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I have an early 1995 F350 7.3 DIT

I can feel and hear a miss, though it runs pretty well and it's been this way since I got it a year ago. Now that it's getting chilly at night, the truck starts a little hard and smokes when it starts up, so I'd like to give it a little love -- Hopefully find a bad injector to fix the miss and some glow plugs that are 20 years and 140k miles newer would probably help.

So my question is has anyone done a power balance / cylinder contribution / drop test using an android phone and wireless obd2 interface device? Is there an app that does it?

I have the Torque Pro app, but haven't figured out how to do it.

Do I have to spring for a more expensive diagnostic tool or manually unplug injectors to get a power balance test?

Also, I notice my temperatures are out of whack in the Torque Pro app -- oil is about 50* coolant is 212* and air intake is -40* I haven't played with this enough to verify all those numbers-- oil could be 50*, but coolant is not 212 and air is not -40

So in light of this data and the OEM temp gauge in the dash that shows almost nothing, which in my limited experience is normal, I ordered a mechanical temp gage to swap in like I did on my old '94 IDI. But now that I think about it, I wonder if it will mess up anything in the truck's brain if I remove the electrical temp sensor and put in a mechanical one? Does it matter which one I go for --the gage sensor or the idiot light sensor? This worked great on my IDI, but that thing has no brain.

Thanks in advance!
 

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Engine coolant temp is not used by the PCM (Engine Oil Temp or EOT is), so you should be able to do the same as your IDI. Here's a nice thread on the TorquePro: "Torque App for OBS Android". Have fun reading! Cheers!
 

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There is no coolant temp input to the PCM. So you won't be able to read it with your Android device. If you're replacing the sensor for the coolant temp gauge in the dash, it has no effect on the engine's operation.
 
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