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Fuse Box Under Bonnet


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#1 djbaba

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Posted 13 July 2012 - 07:54 PM

hi i went away monday and done all my checks on the focus like all fuses ect and come across this odd looking thing in the fuse box now i moved it to have a good look at it but anyways i then closed everything up and packet the car for my hols i started the car and no errors or anything so as i went to pull away i had no accelatration and stalled so i put my foot back on the pedal and nothing so i opens the bonnent nd got the missus to put her foot on the accel pedal as i moved the od looking wire nd we have lift off now as i got to scotch corner i lost all power and got a dtc error so i check it and it is U0100 mass air flow sensor malfuntion now am stumped and have no idea if tht could be causing the error or if its somthing els

sorry about spelling

thanks Ali

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#2 djbaba

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Posted 13 July 2012 - 08:18 PM

anyone!!!!

#3 artscot79

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Posted 13 July 2012 - 08:33 PM

i have no idea what it is but it shouldnt be there someones been seriously messing with the loom

#4 djbaba

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Posted 13 July 2012 - 08:36 PM

yup a guessed tht when a took the cover off on monday wish i didnt now but i have no idea what it is

#5 Lenny

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Posted 13 July 2012 - 08:46 PM

looks like someone fitted some sort of power boost electronic box to the car at some stage to trick the sensors in to thinking it was colder than it actually is, this gives the car more power and may have come with a T piece like the drake box's you can buy on ebay so the fitting would have filtered the connection that they have fitted,

i reckon if you remove the connector and hard wire them back togeather you should be as good as standard again mate.

#6 djbaba

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Posted 13 July 2012 - 08:54 PM

thanks lenny so tht could be why its giving me a dtc U0100 hmmm if i solder them and tape them up it should all be ok as a was getting very worryed tht something was really wrong with the car nd as soon as i took the cover off a knew it wasnt meant to be there. thanks lenny :D:D:D

#7 Lenny

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Posted 13 July 2012 - 09:05 PM

thanks lenny so tht could be why its giving me a dtc U0100 hmmm if i solder them and tape them up it should all be ok as a was getting very worryed tht something was really wrong with the car nd as soon as i took the cover off a knew it wasnt meant to be there. thanks lenny :D:D:D


no prob mate,
to further back up my theroy here is a link to they type of box that must have been fitted to filter the air readings,
the previous owner was spot on though to take the time fitting some moulded connectors to plug it in and out easily
http://www.ebay.com/...fb9fa67&vxp=mtr

#8 djbaba

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Posted 13 July 2012 - 09:22 PM

thank you lenny a think you might have solved it thank you

#9 Lenny

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Posted 13 July 2012 - 09:28 PM

thank you lenny a think you might have solved it thank you


no problem sir Posted Image
i would trace that additional red cable that leeds out of the fuse box and see wher it is going before i would include it on the new connection though because it doesnt run inside the factory loom of cables i would trace it to see if it is required.

#10 djbaba

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Posted 13 July 2012 - 09:33 PM

which one left or right nd the 2 green wires connect to the 2 reds like all in one (not green,red green,red) there all in one if tht makes any sence

#11 Lenny

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Posted 13 July 2012 - 09:36 PM

which one left or right nd the 2 green wires connect to the 2 reds like all in one (not green,red green,red) there all in one if tht makes any sence


the red one that goes left and under the rubber trunking mate,
look and see where it leeds to before you hot wire it all up.
will be fine though dont worry.

#12 djbaba

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Posted 13 July 2012 - 09:39 PM

yeh al have a look in the morning and have a look to see were it goes a might find it does something magical lol

#13 djbaba

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Posted 13 July 2012 - 09:53 PM

lenny av had a thought would it be ok to remover the /disconect from the fuse box to have a good look at it or is there more to it

#14 Lenny

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Posted 14 July 2012 - 06:35 AM

lenny av had a thought would it be ok to remover the /disconect from the fuse box to have a good look at it or is there more to it


yes mate,
ive unplugged the connector to the centre of the engine bay fuse box when fitting the drls because i removed the battery box to fit the moduiles to the rear of it.
but make sure you have your stereo code before you unplug it,
and
disconnect the live feed from the battery before you unplug it too.

its easy to remove jus lift up the blue flap to release the catch and unplug it,

#15 djbaba

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Posted 14 July 2012 - 10:14 AM

hi i have had a look the day and the wire goes to a senor a think but it was tucked bhind the radiator and under the air box so am very confused now and it is also connected to the fan wires :PIMAG2038.jpg

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