Fuel related code

Yeah. Your fuel pressure is low. Spec is 6 bar at key on which is 87 PSI. You are at 3 bar which is 43 PSI. This is assume you have the 3.6L engine. Do you have the turbo engine?

The fact that you have a code for the sensor, could just be a faulty reading but the fact that you have cold idle issues, points to a mechanical issue which low pressure would make sense.

Let me know what engine you have and we can go from there.

Yeah. Sounds like a weak fuel pressure issue. If you want to confirm it, hook up a mechanical gauge and see what it is while running. All that is doing is confirming the sensor is correct. However, I don't see any reason to doubt the sensor.

This means it could be a weak pump, restriction in the system. However, if it runs well it is not needed until it seems to get worse.

If a mechanical pump shows low pressure then the sensor is correct and its weak pump or other reason for low pressure. If the gauge is showing higher then the sensor is incorrect.

I copied it but never attached it. Sorry. Here is the process. It calls for special tools but it is not required.

The gauge is fine. The only thing I don't know if the adapter for the engine. That kit should come with an application chart for each fitting. If it doesn't, do they include a call center? I have numerous tools that I have called and they are able to tell me which fittings apply to each vehicle.

I tried to cross reference the adapter number from the procedure but it doesn't pull anything. I would see if one fits on and if not, just see if you can call the company for an application chart.

Just wanted to jump in. If there is no schrader valve, then you have to use a T at one point in the system. Basically, you are making a schrader valve to test the pressure. As he mentioned, the kit should indicate that type of set up. Most times a T is added at the fuel rail between the rail and the supply line.

It's just a thought.

Joe

You are correct. Sorry, I didn't look at the process that closely. At that point all you need to do is splice this gauge in the supply line. This kit may not have what you need to do this but I am sure any parts store will have a selection of fuel line fittings that you can make it using the fittings and then just rubber fuel line.

Does this make sense? If not I can try to make a diagram/drawing of what the set up will look like.

They are proud of their engineering ability and it shows here because a schrader valve is too easy.

You would need to find fittings that fit on the line and engine port. Take a look at the drawing. This is clearly just a rough idea of what it needs to do. The fuel pressure just needs to go through the gauge anyway it can.

Unfortunately there is no other way of confirming the sensor is accurate. The only option I think we have to to replace the sensor and see if it is any different. If it is then clearly that was the issue. If not then we have weak pressure. Clearly not desirable.

Yes It is. I just checked to see if there was a test for the sensor itself and surprisingly enough there was. This may not be easier then just replacing it but may be worth a try.