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Old 01-28-2019, 06:55 PM   #21
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Regarding pyrometers...


be sure to use the numbers (temps) that correspond to where the sensor is located.


Many folks put them in the manifold to take the highest possible temp readings.


Others (including myself) installed the sending unit in the downpipe portion of the exhaust, within 6" behind the turbo. I put mine there for two reasons. First...much easier to install without risking damage to the turbo. And second...that is where Cummins (my engine maker) recommends putting the sender and all of their numbers are based on that location.


Just do a little homework then decide for yourself where to put it and which set of numbers to go by.
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Old 06-12-2019, 07:32 AM   #22
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Old 01-14-2020, 11:21 PM   #23
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What type of pyrometer is best and can it be hooked up to the ecm or do you need a separate gauge?
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Old 01-14-2020, 11:39 PM   #24
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in a semi-related note, I'm trying to simply connect my wireless hotspot OBD to my bus...

would a simple adapter like the one the OP mentioned work for my needs? is it called a 9pin to obd adapter???

I don't necessarily need the bluefire, scanguage and diy guage features at this time
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Old 01-15-2020, 04:38 AM   #25
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The protocols are different, a 9 pin to obd2 adapter won’t work unless your adapter is designed to read J1708 or J1939 data, thus why bluefire exists.. the J1708 hardware layer is different and ok a 3126 that’s where most of your data is...
Technically hardware layer for J1939 and OBD2 are the same.. an ELM337 chip device could read it however I’ve not seen any android software that can display 1939 from an ELM327 Device..

To the last question, VDO makes a CAN capable gauge setup with a pyro but no idea if bluefire would display it. BlueFire seems to only display certain parameters by default.. for instance they won’t display j1708 PID164 I’m an international but yet I wrote that PID into the software then it would..
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Old 01-15-2020, 04:41 AM   #26
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As for separate pyro there are lots, I’ll have to see what mine is. The trick to any pyro is installing the sensor as close to the engine as you can get and always pre turbo
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Old 01-15-2020, 02:11 PM   #27
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Quote:
Originally Posted by cadillackid View Post
The protocols are different, a 9 pin to obd2 adapter wonít work unless your adapter is designed to read J1708 or J1939 data, thus why bluefire exists.. the J1708 hardware layer is different and ok a 3126 thatís where most of your data is...
Christopher
I understand that, but if I'm not mistaken, I would only need the bus to power my obd2 device, not to 'talk' to it necessarily.

In that scenario, would a 9 pin to obd2 adaptor work? I guess I could always get one and try and if not return it...just curious if anyone had my particular situation before.

thanks again
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Old 01-15-2020, 03:02 PM   #28
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The goal is just for power but no comms?
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Old 01-15-2020, 03:14 PM   #29
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Yes, just power
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Old 01-15-2020, 03:28 PM   #30
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I’m thinking an adapter will do the job. I was thinking you were going to read data
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Old 01-16-2020, 12:43 AM   #31
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MarkyDee any updates on your set up?
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