Thread: need help asap no injector pulse 5th cyl

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  1. #1 need help asap no injector pulse 5th cyl 
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    I've always wanted a gtp I found one drove fine then it started to have a mis fire in number five changed plugs wires no luck hooked up a noid light and nothing on 5 hooked up a pcm from a s/c Buick riv and the noid lit up but the car wouldn't run bought a new pcm and had it flashed and its still doing the same thing car runs but there's no pulse to number 5. Any ideas please help I got close to a grand in to this thing I've owned it 3 weeks and got to drive it once
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  2. #2 Re: need help asap no injector pulse 5th cyl 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    Could be the wire harness.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
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  3. #3 Re: need help asap no injector pulse 5th cyl 
    Donating User Swiggles's Avatar
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    ^^ agreed its probably the wiring, is the injector connector connection clean?
    No more GP 04 Impala SS Indy:
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  4. #4 Re: need help asap no injector pulse 5th cyl 
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    Well like said I don't think its the harness cause we pulled the sheld off the wires and its all good and with the pcm off the Buick the noid lit up and worked the car just wouldn't start but all the injectors worked
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