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Looking good.

One thing I was told by a trans guy is that the temp sensor if fitted in the cooler lines should probably be fitted in the return line as apparently the fluid coming out of the box is coming from the converter which can be significantly hotter than the fluid in the rest of the transmission/pan. I made this mistake with a trans temp gauge I had fitted on our old VS, on some occasions when going from cruising to high load the temps would rise dramatically. Would regularly see temps above 200°F.

Dam, thats looking like one very neat build, well done :thumbup:very well thought out and planned

VL400 wrote:
Flex sensor mounted near the tank and will plumbed in to the return line. The logger reads this and my innovate gauges (the serial MTS stream) using an add-on unit.

flex.jpg

Very elegant build!

Is that the ALDL Logger reading the flex sender? I thought they were a freq output?

immortality wrote:One thing I was told by a trans guy is that the temp sensor if fitted in the cooler lines should probably be fitted in the return line as apparently the fluid coming out of the box is coming from the converter which can be significantly hotter than the fluid in the rest of the transmission/pan.

Yeah I was in two minds as to where to measure the temp, in the end went with what Toyota use and measure the hot side. GM measure the pan temp for the 4L60E. So I made the wiring long enough so I can easily add another fitting on the return side to get more of an idea of pan temp.

ejukated wrote:Is that the ALDL Logger reading the flex sender? I thought they were a freq output?

Yep its a square wave PWM signal giving ethanol content (freq) and fuel temperature (pulse width). I made a small unit up that reads this signal, the innovate MTS data stream (wideband, oil and temp gauges I have send out digital data), and a couple of extra analog inputs. This can be connected to the logger via I2C interface for no impact on logging speed or on other vehicles using ALDL (so this box becomes another bus device you can poll for its info). If there is interest in them I have 9 more boards that can be assembled.

ejukated wrote:Is that the ALDL Logger reading the flex sender? I thought they were a freq output?

VL400 wrote: Yep its a square wave PWM signal giving ethanol content (freq) and fuel temperature (pulse width). I made a small unit up that reads this signal, the innovate MTS data stream (wideband, oil and temp gauges I have send out digital data), and a couple of extra analog inputs. This can be connected to the logger via I2C interface for no impact on logging speed or on other vehicles using ALDL (so this box becomes another bus device you can poll for its info). If there is interest in them I have 9 more boards that can be assembled.

Very interested

Any chance of including the Techedge 2.0 stream? It's documented here http://wbo2.com/sw/logtech.htm

Biggvl wrote:Dam, thats looking like one very neat build, well done :thumbup:very well thought out and planned

yep agree, loving the build!

this is what i reckon

haha, wait till the rest of the sensors go on!

And in other news, a Ford part went on last week too...

ejukated wrote:Very interested

Any chance of including the Techedge 2.0 stream? It's documented here http://wbo2.com/sw/logtech.htm

It wont read the techedge stream as it needs to request data first. I didnt need to request anything for the MTS stream (you just sit at the end of the device chain and read data off) so it cannot transmit.

Out of interest what will you be doing with the data from the flex sensor? It's going to the logger is that right?