Using a OBD2 splitter with a Predator

[rudedog]

This also goes for an intune or trinity unit as well. I have a gauge that uses the OBD2 port and was wondering if you can use the preditor/intune/trinity along side to data log. I would never trust a splitter to update a tune but was wondering what Daiblosport thinks

Has DS ever tested this?

[Mike_Levy]

Nope. The more stuff you run, the slower the refresh rate. If you split it the rate will be too slow to log or monitor worth a damn.

[rudedog]

Thanks for the reply Mike,

Is this something DS has tested? The reason I ask, is I have a hard time believing something that is connected in Parallel would cause the bus to slow down. Corrupted data maybe but adding latency, I'm not so sure.

Could these "splitters" be a serial device instead of a Parallel device?

Not that I don't believe you Mike, just trying to find the logic and science behind these devices (splitters). I've read a thread where service techs use a 8-12 way passive splitter to "read along" data with the teacher in real time when troubleshooting via the OBD II ports.

[Mike_Levy]

Its something you can test for yourself. Keep adding PIDs and then do a log. When you play it back, you'll notice that the data refreshes much less frequently the more things you log.