HELP!! People with the newer full sweep fuel pressure gauge.
Thread Starter
Joined: Aug 2000
Posts: 6,344
HELP!! People with the newer full sweep fuel pressure gauge.
I got my recall replacement gauge back. The wiring harness was pretty long so I chopped it alittle shorter. Now, I'm confused because there are two black wires. Which black wire goes to ground? and which black wire goes to the sender?
Looking from the back of the gauge the harness should be like this...
--------Slot1-Slot2-Slot3-Slot4-Slot5
Top----empty-empty-black-black-red
Bottom-empty-empty-empty-grey-purple
Where does slot3/top go?
Where does slot4/top go?
If someone can pull their gauge out of the pillar, please let me know which wire goes where
Looking from the back of the gauge the harness should be like this...
--------Slot1-Slot2-Slot3-Slot4-Slot5
Top----empty-empty-black-black-red
Bottom-empty-empty-empty-grey-purple
Where does slot3/top go?
Where does slot4/top go?
If someone can pull their gauge out of the pillar, please let me know which wire goes where
Thread Starter
Joined: Aug 2000
Posts: 6,344
Re: Re: HELP!! People with the newer full sweep fuel pressure gauge.
Thanks Matt 

Originally posted by MardiGrasMax
3 is gorund
4 is sender
3 is gorund
4 is sender
Thread Starter
Joined: Aug 2000
Posts: 6,344
It's in now. For some reason, my fuel pressure reading is higher with the new gauge. It's showing around 38psi at idle and 48 psi at WOT. That's about ~4 psi too much. Hmm...time for more trouble shooting. I guess I'll buy a mechanical gauge and check out my FP. That would suck if I need a FPR, because I just sold it 

Originally posted by Matt93SE
the new gauges are in now? woohoo!
tried to order one a few weeks back and they were on backorder because of the recall..
the new gauges are in now? woohoo!

tried to order one a few weeks back and they were on backorder because of the recall..
possibly the old one was inaccurate? 
if I remember right, the recall was due to a leaky sender unit or something, so since it deals with a faulty sender unit, it could have been reading incorrect pressure the whole time - or did you verify the old gauge to a mechanical gauge under the hood?

if I remember right, the recall was due to a leaky sender unit or something, so since it deals with a faulty sender unit, it could have been reading incorrect pressure the whole time - or did you verify the old gauge to a mechanical gauge under the hood?
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fastcarny
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