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Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Anyone know the correct resistance for the OP sender when no pressure is present (ie, what resistance makes gauge read "0")?

Also, is it a mistake to use thread sealer on the sender (for grounding purposes)?

TIA

rasta
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

I know someone knows the answer to this. . .
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WeiBe (1987 924S 2.5t) - 931 S3

924RACR · Posted: Thu Jan 04, 2007 5:19 am Post subject:

infinite (open circuit) will cause it to read 0.
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Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

So that means, disconnected should read zero, right? So, if the gauge is pegged when disconnected at the sender, I have a short in the sender wire?

Thanks, V
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

924RACR · Posted: Thu Jan 04, 2007 7:09 am Post subject:

Exactly!
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

So, seems like I should just rewire it with a fresh length of wire doesn't it?
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

931Tony · Joined: 15 Jan 2007 Posts: 40 Location: Lawrence, KS

You're right on not using any sort of thread sealer on the OP sender. Almost all single wire sender/sensors ground through the block, so you might check that too. G'luck!