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Classic 3800 rpm hesitation problem

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Old 01-15-03, 04:53 PM
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Question Classic 3800 rpm hesitation problem

Ok so ive done lots of research on this subject and i have now found out my car has this problem.
Basically whats happening is that my car hesitates right at 3800rpm but then continues fine after.
What i want to know is through you guys's experience with this problem whats the best way to fix it? Ive read running new grounds helps. Also what about if i replace my secondaries? Isint this where the hesitation is coming from? possible bad sec. injectors?? I was planning on replacing my sec. with some nice 720cc injectors from RP
Let me know what you guys think
Thanks
Old 01-15-03, 10:00 PM
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Port the wastegate.
Old 01-15-03, 10:12 PM
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I had that problem and got rid of most of it with running a few ground wires, cleaning the battery terminals, and running some Gunk fuel injector cleaner in the tank while driving it harder than normal (above 3800 RPM).

Do you have a way to tune those 720cc injectors? I think it will run really rich with the stock computer. I didn't read your mod list because I was too lazy.
Old 01-15-03, 10:12 PM
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port that bitch mines ported. hehe. well both have nicely ported wastegates. flip and ryl>
Old 01-15-03, 10:12 PM
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Psst.. porting the wastegate wont fix a fuel problem. Ryl, seriously search. This topic has been discussed to death....
Old 01-15-03, 10:14 PM
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Originally posted by 88IntegraLS
Do you have a way to tune those 720cc injectors? I think it will run really rich with the stock computer. I didn't read your mod list because I was too lazy.
If he doesnt, thats the problem. Secondaries are coming online and flooding it w/ fuel.
Old 01-16-03, 05:08 AM
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This problem seems to have various causes with various solutions (although porting the wastegate isn't one of them). First try adding extra grounds to the ECU and boost sensor (read this page), as well as additional grounds for the block and battery made from 8GA cable. While this works for some people, it didn't help me at all. However removing the injectors and having them professionally cleaned completely cured the problem. Don't waste your time with in-tank cleaners for this.
Old 01-16-03, 05:11 AM
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Originally posted by dr0x
If he doesnt, thats the problem. Secondaries are coming online and flooding it w/ fuel.
He hasn't bought them yet.
Old 01-16-03, 05:26 AM
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Good point. I went off the other dudes post
Old 01-18-03, 12:44 PM
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Cool thanks guys

Ok so ill start with gorunding then go from there.
Old 01-18-03, 12:45 PM
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lol i meant grounding
Old 01-29-03, 01:15 PM
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3800 RPM hesitation

this thread is kinda old by now, but it may help to answer my question.....
so if i know my injectors are clean.....(RC hooked em up) then I should just try to ground all the afformentioned or is there something else to try as well......
Old 01-29-03, 02:25 PM
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The only thing that ever fixed my hesitation was adding a 4 gauge wire from my battery to the body and another 4 gauge wire from my body to the engine. -Gabe
Old 01-29-03, 02:36 PM
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awesome....
thanks
=-dustin
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