Automobile(s): '80 Eldorado, '50 Chrysler Windsor, '92 Ford F-250 7.3 4x4
Testing a MAP sensor
Does anyone know how to test a MAP sensor for a 1980 Eldorado? Its mounted near/on the ecm. My car runs rough when I come to a stop and it cutts out at takeoff sometimes. The timing is at eight degrees and it should be at ten, but the distributer is frozen in the block, i.e.- I can't turn it. My chiltons manual says that the map could be malfunctioning, but I hate to go and buy one and have it not repair the issue, like I have done so many times before. Is there a way to test them? Thanks.
Automobile(s): '80 Fleetwood Coupe, 1994 and 1995 Mercedes 140 Coupe
Re: Testing a MAP sensor
The map sensor can be disconnected from the circuit and checked with an ohmmeter andhand operated vacuum pump. Hook the pump to the vac port and look for varing resistance between 2 terminals with change in vacuum.
Which engine do you have?