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06-08-2007, 08:40 PM
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Smile
Join Date: Dec 2004
Location: Merrylands Sydney
Posts: 8,541
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I was plagued with an intermittent misfire for the past 3 months.the cars power is great.The problem have been fighting with is a stumble or misfire off idle when accelerating from a stopped position . I had a very strong feeling it was fuel. I had emptied the tank,cleaned it.Changed the fuel pump,changed the injectors,changed 2 fuel filters,cleaned the injectors,replaced tps,ego,isc,coilpack,leads,plugs ,checked cat,checked fuel pressures while driving.
It was getting very dangerous.Tonight I turned the pressures right up on my big injectors and voila not only is the hesitation gone but throttle response is alot better!!Just like the standard injectors!!
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Stingray Car Security ph 0414445444 Single din radio fascias for fg to fgx fords Australia wide . FG 1 2 and 3 gauge holder in stock now! https://stingraycar.com.au/shop/ Site Sponsor See Sponsor Stingray Car Security 😍👌✌ AU wagon 6 14.241@96.75 1/4 mile sold.Octane fg xr6 turbo!! 12.312 112.21 mph home tune f6 injectors gone ..now in nitro fgxr6t ready to go again 
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06-08-2007, 09:18 PM
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#2 | |||
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AFF's 1st DM.......
Join Date: Dec 2004
Location: Wha???... There is only 2 states 2 be in.. WA or Drunk..
Posts: 6,200
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Sweet what was the std pressure and what its set at now????
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FORD GIVING POWER TO THE PEOPLE Alloy headed 347ci EDXR8 13.21 @107.7mph Quote:
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06-08-2007, 09:22 PM
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#3 | ||
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Smile
Join Date: Dec 2004
Location: Merrylands Sydney
Posts: 8,541
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Standard injectors were at 39 psi. My bigger ones at 45 psi.This was not enough to keep the problem away.Now at 55 it seems good.
__________________
Stingray Car Security ph 0414445444 Single din radio fascias for fg to fgx fords Australia wide . FG 1 2 and 3 gauge holder in stock now! https://stingraycar.com.au/shop/ Site Sponsor See Sponsor Stingray Car Security 😍👌✌ AU wagon 6 14.241@96.75 1/4 mile sold.Octane fg xr6 turbo!! 12.312 112.21 mph home tune f6 injectors gone ..now in nitro fgxr6t ready to go again
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06-08-2007, 09:26 PM
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AFF's 1st DM.......
Join Date: Dec 2004
Location: Wha???... There is only 2 states 2 be in.. WA or Drunk..
Posts: 6,200
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Did you have it connected to an af meter? any downsides ? ie pulse width etc
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FORD GIVING POWER TO THE PEOPLE Alloy headed 347ci EDXR8 13.21 @107.7mph Quote:
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Misfire solved after 3 months looking!!!
Linear Mode
