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back firing bad plz help 

 

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 Post subject: back firing bad plz help
Posted: Thu Apr 21, 2011 7:03 pm 
Smokin em up
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Ride: ba mk2 xr8

Location: nyngan
NSW, Australia

hi guys i converted my ef fairmont from auto to manuel
ran perfect for like 2 days now when i go to start it it makes a noise
like it has a short and wont start and when i tow start it it does start
but runs rugh as guts and back fires that bad that big long flames
come out the exhaust anyone know whats goin on and how i can fix it
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 Post subject: Re: back firing bad plz help
Posted: Fri Apr 22, 2011 8:50 am 
Getting Side Ways
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Ride: BF XR6,

Location: NEWCASTLE
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Timings out Badly? Umm have you put an el manual computer in accidently instead of ef? I dont know what effect the wrong computer would have if it even fits the same plug

 

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 Post subject: Re: back firing bad plz help
Posted: Fri Apr 22, 2011 10:53 pm 
Parts Gopher
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Location: radelaide
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valvetrain timing
oxygen sensor
????????????????

 

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 Post subject: Re: back firing bad plz help
Posted: Fri Apr 22, 2011 11:17 pm 
Getting Side Ways
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sounds like timins out badly. its firing when the exhaust port is open.

 

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 Post subject: Re: back firing bad plz help
Posted: Sat Apr 23, 2011 10:37 am 
Smokin em up
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Age: 30

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Joined: 18th Apr 2009

Ride: ba mk2 xr8

Location: nyngan
NSW, Australia

how would the timing be out i only put a manuel in it and dident touch any thing else i tryed to get a comp out of an el i have for parts but the plugs are different where is that 02 sencer at i will change that
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 Post subject: Re: back firing bad plz help
Posted: Sat Apr 23, 2011 12:01 pm 
Getting Side Ways
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Location: FNQ
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Check that the dizzy hasn't come loose - or that the cap hasn't come unclipped etc.

I bought a secondhand panel van many years ago - it was serviced before I picked it up. It ran fine for a week and then did exactly what you're describing. A guy at work said to look at the dizzy - I poo poo'ed him - couldn't be that it's just been serviced. The freakin dizzy was loose.

 

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 Post subject: Re: back firing bad plz help
Posted: Sat Apr 23, 2011 12:13 pm 
Smokin em up
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Age: 30

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Joined: 18th Apr 2009

Ride: ba mk2 xr8

Location: nyngan
NSW, Australia

yeah i had a look but it doesent have a dizzy when i turn the key on the smart lock starts tiking
so i pulled all the fuses out left it a bit and put them back in turned the kea again and it sounded normal then when i pushed my start button again it just made a small bizzing sound then a small click then nothen
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 Post subject: Re: back firing bad plz help
Posted: Sat Apr 23, 2011 12:27 pm 
Getting Side Ways
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Location: FNQ
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Sorry! - missed the fact you have EF.

It does sound like haywire ignition tho... and Ugh! wierd electrical behaviours - I'm afraid I can't offer anything to help - good luck!

 

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