Thread: Replacing fuel injector tips?

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  1. #1 Replacing fuel injector tips? 
    GXP Level Member Timing's Avatar
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    So ive been chasing a misfire and came across this. 4 of them look like this.


    Is it possible to replace these tips?
    Also could this be my cause of misfire from allowing unmetered air into the cylinder?
    08 MazdaSpeed 3- Treadstone tr8l, Ebay Piping, Ported intake,Thermal gasket, Cs Injector Seals,Cobb intake/inlet, Autotech Internals, Poly mounts, Speed Daddy DP, Magnaflow CB,
    RPF1 17x9 255/45 Direzza Zll
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  2. #2 Re: Replacing fuel injector tips? 
    Moderator dsmuts's Avatar
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    That should be fine. The o ring seals still
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
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  3. #3 Re: Replacing fuel injector tips? 
    GT Level Member WolvesSoulZ's Avatar
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    The tip is just a retainer, doesn't affect the sealing ability of the o-ring. Not that I think so either.
    Last I looked, I didn't find a part number for these when I broke one off when I installed my cam, just used an old one from one of the few injectors laying around for the sake of it, otherwise would've ran it without the retainer, just the o-ring.
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    2004 GTP Comp-G - 3.3"/3.2", XP, #50 , 4" MAF, SD's, 180*, AL103's, HAI, Tuned, 06+ Dual pistons brakes, STB's, SSC's and FE3.
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  4. #4 Re: Replacing fuel injector tips? 
    GXP Level Member Timing's Avatar
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    Well then i need to figure out this misfire.....

    more info
    http://www.grandprixforums.net/fuel-pressure-82109.html
    08 MazdaSpeed 3- Treadstone tr8l, Ebay Piping, Ported intake,Thermal gasket, Cs Injector Seals,Cobb intake/inlet, Autotech Internals, Poly mounts, Speed Daddy DP, Magnaflow CB,
    RPF1 17x9 255/45 Direzza Zll
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  5. #5 Re: Replacing fuel injector tips? 
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    I had a similar problem over the summer, immediately after engine work that required me to pull the fuel rails.

    http://www.grandprixforums.net/cam-s...ml#post1027494
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