aftermarket oil pressure gauge (1 Viewer)

Joined
Apr 29, 2010
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105
Location
North Carolina
installed new oil sending unit , its grounded. new oil pressure gauge its grounded wired hot wire to fuse box, problem is gauge spikes to all way over to 125lbs. should be around 35-40. help needed, what am I doing ? it is mounted under dash, stewart-warner brand , thanks for help
 
Joined
Dec 13, 2012
Messages
1,337
Location
KY
Are you sure you connected the wires to the right posts on the back? If you reversed the switched/ignition and ground wire it might cause what you are seeing. Also, hopefully you didn't use teflon tape on the sending unit as it will prevent it from grounding.
 

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