A week ago I suddenly had a problem with acceleration hesistion/stumbling right around 7k rpm in all gears (well at least gears 1-3). Searching through the trusty S2ki board I quickly found threads with similiar sounding problems all pointing to the map sensor. So I followed the recommended procedure of tapping the map sensor a few times with a screwdriver and disconnected/reconnected the cable to it.

Well this solved the problem completely...however my S2000 comes out of std warranty in a couple of months and now I'm wondering if I would have been better off taking it to the dealer while it was malfunctioning so I could have gotten a brand new part. Does its misbehavior once indicate that its starting to go bad and should I now expect frequent problems with it or have others who have had to resort to pounding their map sensor had the problem stay fixed?

Thanks...

 

The map sensor costs $43.82 from H and A...not really an expensive part, should it go bad.

 

[QUOTE]Originally posted by winter
[B]...I'm wondering if I would have been better off taking it to the dealer while it was malfunctioning so I could have gotten a brand new part.

 

Is it recommended to reset the ECU (by disconnecting the battery?) after changing or tapping on the MAP sensor?

My car has not exhibited any high-speed hesitation but it does seem to "stumble" when the engine returns to idle while its cold (even with 3 bars on the temp gauge).

 

My car used to do this but has stopped hesitating above 6k, the only thing I have had done was the dealer TSB on the spark plugs. I don't think the two issues are related.

Where is the MAP sensor located, incase it happens again?

 

A picture is worth a thousand words, check this thread: Link

 

Thanks! Last time I did a search on this topic I didn't find that very helpful picture. Glad you pointed it out.