Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

Testing a stock tach/oil press gauge

Thread Tools
 
Search this Thread
 
Old Jul 23, 2013 | 03:31 PM
  #1  
penguinpanda0's Avatar
Thread Starter
Member
 
Joined: Jul 2011
Posts: 178
Likes: 0
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...
Reply
Old Jul 29, 2013 | 04:49 PM
  #2  
NINÅ's Avatar
Supreme Member
 
Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
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.



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?!?!?!

Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BRoss99
Electronics
28
Aug 10, 2025 05:08 PM
Jeremys87
Electronics
16
Jul 14, 2022 09:08 PM
justin57
TBI
30
Aug 20, 2015 07:05 PM
ChevyZ71
Interior
2
Aug 13, 2015 07:30 AM
89mulletbird
Southern California Area
0
Aug 10, 2015 10:16 AM




All times are GMT -5. The time now is 02:40 AM.