Map Sensor code
Code 3 - MAP Sensor
Usually means there is something wrong with the sensor itself.
Has the the most control over the fuel injector pulse width.
When the MAP voltage is too high check code 5.
incorrect cam timming
incorrect iginition timming
restricted exhaust
excessively worn engine or leacking valves
Testing - Voltage varies from about .6v to 2.7v. Running no load will usually be less then 1v or slightly lower, when warm and idling. Under heavy load 2.5 to 2.75 volts. PA sensor should also read close to the same with Engine Off and Key On (EOKO).
Condidtion MAP Volts Inj PW Exhaust CO
Normal .94 2.0 ms .3%
Vacuum Leak Created on MAP Hose 1.13 2.3 ms 6.5%
Bigger Vacuum Leak Created on MAP Hose 1.25 2.7 ms 9.9%
MAP Sensor Wires:
1 White/Red
1 Green/White
1 White
I have another question. I am now getting code 1 as well but something strange is happening. I am getting 1 blink, then a pause, then 1 blink again, then 3 blinks (map) and then 17 blinks(VSS) what are the significance of the (2) one blinks? Anyone
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tek9_ej2
Honda Civic / Del Sol (1992 - 2000)
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MIZIKETSK
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