Fuel Pressure
Gauge problem I think. I have the Dipricol Optix electric fuel pressure gauge thats doing funny things, when I first installed it it was reading about 17.5 psi now today when I started the truck it was reading about the same I drove it about 15 miles and I look up and its sitting at 30psi well I know thats not right so I shut the truck off and then back on and it still shows 30psi at idle it goes down to about 24.5 to 25 at 70mph.
:humm:I am thinking its the sending unit. Could it be my Airdog? or could it be the gauge itself? Any body got any other suggestions? |
Probably the best place to start is to have a mechanical gauge that you can temporarily install to get a true fuel pressure reading.
Very unlikely that its the AirDog. |
Yeah I didnt really think it was the Airdog, just trying to cover all my bases before I start buying things.
---AutoMerged DoublePost--- Well I took out the sending unit and put a mechanical gauge on it and I am getting 17.5psi. So is it the sending unit or the gauge?:humm: |
Are you using an isolator before the sending unit? If so, it's most likely there. Otherwise, it's probably the sending unit or a bad ground.
Dave |
Electric guages are notorious for grounding problems. Make sure youve got some bare metal, as well, use a different grounding point than your other guages. Always try the simple/cheap things first before buying the expensive parts.
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Nope no isolator and the grounds good the two other gauges are grounded to the same spot and they work just fine. So I need a sending unit for the Dipricol Optix electrical fuel pressure gauge. Wow that didnt even last 6 months, Wonder if it has a warranty.:humm:
---AutoMerged DoublePost--- Well I will try moving the ground then. |
it should have a warranty but remember the sending unis ground themselves when you screw them in... so is the gauge grounded good? and i would call and check on the warranty...im saying it has one, i have had a oil pressure sending unit on my truck for a year, and it still works fine....
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I know autometer wants you to use a pressure restrictor as they have same problem with the sending unit going bad.
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Pressure spikes on the CR's are not a problem like the VP's. However, I did use about 6" 's of rubber hose between my electric sensor and the port to isolate it from vibration. The sending units do not like vibration at all.
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Well I got this problem fixed, and thanks to Jim at Upstate Diesel Performance for getting this taken care of under warranty.:U::c:
It was the sending unit, popped a new one in and it was back to normal 17.5 psi:rocking: |
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