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Its not the TPS. Engines that use MAP sensors can usually operate (maybe not very well) with the TPS completely disconnected.I believe the NSX, like a lot of other engines, shuts fuel off when the throttle is closed and then restarts injecting when the RPM drops close to idle or when the throttle is opened again. I can't remember the specifics about the NSX; but, I seem to recall that the throttle switch has to go completely closed or close to completely closed for this momentary shut down to take place. When this occurs, the engine should not die completely as fuel injection should start as it approaches idle speed. If this was your problem, I think that it would occur all the time. Since that is not the case, I think your problem lies elsewhere. As JD suggests, check the ignition switch. with the engine running and in neutral, try wiggling the key a little bit (definitely not so much that you engage the starter) and see if the engine has a momentary hesitation or dies.
Its not the TPS. Engines that use MAP sensors can usually operate (maybe not very well) with the TPS completely disconnected.
I believe the NSX, like a lot of other engines, shuts fuel off when the throttle is closed and then restarts injecting when the RPM drops close to idle or when the throttle is opened again. I can't remember the specifics about the NSX; but, I seem to recall that the throttle switch has to go completely closed or close to completely closed for this momentary shut down to take place. When this occurs, the engine should not die completely as fuel injection should start as it approaches idle speed. If this was your problem, I think that it would occur all the time. Since that is not the case, I think your problem lies elsewhere.
As JD suggests, check the ignition switch. with the engine running and in neutral, try wiggling the key a little bit (definitely not so much that you engage the starter) and see if the engine has a momentary hesitation or dies.
