MAP Sensor Installation
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Wiring in a replacement MAP Sensor
If wiring in a replacement MAP sensor take great care to ensure that the wiring is correct before applying power. Most MAP sensors will not tolerate reversed polarity and will burn out very quickly.
To save cutting the wiring harness it is recommended to use a replacement MAP sensor with a Honda type connector. Failing that, use a MAP sensor with wiring pigtail and wire the MAP sensor in parallel with the stock MAP connector (only plug in one MAP sensor at a time!). This allows easy diagnostics of any problems by allowing the stock MAP sensor to be hooked up at any time. It is not recommended to cut the stock MAP sensor connector off.
Stock MAP Wiring
Determine the replacement MAP sensor wiring and splice the wiring into the factor harness. Double check all connectors before switching the ignition on as most MAP sensors will burn out if you make a wiring mistake.
Plumbing in the MAP sensor
Run a vacuum line from the intake manifold for the MAP sensor. The MAP sensor must read the intake manifold pressure accurately.