what does it look like and where is it located??how can i tell if my map sensor is bad

 

It is connected to the round white plug:

the mass air flow sensor tells the computer how much
air is passing through the intake
so that it can ajust the amount of fuel going in.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 88DXCRX &raquo;</TD></TR><TR><TD CLASS="quote">
the mass air flow sensor tells the computer how much
air is passing through the intake
so that it can ajust the amount of fuel going in.
</TD></TR></TABLE>

Too bad its not a mass air flow sensor.

 

Most Pressure sensors operate on 5 volts from the ECU and return a voltage based on pressure(vacuum) applied to the sensor. Best way to test a MAP sensor in your situation is using a DVOM. The procedure for testing goes as follows:
1. turn the ignition on(engine off)
2. Measure the voltage of the sensor output.
3. using a hand operated vacuum pump, apply vacuum to the sensor

A good sensor should change voltage in relation to the applied vacuum. If the signal does not change or the values are out of specs, then replace it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skelly ed6 &raquo;</TD></TR><TR><TD CLASS="quote">

Too bad its not a mass air flow sensor.</TD></TR></TABLE>

You got me.. Sorry.. MAP sensor..