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Intake spitback

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Old Aug 3, 2013 | 03:21 AM
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HoleeKRAP's Avatar
HoleeKRAP
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Default Intake spitback

I put an 06 Nightrain engine in a Heritage and everything is stock. It is fuel injected. I am getting a spitback through the intake. It starts up and runs GREAT for 30-45 seconds then starts popping in the intake. I shut it off and it will start up fine again and run great for another 30-45 seconds then do it all over again. I have changed out the intake seals and head gasket and the pushrods are straight. I have put a full tank of gas in it to see if it's the fuel regulator housing but it doesn't get any better.I have changed the injectors out and still nothing. I know if I keep tossing money at it I will eventually get lucky but I am really not trying to drown it in cash heh...The plugs are good and don't foul and the plug wires are good.Anyone run into these problems before and have any idea? I haven't been able to check the pressure in the fuel system yet. It's the most awesome looking piece of crap on the road. Any help would be appreciated. And please..before anyone asks...yes I checked the tire pressure,the moon is in it's final orbital phase and all zodiac signs point to venus is aligned with saturn. Oh I almost forgot the IAC sensor resets nicely and was decently clean as well.I even checked the ET sensor and it puts out a nice 2.6k ohms. I didn't heat it up with a lighter though to check the change.It pops at idle and midrange which causes it to surge when keeping it at constant RPM's. I haven't tried to get it up to top gear because I don't want it to explode into a million pieces and kill me so I was gonna get it running good first before trying it.
 

Last edited by HoleeKRAP; Aug 3, 2013 at 03:36 AM.
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Old Aug 3, 2013 | 07:04 AM
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prodrag1320
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check the hose in the tank to see if its ot a hole in in it fairly common problem
 
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