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Fuel Pump......?

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Old Dec 14, 2008 | 01:37 PM
  #1  
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Default Fuel Pump......?

When I start the car, and if i start go really slow (no hard take off or anything) the car will start to sputter as if its not getting gas. It does it sporadicaly and inconcistent enough that it has been difficult to pinpoint to anything.

Last night, i went into a parking lot and spun around a few times in a sustained donut. I didn't pop the clutch or anything, I just turned full-lock and over-accelerated the grip tires.

It spun around about 4 times then started to bog, which I expected. So I straightened out and put in the clutch for a moment to side-step the bog, and then revved......and NOTHING. I push the gas pedal to the floor, and nothing happened: No rev, no movement, nothing; just idling at about 800 rpm. Pumped the gas pedal about 2-3 times to try and get it do something, then all of a sudden it started revving again, as if i just suddenly started the car. It was bizarre! After it started revving again, it was fine, i put it in gear and proceeded as normal.

I'm wondering if myabe fuel pump is going bad, or something related to that. Any thoughts?

Thanks in advanced for any help and advice.
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Old Dec 14, 2008 | 02:29 PM
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you could have had a little bit too little fuel in there which sloshed away from the pickup and cause your momentary panic/fear. my advise would be to not do it at all, but I guess if you want to keep more gas in the tank...

this is only a guess though
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Old Dec 14, 2008 | 02:49 PM
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Hmm....well the donut is what made me most concerned, I was down to 2 bars left (ap1) when went in for that donut, so that particular instance, that could very well be what happened. But it does the sputtering as if it were running out of gas on an regular (but sporadic) basis. But only close to when I first start it up, and, once she's warmed up and fully rolling and moving, it seems to be fine. (SEEMS). Only once or twice has it done the sputtering after she's warmed up, and when it does to it, it seems to have something to do with taking off very slowly (for example, creeping forward)

I'm wondering if this is related to why my air pump keeps kicking one, which it does fairly regularly. I announced that to the peeps down at science of speed, and they felt it because I'm not running a cat, and have an spacer for the o2 in the cat, causing it not to read accurately.
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Old Dec 15, 2008 | 06:44 AM
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Please......any thoughts?
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Old Dec 15, 2008 | 06:53 AM
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If it bogs at cold start sounds like IACV, clean that bitch out..map sensor bump while you are at it
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Old Dec 15, 2008 | 09:15 AM
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Have you changed out the MAP sensor yet or at least given it a good whack?
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Old Dec 15, 2008 | 12:21 PM
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MAP sensor huh? Hmmm..... so just unplug it flick it a few times plug it back in? I don't now what IACV is? What is that and what would I need to do it to it


Thanks in advance.
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Old Dec 15, 2008 | 12:36 PM
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You might find some good information HERE. You can also try resetting the ECU. Sometimes when the weather changes I'll get some hesitation. It's just the ECU "learning", but resetting it can speed the process along.
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Old Dec 15, 2008 | 01:09 PM
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IACV

https://www.s2ki.com/forums/index.php?showt...&#entry10624891
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Old Dec 15, 2008 | 02:03 PM
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Cool thank you guys. You might be saving me time and money. I will try the map whack and ecu reset and clean the IACV and post back with results.

Thanks much.
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