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Forum namePerformance/Engine
Topic subjectHELP SPITTING AND SPUTTERING PROBLEM
Topic URLhttp://forums.2gnt.com/dcboard.php?az=show_topic&forum=5&topic_id=137464
137464, HELP SPITTING AND SPUTTERING PROBLEM
Posted by monarchgreenpearl, Dec-31-69 06:00 PM
hello, i have a boosted 420a on stock internals and the other day i went to give my buddy his first ride in my car, so i went to punch it in 1st and it cut out real bad and was sputtering. sometimes in a higher gear ill just half throttle it and it will just lag i guess you could call it. if i full throttle it in a higher gear it like wants to boost but its almost like it just sits there and thinks about it for awhile, then boosts..

Help please!!!

p.s. new to the forum
137465, RE: HELP SPITTING AND SPUTTERING PROBLEM
Posted by DarkOne, Dec-31-69 06:00 PM
Welcome to 2GNT.

What are you using to prevent fuel cut?
137466, RE: HELP SPITTING AND SPUTTERING PROBLEM
Posted by monarchgreenpearl, Dec-31-69 06:00 PM
Im running the 6 injector setup off of greddy e-manange. it was running fine with no problems until it got around to being cold. im not sure if that has anything to do with it.
137467, RE: HELP SPITTING AND SPUTTERING PROBLEM
Posted by DarkOne, Dec-31-69 06:00 PM
Not sure what to tell you, then, That's not a common setup in these parts.

I can tell you that unless you're a 1995 2GNT, you absolutely need something to prevent the ECU from seeing boost. Typically it'll be an electical fuel cut defender (fcd) which limits voltage output from the MAP sensor to ~4.6v, or a mechanical check valve that prevents positive pressure from reaching the sensor at all (missing link).

I'm not sure if the e-manage has that capability.
137468, RE: HELP SPITTING AND SPUTTERING PROBLEM
Posted by monarchgreenpearl, Dec-31-69 06:00 PM
im in a 96 2gnt
137469, RE: HELP SPITTING AND SPUTTERING PROBLEM
Posted by bullettdsm, Dec-31-69 06:00 PM
Did you try the simple BLT? (boost leak test)
137470, RE: HELP SPITTING AND SPUTTERING PROBLEM
Posted by Gruff511, Dec-31-69 06:00 PM
^^AGREED. Your boosting problem sounds like a boost leak.
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