Questions tagged [fuel-pressure]

The pressure of fuel supplied to the fuel injectors.

Filter by
Sorted by
Tagged with
2 votes
1 answer
76 views

Diesel engine problems only in summer

I own an Opel (Vauxhall) Tigra (2006) with a 1.3 diesel engine (Z13DT, over 110000 miles). To start, in the past One-two years ago, the check engine light would come on regularly in the summer with ...
danieldelrey's user avatar
1 vote
1 answer
61 views

Replace Old fuel filter or Fuel Pump | Dilemma

The mechanic today diagnosed my car rail pressure with roughly around 15 psi (1.5 bars) and it should be around 30-40 psi (2.5-3 bars). He told me that it could be fuel regulator, fuel pump or fuel ...
user74015's user avatar
0 votes
0 answers
221 views

Where is the fuel pressure test port located on the 2012 Dodge Grand Caravan?

I purchased the Innova 3640 Professional Fuel Injection Pressure Tester, and I want to test the fuel pressure on my 2012 Dodge Grand Caravan. Where is the fuel pressure test port located under the ...
Cody Kentucky's user avatar
1 vote
2 answers
180 views

Fuel Filter Bypass Valve Opening Pressure Differences

What is the consequence of using a fuel filter with a higher-spec'd bypass valve opening pressure ? Currently have a UFI ‎31.833.00 / 6Q0201051C on my 2008 City Golf - rated at 4.0 bar. Considering a ...
robut's user avatar
  • 145
0 votes
0 answers
107 views

how to connect pressure gauge to fuel line

2009 toyota corolla 1.8L How can I find connectors to tee in a pressure gauge to my fuel line? The fuel lines are pipes so it's not possible to cut one to tee in. Below are instructions from the ...
kinid.kinid's user avatar
1 vote
0 answers
553 views

how to Tee in a fuel pressure gauge to line on 2009 toyota corolla

Does anyone have experience teeing a fuel pressure gauge into the fuel line of a 2009 toyota corolla (specifically 1.8L) ? The 2010 model is virtually identical. The service manual says to connect it ...
kinidkinid's user avatar
1 vote
0 answers
61 views

2010 Ford focus failed MOT TDCI

The mechanic plugged the computer and got these faults: Exhaust gas recirculation control circuit (circuit hight) Exhaust gas recirculation value frozen. Fuel pressure control value. Injector control ...
yakob abada's user avatar
1 vote
0 answers
367 views

Dodge Ramvan B250 starts after 10-15 seconds crank - where is the fuel?

I have a 1989 Dodge Ram Van B250 TBI 5.2L 318ci engine. It takes about 10-15 seconds of cranking to start the engine. After it gets hot sometimes it never starts. I'm getting afraid of taking it ...
Brian's user avatar
  • 11
0 votes
2 answers
160 views

Is common-rail unreliable by nature?

After having a common-rail diesel car with low mileage who broke 4th injector, and one year after the 1st injector, I tend to be suspicious about the system. It features a deposit where fuel is at ...
sergiol's user avatar
  • 686
2 votes
0 answers
2k views

Replace fuel rail pressure sensor in 2006 Mercury Mountaineer?

The car is a 2006 Mercury Mountaineer V6, got about 150k miles. The dealership sale rep is telling me my fuel rail pressure sensor is shorting out and needs to be replaced. Apparently, its causing ...
LeeRoy's user avatar
  • 21
6 votes
1 answer
2k views

Do I have a fuel pressure or injector problem Part 2

This is a continuation of my previous fuel pressure / injector question. So the missing part for my fuel pressure gauge came in and I was able to do a few more tests. The first thing I think is that ...
Robert S. Barnes's user avatar
3 votes
1 answer
272 views

Why are there separate Fuel Pressure Regulator and Maximum Fuel Pressure Tests?

There are a few different active fuel pressure tests listed in the 97 Mazda 626 GF Work Shop Manual ( European ). The first two are an idle pressure test ( 30 - 36 psi ) and a fuel pressure regulator ...
Robert S. Barnes's user avatar
5 votes
1 answer
564 views

Do I have a fuel pressure or injector problem, or am I just chasing ghosts?

I just did a fuel volume test on my 98 Mazda 626 2L GF. According Tim Giles book Automotive Service: Each injector is energized for 15 seconds... Variations of more than 5 ml calls for replacement ...
Robert S. Barnes's user avatar
3 votes
1 answer
3k views

Do fuel pressure regulators allow some fuel to flow even when not turned on?

I'm completely rewriting this question since I really wasn't clear before. When discussing a fuel system with a return line and a vacuum operated fuel pressure regulator such as this: Where it says "...
Robert S. Barnes's user avatar
4 votes
1 answer
1k views

Can't get a fuel pressure reading

I wanted to test out my fuel system components on my 98 Mazda 626 GF 2L, so I hooked up my fuel pressure gauge between the fuel filter and the fuel rail. I've used this gauge on this car before, and ...
Robert S. Barnes's user avatar
8 votes
1 answer
927 views

Can't find schrader valve

I have a 89 camaro with a 350 engine, where can I find the fuel valve where I connect the fuel pressure tester? I looked up videos on where it's located but mine doesn't seem to have it, is there ...
PrynceCharmng's user avatar
11 votes
4 answers
5k views

How Much Pressure Drop across the fuel filter is normal / acceptable?

I was just curious how much of a pressure drop is usually normal across a fuel filter on a typical consumer passenger car?
Robert S. Barnes's user avatar