OBD2 / CAN adapter

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krbjmpr

krbjmpr

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I dont use a splitter.

It does stay plugged in except when have to get inspected. Tried to use a splitter then, and was advised was a no-no.

I used a single MX on an F150 for a few years, never a problem. When was driving a Camry, found a cabled elm27 or similar worked great.

Since bought my Yukon, it tears up MX+. I have had the thought that when alternator does its "high charge" of 14.7 to 14.9, if that might be tearing something up. To combat, I have kicked around the idea of using a buck converter to under hood fusebox. That is, until I saw price tag of one that can support halogen headlights, engine fan, AC fan, windows, rear ac fan, etc. Yukon is stock SLT.

Debating on LFP batteries after a Big 5 upgrade. Would need to knock down alternator peak volts. If my target LFP charge termination is 3.45 per cell, then max out on alternator should be 13.8, 14vdc tops. Maybe that would resolve burning up MX+ as well.

I did hear back from OBDLink today. Engineer is going to see what results from previous one I sent in were. But, he does indicate that it appears firmware is pooched, and firmware recovery sees adapter, but can't go any further.
 
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good stuff.. yeah I see they say it powers down, I don't know. Just seems like if he's killing them, and it's easy to do. I'd just make the obd2 port switched. mine is like that. no worries when I forget to unplug stuff.

I don't know how you guys can have two things plugged in at once. I never can. if I use the splitter one of the other gets glitches data and faults out. I end up using my splitter use as a right angle extender cable.

weird.
It may be the splitter. I'm sure they're all not created equal. This is the one I use. Says guaranteed to work with all aftermarket devices and OBD scan tools.

I've left my AutoSync plugged in and just unplugged the MX+ from the under dash port when I take it in to get emissions inspection and haven't had a problem.

 

j91z28d1

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It may be the splitter. I'm sure they're all not created equal. This is the one I use. Says guaranteed to work with all aftermarket devices and OBD scan tools.

I've left my AutoSync plugged in and just unplugged the MX+ from the under dash port when I take it in to get emissions inspection and haven't had a problem.



I might have to pick one up and try it.
 

j91z28d1

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I dont use a splitter.

It does stay plugged in except when have to get inspected. Tried to use a splitter then, and was advised was a no-no.

I used a single MX on an F150 for a few years, never a problem. When was driving a Camry, found a cabled elm27 or similar worked great.

Since bought my Yukon, it tears up MX+. I have had the thought that when alternator does its "high charge" of 14.7 to 14.9, if that might be tearing something up. To combat, I have kicked around the idea of using a buck converter to under hood fusebox. That is, until I saw price tag of one that can support halogen headlights, engine fan, AC fan, windows, rear ac fan, etc. Yukon is stock SLT.

Debating on LFP batteries after a Big 5 upgrade. Would need to knock down alternator peak volts. If my target LFP charge termination is 3.45 per cell, then max out on alternator should be 13.8, 14vdc tops. Maybe that would resolve burning up MX+ as well.

I did hear back from OBDLink today. Engineer is going to see what results from previous one I sent in were. But, he does indicate that it appears firmware is pooched, and firmware recovery sees adapter, but can't go any further.


you atl voltage is adjustable with a frequency box. it's done on motor swaps where the ecm doesn't control it. little 10$ box on ebay you wire into the 2 wire connector.

most likely you can turn the fault code off with hptuners in the ecm and you'll be good.

then again hpt will let you adjust the alt control. I have hpt but not one of these trucks to check myself. mine doesn't have an alt but I read you can. not sure you can flat line the voltage thou.
 
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krbjmpr

krbjmpr

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Wasnt able to find what you mentioned. Do you have a link to such device?

HPTuner would be nice, but need to address issue of failing adapter first.

OBDLink has offered an OBDLink EX, but it doesnt do SW-CAN and I declined. The *EX is cabled, not BT.

Still looking for cabled solution to support SWCan, and MSCan (for my Ford when project is complete).
 

j91z28d1

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all the info is in here.



multi ways to do it but cheapest being ebay.. best being adjust the ecm.

 

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