[buzzinhalfdozen]

As i stated MAP should be same as BARO (assuming you have a BARO sensor) engine not running most MAP sensors read approx. 99-100 KPA. Engine running will vary quite a bit due to intake and cam design, I would expect around 45-65 KPA at idle decreasing as you rev engine to maybe 35-45 KPA. Off idle your vacuum will stabilize a bit and provide a better signal. WOT you'll likely see 90-100KPA essentially BARO pressure. Good luck. Joe BTW your baro reading may be higher or lower than I listed depending on your location ie in the mountains or at sea level.