Yes I know EasyTherm can't do it, but I figure the people reading here will be able to point me in the right direction. My coolant sensor (Bosch) is NTC, no problem, but my IAT sensor is a Japanese PTC sensor. For something like 6 years (second group buy) I've been using GM sensors on my Audi, but with a recent few changes I've got my heart set on using stock sensors.
I've looked arround for a few days now and can't really find much info on exactly what I need to do. I'm sure it's out there and I just can't find it. Could somebody point me in the right direction please?
P.S. v2.2 board, MS-I, MSnS-E firmware.
PTC sensor config
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
PTC sensor config
Cody Forbes
http://www.5000tq.com
'86 Audi 5000TQ, '86 Audi 5000TQ
'87 Audi 5000TQ391whp
'85 Porsche 930, '86 Porsche 944/LT1370whp
http://www.5000tq.com
'86 Audi 5000TQ, '86 Audi 5000TQ
'87 Audi 5000TQ391whp
'85 Porsche 930, '86 Porsche 944/LT1370whp
I (crudely) plotted my sensor readings:
Going is up resistance in thousands of ohms, going right is temp. Not plotted is the last reading of the CLT sensor I took @ 200 degrees F.
CLT:
100ohm = 203*F
260ohm = 140*F
400ohm = 120*F
470ohm = 110*F
687ohm = 92*F
784ohm = 85*F
1394ohm = 53*F
1728ohm = 43*F
IAT:
547ohm = 128*F
530ohm = 112*F
513ohm = 91*F
508ohm = 86*F
497ohm = 73*F
493ohm = 68*F
469ohm = 40*F
Going is up resistance in thousands of ohms, going right is temp. Not plotted is the last reading of the CLT sensor I took @ 200 degrees F.
CLT:
100ohm = 203*F
260ohm = 140*F
400ohm = 120*F
470ohm = 110*F
687ohm = 92*F
784ohm = 85*F
1394ohm = 53*F
1728ohm = 43*F
IAT:
547ohm = 128*F
530ohm = 112*F
513ohm = 91*F
508ohm = 86*F
497ohm = 73*F
493ohm = 68*F
469ohm = 40*F
Cody Forbes
http://www.5000tq.com
'86 Audi 5000TQ, '86 Audi 5000TQ
'87 Audi 5000TQ391whp
'85 Porsche 930, '86 Porsche 944/LT1370whp
http://www.5000tq.com
'86 Audi 5000TQ, '86 Audi 5000TQ
'87 Audi 5000TQ391whp
'85 Porsche 930, '86 Porsche 944/LT1370whp