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2000 rpm bucking

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Old 04-04-08, 01:25 PM
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2000 rpm bucking

this doesnt really bother me bc my car rarely sees low rpms, but i was just wondering why my car bucks when i go below 2000 rpms? i cant really describe the bucking its just odd.
Old 04-04-08, 01:44 PM
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bad tps ..bad ground..could be a number of things
Old 04-04-08, 01:49 PM
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Because that's how manual transmission cars with low torque work... they don't like driving in low-gear with low throttle.
Old 04-04-08, 01:57 PM
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manual transmision cars arnt supose to buck (unless u cant drive). and a 13b dosent really have low torque.
Old 04-04-08, 02:01 PM
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My engine did it because of an out of adjustment TPS. Easy fix if you have a multimeter.
Old 04-04-08, 04:46 PM
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Originally Posted by whereiscarmensandiego
bad tps ..bad ground..could be a number of things
did you check those, I'm really interested in the solution.
Old 04-04-08, 04:49 PM
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Originally Posted by whereiscarmensandiego
manual transmision cars arnt supose to buck (unless u cant drive). and a 13b dosent really have low torque.
Did nobody else catch this failure of a statement?
Old 04-04-08, 04:53 PM
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Originally Posted by LSD-Ryu
Did nobody else catch this failure of a statement?
ONLY CAUSE YOU POINTED IT OUT!!!! ^_^ Nice Catch
Old 04-04-08, 06:21 PM
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check it out maf... me have same trouble, only disconnect and cover well ............

to separate from heat of the hose of the radiator, Cover with ALUMINIUM PAPER....


:ok:
Old 05-21-08, 09:27 PM
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Originally Posted by Valkyrie
Because that's how manual transmission cars with low torque work... they don't like driving in low-gear with low throttle.
Agreed
Old 05-21-08, 09:29 PM
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Originally Posted by whereiscarmensandiego
a 13b dosent really have low torque.

John Deere offered a rotary engine in farm tractors back in the 60's or 70's I believe. It was an option for a grand total of a year or two, because they simply did not have the torque to take a hit and keep themselves running.

The 13B is no different, these are not torque monster cars.
Old 05-21-08, 09:29 PM
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my car doesnt buck at all.. even when its 1500rpm in 5th
Old 05-21-08, 10:11 PM
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That's cause it really only does it badly in first...
Old 05-21-08, 11:06 PM
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It could be a vacuum leak. Under higher airflow a leak will typically make less of a noticeable difference.
Old 05-22-08, 02:42 AM
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I have that problem at exactly 2200 rpms, and it's only noticeable in first and second gear. My TPS has a giant dead zone on it so that's obviously the cause of it for me atleast. There's a really simple schematic in the faq section for building a calibration circuit for the tps using two leds and like a resistor.
Old 05-22-08, 02:13 PM
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TPS adjustment is absolutely the most sensitive and critical adjustment above any other. Usually within 1/2 turn of the adjustment screw, that's how close the tolerance is.
Old 05-22-08, 11:29 PM
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remember its not good to have the car below 2000 rpms...so try to stay away from this...
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