Car jerks when accelerating from a stop
#21
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Originally Posted by starchland,Apr 23 2009, 05:28 PM
ok sure bang the map sensor...but has anyone ever tried cleaning the tiny little hole it gets its reading from?
#22
TreyDM is correct.
The low speed bucking is due to the fact the S2000 is not designed to be lugged around at low speeds - part of that is ECU mapping and part of that is due to the cam profile. The low cam is still relatively aggressive compared to more tame street cars and if you get caught in slow traffic, you can experience some cam surge.
Everyone already seems to instinctively know how to solve this - push in the clutch and feather it occasionally to dampen out the surge.
The low speed bucking is due to the fact the S2000 is not designed to be lugged around at low speeds - part of that is ECU mapping and part of that is due to the cam profile. The low cam is still relatively aggressive compared to more tame street cars and if you get caught in slow traffic, you can experience some cam surge.
Everyone already seems to instinctively know how to solve this - push in the clutch and feather it occasionally to dampen out the surge.
#23
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You can clean the MAP sensor if you're certain that's what it is. Likely won't hurt anything.
Go buy a can of electronics cleaner at any auto parts store. Spray the sensor a few times. That's it.
Go buy a can of electronics cleaner at any auto parts store. Spray the sensor a few times. That's it.
#25
happened to me too. bought new map sensor with the zip tie and i still get the violent jerking in first gear sometimes. usually happens when the engines been warm for a while and its hot out and im idling for a small period like in traffic
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