I would like to install an electric fuel pressure gauge and install two senders on a switch to determine the filter(s) condition. Can this be done, and if so, which brands have the white face? Where is a good place to get the spare sender?

 

My autometer is electric and it's plugged in to the top of the canister via a geno's chrome filter cap!!

 

Autometer Phantom matches fairly close. Been thinking about doing the same thing for my commander. Three way switch. Fuel - prefilter, fuel post filter, and oil pressure. ( losing the Autometer ) . we'll see. Seems kinda counter productive though. May just add the other fuel pressure sender and a switch.

 

It looks like they are the only game in town except for Pricol, and they are harder to come by.

I would like know if someone has done the multi sensor route with the Phatom, and if a double or single pole switch was required?

 

Made a call to Autometer tech. support and he said that it will work and only the purple signal return wire needs to be switched. Thus a single pole switch should work.

 

You really don't need it. Just put the sensor after the filter. Replace filters with new units and you will have a solid base line of what your pressure is with new filters. When your pressure drops 1 to 2 psi it is time to change....The only problem is if you have mulitple filters. Say, the stock filter and a 2 Micron filter, and a water seperator filter. Most people just run a mechanical gauge at each filter to judge when a filter change is needed.

 

It may be overkill, but I like the flexibility of measuring a couple of fuel locations and maybe oil pressure as well. If the OEM oil gauge is like the coolant gauge, I'd want to know the real pressure. My Outlook has shown me how inaccurate the coolant gauge really is, basically a glorified idiot light.

Do most folks permanently mount the mechanical gauges or use something like a shraeder valve for spot checks?

 

Yes...the oil guage is a guestimated figure at best! Tell me about your Outlook......where does it read coolant?

 

There is no add on sensor, so I believe that it is through the factory engine sensors via the OBD II connection. The interesting thing on my factory gauge is that 40 to 50 degrees comprises the majority of the needle swing from left to center. Basically, it starts to move off the left at around 145. The outlook generally reads 201 in cold weather unless pushed and it will go up to 207. In the summer it stays closer to 207 all the time. On mine, 200 is just left of center and 207 is a bit to the right if center. More movement than I would intuitively consider normal for that amount of change. It is also fairly slow to react, but not as slow as the gas gauge.

 

That's what I was thinking.....your outlook is seeing the same input as the ecm/pcm and they tell the guage what to read. I'd be curious to what an added on sender and guage would read.

 

I would too, but it seems that the direct computer information is pretty good in general and the gauges are dummied up for the masses to show us what they want us to see.

 

My thoughts exactly. The oil pressure is a prime example. From what my Autometer reads compared to the factory guage, I could see where some people wouldn't want to see that much of a change, but I wanna know what it really is!

 

My outlook shows 20-30* changes when pulling a grade loaded,while the factory gauge barely moves if any.Shows me that the factory gauge is calibrated to tight for small increments.The ecm is sending out a variable signal That the outlook can display more accurately.
Tejasdge you have a pm.

 

Yes....from what I have read, the buffers in the instrument cluster software only start to show thing rising when there is already too much trouble! I can't quote the page exactly, but in the owners manual, it says that the guages are a calculated figure of what most drivers would "expect" to see!