Thanks for the response. Actually the ears were the problem...not because they were missing, but because they were grabbing the sensor too hard. I lightly filed a little angle on the base of the sensor where the ears would grab and it popped right in.

I have been trying to replace my MAP sensor on my 2000 V70 XC which sits in a hole on the intercooler pipe and is held in place by two plastic clips. No matter how hard I try to push it into place , I can't get it to seat. Is there a trick to this?

Also, if I can't get it to fit, can I just tape ...