works and also the power in from the battery but says nothing about accesory (pos 1 ) and ign on (pos 2) time to get the test light out and remove a few covers and cowls !!

good luck !!

if i were a bit close id have a look for ya !!
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Old Jul 27, 2004 | 07:41 PM
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How do i know which is the main relay (Im shit with electrics )

If your crap with electrics and are not confident with what your doing get an auto electrician to look at it.
The price he would charge is minimal compared to the damage you can do linking things out at random.

stu (systems technician P+C)
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Old Jul 27, 2004 | 09:07 PM
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Good advice there Stu.

Did you consider it may be an immobiliser on the blink?

Neil.
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Old Jul 27, 2004 | 09:30 PM
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Tiff?
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Old Jul 27, 2004 | 09:35 PM
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i had similar thing few weeks back, flashed the lights and the whole thing cut out, turned out to be one of the wires goin to the pos on the battery, stripped it down, new connecter and good as new. well it was the engine blew up
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Old Jul 27, 2004 | 09:40 PM
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markk
Thanks for the offer mate

All sorted now thanks to Shings

He came over and we tested most of the things that need testing.
Took the steering cowl off and he had a good route about and spotted a Pink wire had broke off a Fuse connector Reconnected and taped it up and now she is running fine

Left it running and gave everywhere a good shake of the loom etc and all was fine

So BIG BIG thanks to Jake for helping me out Cheers Buddy
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Old Jul 27, 2004 | 10:10 PM
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Sounds like someone has been playing around with your loom.....
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Old Jul 27, 2004 | 10:12 PM
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Pink wire???
That'll be the one for your vanity mirror in your sun visor you big poof :gayflag:
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Old Jul 27, 2004 | 10:13 PM
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now go remove the tape, split the wire again, and solder it you bodging bast !!!
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Old Jul 27, 2004 | 10:14 PM
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some fucking sparrows if u ask me
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Old Jul 27, 2004 | 10:14 PM
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#Spadge pops outside and makes sure he doesnt have a pink wire aswell#
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Old Jul 27, 2004 | 10:15 PM
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Matt- its allright theres a fuse holder and the wire had removed its self from the end of this. Recrimped and back on. Tape just for 100% good mesure to stop it going anywhere again.

J
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Old Jul 27, 2004 | 10:17 PM
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okydoky then mr techy
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Old Jul 27, 2004 | 10:18 PM
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Still a fooking bodge!
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Old Jul 27, 2004 | 10:20 PM
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Originally Posted by Shings
Matt- its allright theres a fuse holder and the wire had removed its self from the end of this. Recrimped and back on. Tape just for 100% good mesure to stop it going anywhere again.

J

I wonder what thats for then? No pink wires under my dash that i recall Must be something to do with an immob or something!
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Old Jul 27, 2004 | 10:21 PM
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Daz I'll bodge my wire cutters in ya eye if you suggest I am a shody bodge merchant again!
(just because I attached my last radiator to the front of my car with cable ties)

J
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Old Jul 27, 2004 | 10:22 PM
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If it was then Tiff has a GAY imobiliser
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Old Jul 27, 2004 | 10:23 PM
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Spadge

Really dont know what it was for but it now runs again
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Old Jul 27, 2004 | 10:24 PM
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Originally Posted by TIFF-C20WTH
Spadge

Really dont know what it was for but it now runs again

Cool mate and well done Jake
I didn't need to look btw as i know every single wire in my fookin car
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Old Jul 27, 2004 | 10:24 PM
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LOL! Bodge!

Prehaps it was the feed for the ignition Tiff?
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Old Jul 27, 2004 | 10:25 PM
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Originally Posted by Shings
I attached my last radiator to the front of my car with cable ties
and tiff rang you for help i reckon he needs more help than just with his car then ROFLOL
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Old Jul 27, 2004 | 10:32 PM
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Originally Posted by Matt
Originally Posted by Shings
I attached my last radiator to the front of my car with cable ties
and tiff rang you for help i reckon he needs more help than just with his car then ROFLOL


What help was you then big boy

"If you have no power to the ECU then i having got a fucking clue as i have a Dingy loom"
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Old Jul 27, 2004 | 10:34 PM
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Originally Posted by SPADGE
I didn't need to look btw as i know every single wire in my fookin car
Spadge

The funny thing is though you are not joking mate
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Old Jul 27, 2004 | 10:37 PM
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[quote="TIFF-C20WTH
What help was you then big boy

"If you have no power to the ECU then i having got a fucking clue as i have a Dingy loom" [/quote]

Then GET one then.You know you wanna.
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Old Jul 28, 2004 | 07:19 AM
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Originally Posted by TIFF-C20WTH
Originally Posted by Matt
Originally Posted by Shings
I attached my last radiator to the front of my car with cable ties
and tiff rang you for help i reckon he needs more help than just with his car then ROFLOL


What help was you then big boy

"If you have no power to the ECU then i having got a fucking clue as i have a Dingy loom"
read as

"if you have no voltage reading from pin 1 and 20 then you need someone who hasnt got a modified loom cos i cant compare mine"
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