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Au 1, not firing cyl 1. Has spark and changed injector 

 

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Au99forte
 Post subject: Au 1, not firing cyl 1. Has spark and changed injector
Posted: Sat Aug 02, 2014 2:21 pm 
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Howdy I have a series one au that number 1 cylinder makes no change when removed. Replaced leads and has ok plugs. Even if it was a vacuum leak wouldn't it still make some difference when the leads takin off or does a leak stop the cylinder firing? Any ideas would be much appreciated,
Cheers Richard.
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SWC
 Post subject: Re: Au 1, not firing cyl 1. Has spark and changed injector
Posted: Sat Aug 02, 2014 2:46 pm 
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Swap No6 with No1. Both fire at the same time with the AU. See what happens then.

Have you got spark on No1 & No6? If not the the coil pack has failed.

Has No1 Injector failed? Does No1 Get fuel?
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racer
 Post subject: Re: Au 1, not firing cyl 1. Has spark and changed injector
Posted: Sat Aug 02, 2014 2:51 pm 
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Power: 146 rwkw

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Common issue is coil packs. But i would do a compression test first. If that's ok then i would change coil pack with new plugs. It might have spark but it might be a weak spark.

 

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FORD EL 4.0L. Crow cam, T.I Performance J3 Chip, Vernier cam gear, SPR ported head, 68mm TB, AU head gasket + ARP studs, AU injectors, Pacey 4480, High flow cat, Shift kit, Stallie, 3:73 TrueTrac.
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Au99forte
 Post subject: Re: Au 1, not firing cyl 1. Has spark and changed injector
Posted: Sat Aug 02, 2014 3:12 pm 
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Yeah no 6 has spark and no1's spark seems as strong as others. There's fuel and I even swapped injector.. I have a new coil pack on the way just invade it's that
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Au99forte
 Post subject: Re: Au 1, not firing cyl 1. Has spark and changed injector
Posted: Tue Aug 05, 2014 3:57 pm 
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Have done compression test, changed coil pack still no luck. No 6 seems to be firing a lot harder than the rest
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Au99forte
 Post subject: Re: Au 1, not firing cyl 1. Has spark and changed injector
Posted: Tue Aug 05, 2014 4:04 pm 
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Have done compression test, changed coil pack still no luck. No 6 seems to be firing a lot harder than the rest
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Au99forte
 Post subject: Re: Au 1, not firing cyl 1. Has spark and changed injector
Posted: Tue Aug 05, 2014 4:45 pm 
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Have also swapped computer over
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