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Old 10/28/2012, 10:46 PM   #1 (permalink)
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Car stalling and surging

My car has now been giving me problems. It has a rough idle in which sometimes it either turns off or almost turns off. Also when accelerating it bogs out and even flooring it wont do it justice. Once I've finally made it to the freeway if I'm holding it slighty accelerating it will be fine. Any ideas? I've changed the alternator and fuel pump so far and battery reads 12.75v it starts on first try. Thanks in advance.

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Old 10/28/2012, 11:50 PM   #2 (permalink)
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Anyone? I asked because it actually bogs out..is there a way to check injectors?

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Old 10/28/2012, 11:57 PM   #3 (permalink)
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Old 10/31/2012, 06:33 PM   #4 (permalink)
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A few things I would do first that are cheap and easy. Remove the air intake from the manifold, then remove the throttle body with four bolts(12mm IIRC). Don't lose/damage the gasket. Remove the TPS connector by using a flat head screw driver on that metal clip that holds it in. DO NOT LOSE IT. Next, remove the IAC(Idle air control), clean all the carbon in the manifold, throttle body, and IAC motor with throttle body/carb cleaner. Don't push the solenoid in, be gentle. Reinstall. Next I would clean your Mass airflow sensor with MAF cleaner(Yes, use this only). Let me know how that turns out. All in all this is $10 worth of parts and couldn't hurt to try first. If you don't know what I'm talking about, search. Easy to find stuff.
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Old 11/05/2012, 11:39 AM   #5 (permalink)
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My 03 Rs has been doing this too. It started one day about 6 months ago, ran for shit for about 50 mins. then started to run right again on her own. Then she did it again about a month ago, and again fixed it's self. Then it started again two days ago, and didn't fix it's self so I took her in to get scanned. they said it MIGHT BE the mass air sensor(along with a list of other things). So I got some MAF cleaner, and cleaned it. It did help, but didn't fix it. So then I just unplugged the MAS and she's running fine now. So I'm sure that is whats wrong. I have to wait till next week to have the cash for a new one. Now I'm thinking it wont hurt her too bad to drive like this for a few days( if I'm wrong PLEASE let me know) But you might want to unplug yours just to see if it's the same thing.

Just an idea...
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Old 11/15/2012, 02:11 AM   #6 (permalink)
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Alright all is well now, since I did all of the above I can't say what was the problem but somewhere and something I did fixed it. Thanks again.. plus a new or reman. MAF is crazy expensive.

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Old 11/15/2012, 06:04 AM   #7 (permalink)
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Quote:
Originally Posted by TheStigx View Post
A few things I would do first that are cheap and easy. Remove the air intake from the manifold, then remove the throttle body with four bolts(12mm IIRC). Don't lose/damage the gasket. Remove the TPS connector by using a flat head screw driver on that metal clip that holds it in. DO NOT LOSE IT. Next, remove the IAC(Idle air control), clean all the carbon in the manifold, throttle body, and IAC motor with throttle body/carb cleaner. Don't push the solenoid in, be gentle. Reinstall. Next I would clean your Mass airflow sensor with MAF cleaner(Yes, use this only). Let me know how that turns out. All in all this is $10 worth of parts and couldn't hurt to try first. If you don't know what I'm talking about, search. Easy to find stuff.
Awesome! I was just having this issue. I'll try this out first. Cheers.
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Old 11/15/2012, 10:13 AM   #8 (permalink)
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Alright all is well now, since I did all of the above I can't say what was the problem but somewhere and something I did fixed it. Thanks again.. plus a new or reman. MAF is crazy expensive.
No need for a new or refurb. Plenty of working MAFs out there in junkyards. They should be fairly cheap on car-parts.com
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Old 11/15/2012, 12:21 PM   #9 (permalink)
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Bogging down might also indicate ignition issue. So new plugs, wires, cap, and rotor would be a good thing to replace if they are old.
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Old 11/15/2012, 02:08 PM   #10 (permalink)
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possibly a bad vacuum line that is sucking itself closed
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