Manifold Absolute Pressure Check - Daewoo MATIZ Service Manual

1F – 40 ENGINE CONTROLS
Circuit Description
The Manifold Absolute Pressure (MAP) sensor measure
the changes in the intake manifold pressure which result
from engine load (intake manifold vacuum) and rpm
changes. The MAP sensor converts these changes into
voltage output. The Engine Control Module (ECM) send
a 5-volt reference voltage to the MAP sensor. As the in-
take manifold pressure changes, the output voltage of

MANIFOLD ABSOLUTE PRESSURE CHECK

MAP sensor also changes. A low voltage (high vacuum)
output of 1 to 1.5 volts is present at idle. A high voltage
(low vacuum) output of 4.5 to 5.0 volts is present at wide
open throttle. The MAP sensor is also used under cer-
tain conditions to measure barometric attitude changes.
The ECM uses the MAP sensor for the delivery and igni-
tion timing changes.
MAA1F060
DAEWOO M-150 BL2