Fuel pressure sensor

[deancollins]

Hi guys,

do 04 Mach 1's have a fuel pressure sensor already on the car like the Cobras did?

Thinking about getting an aeroforce interceptor gauge and was not sure if I would the sensor kit too?

Thanks.

[DSG2003Mach1]

yes the Machs have a factory fuel rail pressure sensor

[deancollins]

oh really!?

so should get the reading from the interceptor OBD connection?

[DSG2003Mach1]

yes it should.

[deancollins]

There is another thread you posted in about there being a difference between the reading on the interceptor and an analogue gauge I saw?

[DSG2003Mach1]

hard to say without seeing the thread. I know there are a lot of PIDs for fuel pressure, some of them are pressure drop, some of them are deltas etc... could be as simple as comparing the wrong PIDs

[deancollins]

It was this one,

http://www.mach1registry.org/forums/...d.php?t=132095

Where the reading on is 30psi on the mechanical gauge and 40psi on the electrical sensor but both are correct?

[deancollins]

The reading I am getting seems to be between 39 and 41 any time, ie engine off, engine idle and engine under acceleration.

Really not too sure what I should expect to see with fuel pressure readings, just thought it differ between those 3 states alot more than what it does.

Any ideas?

[DSG2003Mach1]

would help to know exactly what PID you're reading as there are several fuel pressure related ones and they read different ways for different reasons.

[deancollins]

Oh OK.

From memory it was just the first fuel pressure one that was in the list.

How can I identify it?

[DSG2003Mach1]

Go back into setup and tell us what they're calling it