Question about 2003 GMC Envoy
That's the MAP sensor. Either clean it or replace it. Right on top of the engine near the firewall next to the throttle body, will take you litterally seconds to replace.
Also, a throttle body cleaning is probably due.
Posted on May 26, 2011
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Posted on Jan 02, 2017
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The Manifold Absolute Pressure (MAP) sensor
responds to changes in the intake manifold pressure (vacuum). 5 Volts is
supplied to the sensor from the PCM (powertrain control module). Inside the MAP sensor is a
resistor that moves in relation to manifold pressure. The resistor varies the
voltage between about 1 volt to 4.5 volts (depending on engine load)
and that voltage signal is returned to the PCM to indicate manifold pressure
(vacuum). This signal is essential for the PCM to determine fuel delivery. A
P0107 DTC is set when the PCM sees that the MAP signal voltage is less than .25
volts which is too low.
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook Potential Symptoms
The causes of a low MAP sensor signal
circuit (P0107) could be
any of the following:
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Feb 19, 2017 | 2003 GMC Envoy
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