Sorry to start a need thread about this, couldn't find anything about it in the search.

I've done the map whack several times and reset my ecu and my car will run fine for a few days and then the hesitation at high rpm start again. I have new plugs and just got my valves adjusted.

So my question is, - is the newer MAP sensor better then the old one or is just the way it's attached better.

 

Maybe both. Your MAP sensor might just be toast and it might be that it needs a more solid vibration free connection.

 

Or the regular beatings the sensor has been taking are effecting it's accuracy