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  #25  
Old 05-20-2014, 04:39 PM
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Re: Good OBD II App

By design, all CANBUS based systems are RIUP (Remove Insert Under Power) compatible unless a particular application design is poorly implemented. The OBD2 port is always powered. My Scanguage2 initializes when I plug it up with the ignition off. The ODB2 devices themselves may "sleep" or be powered down while the vehicle is off but the ODB2 bus is awake.

For those who aren't familiar, CANBUS based system typically use 4 wires. 2 are used for +/- communications and 2 for +/- bus power. The bus power is always hot although the devices may use switched power or the bus. A good automotive design would have most devices switched to prevent battery drain when off.
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  #26  
Old 05-20-2014, 04:45 PM
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Quote:
Originally Posted by ExcursionDiesel View Post
By design, all CANBUS based systems are RIUP (Remove Insert Under Power) compatible unless a particular application design is poorly implemented. The OBD2 port is always powered. My Scanguage2 initializes when I plug it up with the ignition off. The ODB2 devices themselves may "sleep" or be powered down while the vehicle is off but the ODB2 bus is awake.

For those who aren't familiar, CANBUS based system typically use 4 wires. 2 are used for +/- communications and 2 for +/- bus power. The bus power is always hot although the devices may use switched power or the bus. A good automotive design would have most devices switched to prevent battery drain when off.
Thanks for the info, a hangover from my LS1 days.
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  #27  
Old 05-21-2014, 06:05 AM
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Re: Good OBD II App

Report;

I tried it in, I tried it out.

I tried letting it find itself, I tried forcing it.

Time for a new one.

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  #28  
Old 05-21-2014, 03:26 PM
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Re: Good OBD II App

Yes, I have read that some adapters are less reliable than others. I am using the one that someone on here recommended. It was ordered from Amazon for 24 bucks.

BAFX Bluetooth ODB2 Scan Tool

http://www.amazon.com/gp/aw/d/B005NL...A2VZTJP6N0Z6QL
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  #29  
Old 05-21-2014, 07:04 PM
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Re: Good OBD II App

Just bought the BAFX OBDII adapter and a 7" Android tablet to go with it.
Does the Torque app show EGT, turbo boost, injector pressures and other Diesel oriented info for our JGC's??? If not, can anyone recommend another app?
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  #30  
Old 05-21-2014, 07:24 PM
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Re: Good OBD II App

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Originally Posted by philbytx View Post
Just bought the BAFX OBDII adapter and a 7" Android tablet to go with it.
Does the Torque app show EGT, turbo boost, injector pressures and other Diesel oriented info for our JGC's??? If not, can anyone recommend another app?
Yes to Boost and EGT for sure. The others I haven't tried. It has a pretty exhaustive list of supported PIDs.
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  #31  
Old 05-22-2014, 09:35 PM
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Re: Good OBD II App

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Originally Posted by ExcursionDiesel View Post
Yes to Boost and EGT for sure. The others I haven't tried. It has a pretty exhaustive list of supported PIDs.
Does the BAFX adapter show the EGT's in the Jeep Grand Diesel ?
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  #32  
Old 05-23-2014, 08:07 PM
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Re: Good OBD II App

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Originally Posted by Highway View Post
Does the BAFX adapter show the EGT's in the Jeep Grand Diesel ?
Yes, EGT and CAT Temp are both supported using the full Torque app on Android.
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  #33  
Old 05-23-2014, 08:18 PM
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Re: Good OBD II App

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Originally Posted by ExcursionDiesel View Post
Yes, EGT and CAT Temp are both supported using the full Torque app on Android.
Thanks for that.

I may have to get one of these !!

Do you also need a sensor/probe attached to the exhaust to monitor the EGT's when using the adapter on a 2012 model ?
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  #34  
Old 05-26-2014, 06:39 AM
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Re: Good OBD II App

Got my new $12 adapter today the blue tooth version


V1 5 ELM327 OBD2 Odbii Wifi CAN BUS Scanner CAR FOR Iphone 5s 4s Ipad Laptop | eBay

NO MORE SHIFTER ALARM.

Let the logging begin

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  #35  
Old 05-26-2014, 10:35 AM
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Re: Good OBD II App

Quote:
Originally Posted by Highway View Post
Thanks for that.

I may have to get one of these !!

Do you also need a sensor/probe attached to the exhaust to monitor the EGT's when using the adapter on a 2012 model ?
Highway, I don't know if EGT sensors are on the 2012. I suspect they are...at least CAT temp.. If you are an Android user, less than 30 USD gets you the Torque app and an OBD2 adapter. If you only use it to diagnose and reset a Check Engine Light, you've saved money vs. buying a diagnostic scanner.
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  #36  
Old 05-29-2014, 02:57 AM
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Re: Good OBD II App

Quote:
Originally Posted by ExcursionDiesel View Post
Highway, I don't know if EGT sensors are on the 2012. I suspect they are...at least CAT temp.. If you are an Android user, less than 30 USD gets you the Torque app and an OBD2 adapter. If you only use it to diagnose and reset a Check Engine Light, you've saved money vs. buying a diagnostic scanner.
I will have to check out if the sensors are on the 2012 model.

Does the CAT sensor heat give you a good indication of the EGT's while driving ?
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