Anyone do this? MSII ver. 357 with relay board. My Cylinder head temp sensor would not move fast enough and I could not get it to register in the proper range so I figured I would use a GM IAT sensor mounted in the hot airflow from the cylinder head. Unfortunately, it registers wrong (hoping I can adjust the resistance range for that) but more troublesome is that the reading fluctuates very quickly almost 100 degress F. sending it into and out of WUE. Is this because of the the mating of this type of sensor with the MS circuitry or, is there something wrong with sensor/settings? The cht I replaced used the same shielded wiring and was steady in its readings. Any ideas?
Thanks,
Paul
GM IAT as CLT for aircooled VW?
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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
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Re: GM IAT as CLT for aircooled VW?
I'm using a GM CLT sensor in the airflow from #2.
Steamer
MSIIv3 on a 2332 VW
T25 Intercooled Turbo
JAW WBO2, fuel and spark control
MSIIv3 on a 2332 VW
T25 Intercooled Turbo
JAW WBO2, fuel and spark control
Re: GM IAT as CLT for aircooled VW?
Steamer,
GM CLT NOT a GM IAT? Works well? Any reprogramming of the resistance ranges?
Thanks,
Paul
GM CLT NOT a GM IAT? Works well? Any reprogramming of the resistance ranges?
Thanks,
Paul
Re: GM IAT as CLT for aircooled VW?
CB performance sells a gm style CHT sensor that they had custom made to screw in to a late model air cooled VW head. If you use it you don't have to change any bias resistors, and it is fast to react.
here is a link:
http://www.cbperformance.com/catalog.asp?ProductID=333 check out part number 7132.
They are ready to help, and the resistance for this is 185 Ohms at 210F, 3400 at 70F, and 100,700 at -40.
here is a link:
http://www.cbperformance.com/catalog.asp?ProductID=333 check out part number 7132.
They are ready to help, and the resistance for this is 185 Ohms at 210F, 3400 at 70F, and 100,700 at -40.
Laptops and offroading don't mix 
2108cc Turbo VW SandrailMSII, EDIS, Custom header, intake, fuel rails, plenum, H20 intercooler & moreRead my success story
Re: GM IAT as CLT for aircooled VW?
It's a stock GM CLT sensor. I don't think it required any changes to MegaTune, but it's been a few years and I don't remember exactly. I mounted it to the tins under #2 in the airflow. Seems to work fine.
Steamer
MSIIv3 on a 2332 VW
T25 Intercooled Turbo
JAW WBO2, fuel and spark control
MSIIv3 on a 2332 VW
T25 Intercooled Turbo
JAW WBO2, fuel and spark control
Re: GM IAT as CLT for aircooled VW?
Thanks guys.