 Fuel Pressure Tester, Which one to by, what adapter is needed? |
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| SteveL |
 Aug 10 2021, 10:01 AM
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#1
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Senior Member  Group: Members Posts: 658 Joined: 7-August 03 From: Andover, MN Member No.: 991 Region Association: None 
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74 1.8 L-Jet that is dying after running for a few minutes. Acts like it is running out of fuel. I need to put a fuel pressure gauge on it to confirm.
I looked and there is a small fitting on the driver side fuel rail. All of the fuel pressure gauges I see for sale have large schraeder valve connectors. Is there one that works with the factory fuel rail fitting? Or do I need to get one with a T fitting and cut the fuel line? Thanks |
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Replies(1 - 6)
| jrmdir |
Aug 10 2021, 10:10 AM
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#2
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Member Group: Members Posts: 224 Joined: 13-May 21 From: Central Ohio Member No.: 25,544 Region Association: Upper MidWest
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Hi Steve:
I had the same question until I looked more closely at that test outlet on the fuel rail. Once you take out the center screw plug it's a simple hose barb with a lip around the top. Just need a length of FI hose and a clamp - plus a gauge that also accepts a hose fitting. And we're in luck! I was just going to post this to the group, but Harbor Freight has a super low price on a set that includes a hose barb fitting. Check their website and/or watch for my next post. Regards, Ron |
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| GregAmy |
Aug 10 2021, 10:24 AM
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#3
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Advanced Member Group: Members Posts: 2,302 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States
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5/16" fuel hose and a clamp.
I use the HF one on my D-Jet. |
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| ndfrigi |
Aug 10 2021, 10:45 AM
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#4
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Advanced Member Group: Members Posts: 2,928 Joined: 21-August 11 From: Orange County Member No.: 13,474 Region Association: Southern California
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You can visit various auto supply store like Pepboys and Oreilly’s that have fuel pressure kit loaner tools you can borrow. You will just need to pay the tools and give you few days to use and get full refund after returning them.
Driver side middle fuel rails has the access for fuel pressure. Or buy a fuel pressure gauge that you can install permanently in the middle of the fuel line. like between passenger and driver side fuel rail line. |
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| gonzo54 |
Aug 10 2021, 10:52 AM
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#5
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Orange Crush Group: Members Posts: 224 Joined: 10-May 19 From: Seal Beach, CA Member No.: 23,112 Region Association: Southern California
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Harbor Freight works good on my D-Jet
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| SteveL |
Aug 10 2021, 01:19 PM
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#6
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Senior Member Group: Members Posts: 658 Joined: 7-August 03 From: Andover, MN Member No.: 991 Region Association: None
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Thanks all for the quick responses. (IMG:style_emoticons/default/beerchug.gif)
Looks like a run to harbor freight is on my evening plans. |
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| jim_hoyland |
Aug 10 2021, 01:32 PM
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#7
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Get that VIN ? Group: Members Posts: 9,302 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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QUOTE(ndfrigi @ Aug 10 2021, 09:45 AM)  You can buy a fuel pressure gauge that you can install permanently in the middle of the fuel line. like between passenger and driver side fuel rail line. Excellent for roadside diagnosis: if engine suddenly stops and the fuel pressure gauge reads zero, the fuel pump stopped. If Rhine stops and Fuel pressure gauge shows pressure, then fuel pump is ok. I carry a fuel pump, and the pump is located in the front trunk where I can real it. Attached image(s) 
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