PCM wiring for autometer air/fuel and boost gauges

Robinson

Registered User
im looking for the correct wires to tap for an air fuel gauge and for an aftermarket boost gauge. on my 4.6 i know i couldnt tap into the o2 sensors to get a reading for the air/fuel, i had to tap into the PCM wiring harness. i have no idea where to hook the boost gauge up either.

help is much appreciated.
 
Rob,
I take it your using auto meter gauges.

A/F meter gauge:

You can use there O2s that they say to use or you can use the O2s in the car. Mine is hook up at the O2 sencor at pass side on the car. It gets a better reading there.
After it is hook up, it sould run in the frist,to two second green bars on the gauge at a idle.

Boost gauge:

You can hook this up to the vac. hose that runs up to the dash cluster to the boost gauge on the dash. Just put a three tee spilter in. One line comes in threw the fire wall, one goes to vac. gauge on the dash, and the other too your new gauge.

You can find some small fuel line at a hobby shop that sells gas remote cars that will work good for this app.

Kurt Sr
 
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