HttpWayne
NAXJA Forum User
- Location
- Auburndale, FL
...also... is there oil in the engine?
MAP can be checked with a multimeter. Make sure the connector is snapped in real good. As a matter of fact, unplug it, spray it out with electronics cleaner, and plug it back in.
Follow the vac lines from the map down to the throttle body. Any crack, melted area or loose fitting nipple can cause the MAP to get no vacuum signal. The MAP then tells the ECU that there's low or no vacuum and the ECU richens the mixture a bunch.