BMW M3 Forum (E90 E92) - View Single Post

WarrantyTracker · 06-02-2014, 09:54 AM

A couple of questions lately on compatible OBDII sensors.

I have been trying to get the app running on an IPod Touch version 5 for a while now. Based on a referral from the guys over in the Engine Tech forum on OBDII readers for the BMWhat code reader app and Apple products, I got this one: http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

It connected to the IPod (after going into settings and finding it as a wi-fi network). It sort of worked in Harry's Lap Timer but not great. The gear selector overlay and RPM overlay worked pretty accurately, but the throttle overlay was way off. Harry's was giving me a warning message that the OBDII refresh rate (1Hz) was too low for much accuracy in the data.

I searched around, but I have not been able to find any Internet reports of an inexpensive, uncabled OBDII connection that works well with HLT for Apple. So I spent the $85 to get the PLX Kiwi 2 (http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1). It also hooked up with the IPod through the settings menu options for wifi; I had to enter some specific IP and router address information in the settings menu the first time (comes with the instructions for the Kiwi unit), and the IPod saved it.

So the PLX works well and the data rate is more like 5Hz. I am now getting good throttle display overlay as well as RPM and gear selection. I don't seem to be able to get brake input data, but I've heard the E92 M3 OBDII port just doesn't supply the data. Not sure if that's true, but it's what I heard.

For GPS I'm using the XPS150A (http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1) which connects to the IPod very well through bluetooth. Also $85, by coincidence. It's transmitting position data 5x per second (5Hz), which is plenty for smooth data and 5 times the IPod GPS' native rate. It comes with a rubber pad that sticks the unit to the rear side window, and you can mount the IPod any where you want in the car -- you still get clear GPS data.

The version 5 has plenty of processing power to perform the overlay function fairly rapidly. As for storage, I'm using the big one (64G). You might be able to get away with a 16G. Two 25-minute sessions plus the HLT software ate about 6.5 gigs, so there may be enough space there to handle a 4-session day between offloads to a laptop. But you will max it out, leaving no room for other photos, vids, or tunes.

06-02-2014, 09:54 AM	#125
WarrantyTracker Track? What Track? I was just riding along . . . 46 Rep 694 Posts Drives: Alpine White E92 M3 Join Date: Apr 2012 Location: An Undisclosed Location iTrader: (1)	A couple of questions lately on compatible OBDII sensors. I have been trying to get the app running on an IPod Touch version 5 for a while now. Based on a referral from the guys over in the Engine Tech forum on OBDII readers for the BMWhat code reader app and Apple products, I got this one: http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1 It connected to the IPod (after going into settings and finding it as a wi-fi network). It sort of worked in Harry's Lap Timer but not great. The gear selector overlay and RPM overlay worked pretty accurately, but the throttle overlay was way off. Harry's was giving me a warning message that the OBDII refresh rate (1Hz) was too low for much accuracy in the data. I searched around, but I have not been able to find any Internet reports of an inexpensive, uncabled OBDII connection that works well with HLT for Apple. So I spent the $85 to get the PLX Kiwi 2 (http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1). It also hooked up with the IPod through the settings menu options for wifi; I had to enter some specific IP and router address information in the settings menu the first time (comes with the instructions for the Kiwi unit), and the IPod saved it. So the PLX works well and the data rate is more like 5Hz. I am now getting good throttle display overlay as well as RPM and gear selection. I don't seem to be able to get brake input data, but I've heard the E92 M3 OBDII port just doesn't supply the data. Not sure if that's true, but it's what I heard. For GPS I'm using the XPS150A (http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1) which connects to the IPod very well through bluetooth. Also $85, by coincidence. It's transmitting position data 5x per second (5Hz), which is plenty for smooth data and 5 times the IPod GPS' native rate. It comes with a rubber pad that sticks the unit to the rear side window, and you can mount the IPod any where you want in the car -- you still get clear GPS data. The version 5 has plenty of processing power to perform the overlay function fairly rapidly. As for storage, I'm using the big one (64G). You might be able to get away with a 16G. Two 25-minute sessions plus the HLT software ate about 6.5 gigs, so there may be enough space there to handle a 4-session day between offloads to a laptop. But you will max it out, leaving no room for other photos, vids, or tunes.
	Appreciate 0 Quote