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engine mystery ? help

Any problems with your Altezza, post questions here
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DJ_FROSTY
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engine mystery ? help

Postby DJ_FROSTY » Tue Sep 17, 2013 3:15 pm

please can some one help the car has a bad misfire ive changed the pugs tested the coilpacks pressure tested the cylinders and checked the injectors its missing in 1 then 3 cylinders has this happend to any one ? please need help :idea:

Soiled
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Re: engine mystery ? help

Postby Soiled » Tue Sep 17, 2013 3:26 pm

Have you cleaned your MAF?

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DJ_FROSTY
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Re: engine mystery ? help

Postby DJ_FROSTY » Tue Sep 17, 2013 4:03 pm

ive had it replaced about 2 years ago havent cleaned it would it cause the car to fire on different cylinders ?

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tomo
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Re: engine mystery ? help

Postby tomo » Tue Sep 17, 2013 5:09 pm

Check manifold for air leaks, possibly around injector seals, if not injectors maybe?
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townie
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Re: engine mystery ? help

Postby townie » Tue Sep 17, 2013 6:30 pm

check throttle body sensor could be giving off wrong signal ecu also coolant sensor switch
faulty ecu is confused does yr car have a map sensor?

Soiled
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Re: engine mystery ? help

Postby Soiled » Tue Sep 17, 2013 6:42 pm

DJ_FROSTY wrote:ive had it replaced about 2 years ago havent cleaned it would it cause the car to fire on different cylinders ?


A dirty MAF causes alot of problems, and it's 5 min to do so worth giving it a go before getting into harder things.

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rnd_audio
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Re: engine mystery ? help

Postby rnd_audio » Tue Sep 17, 2013 10:40 pm

Check valve clearence if all else fails :)
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Tyres are evil and must be punished :)

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davehayes
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Re: engine mystery ? help

Postby davehayes » Thu Sep 19, 2013 12:24 pm

Might be worth checking crankshaft sensor cable that goes down beside timing belt cover see if its damaged!seen it happen before send the wrong signal back up for spark

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DJ_FROSTY
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Re: engine mystery ? help

Postby DJ_FROSTY » Fri Sep 20, 2013 1:36 pm

its looking like a crank or cam sensor prob might even be ecu any one know if the ecu can be swapped over with out a key ? and were to get a hold of the sensors any help would be great :D

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rnd_audio
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Re: engine mystery ? help

Postby rnd_audio » Fri Sep 20, 2013 10:45 pm

Yep no prob swapping out ecu s. And there is a spare engine there will all sensors on it. Never heard of a ecu going thou. But there is always a first. Im located in kildare
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Tyres are evil and must be punished :)

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DJ_FROSTY
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Re: engine mystery ? help

Postby DJ_FROSTY » Sat Sep 21, 2013 10:12 am

thanks a million rnd_audio lad il find out today hopefully my number is 0864021534 can you text me with prices for the sensors and ecu thanks lad :)


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