Quote:
|
Originally Posted by 88_S10
It wants to conk out on me when I come to a complete stop and then proceed. it is also hard to start and stay started. Any other suggestions? think my Computer might be screwed??? I am lost and now pretty broke.
|
Make sure the reference voltage at the MAP is correct. You should read 5.0VDC across the outer two terminals. That comes directly from the ECM regulated supply. Chanced are that it's O.K., and the MAP is actually detecting a low vacuum condition. Connecting a vacuum gauge would confirm that.
Make sure the vacuum source is connected to the MAP securely. The lack of adequate vacuum could also be related to the EGR problem you posted in this thread:
http://www.automotiveforums.com/vbul...d.php?t=611855
If the EGR valve leaks, vacuum will be very low, starting will be difficult, and idle quality will be terrible, if it will idle at all. Remove the EGR valve and inspect the pintle and seat. There will likely be carbon encrusted there, and you should scrape/clean it out as best you can to make sure the valve seals properly.