Testing a stock tach/oil press gauge
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From: Los Angeles
Car: 1987 IROC-Z Camaro
Engine: 305 LB9
Transmission: 700r4
Testing a stock tach/oil press gauge

So the ground and signal sources are labeled on the circuit, but which post do I connect the power to? Also, anyone have any good ideas on how to test the oil pressure gauge without having it hooked up to the car? Electronics n00b here...
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From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
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This Is Only A Test . . . . . . .
To test the oil gage connect one end of a 47Ω resister from the connection the sender wire would be connected to.
Connect the end of the 47Ω resister to the ground connection on the gage.
Apply power to the gage.
If the gage reads about half way the gage is good.
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To test the tach apply power, then using a battery charger, connect ground to ground, and the + to the signal input.
If the tach is for an 8 cylinder, it will indicate 1800 RPM.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
They Want To Put HOW MANY TV Cameras In My Car?!?!?!
Connect the end of the 47Ω resister to the ground connection on the gage.
Apply power to the gage.
If the gage reads about half way the gage is good.
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
To test the tach apply power, then using a battery charger, connect ground to ground, and the + to the signal input.
If the tach is for an 8 cylinder, it will indicate 1800 RPM.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
They Want To Put HOW MANY TV Cameras In My Car?!?!?!
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