Head Temp Sensor Effects

pbanders · Post by **pbanders** » Thu Apr 25, 2002 11:27 am

I just completed a pSpice simulation analysis of the head temp sensor circuit in the ECU:
http://members.rennlist.com/pbanders/ecu.htm#CTC

The results are pretty interesting. They show that the head temp sensor's effect on mixture is fixed past temperatures of around 210 F or so (as you would expect). They also show that there are significant differences in the warm-up characteristics of the two ECU's I analyzed (037 and 052).

I'll be adding data on using ballast resistance and comparing the odd 0 280 130 017 sensor later.
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Brad Anders
[email protected] http://members.rennlist.com/pbanders

pbanders · Post by **pbanders** » Thu Apr 25, 2002 11:56 am

Whoops, corrected an error in the 052 plot due to a misinterpretation of a note on the schematic. Differences are still there between the 037, but not as dramatic as before. Refresh your browser if you've looked at my page.

Brad Anders

PapaG · Post by **PapaG** » Thu Apr 25, 2002 1:59 pm

More cool stuff to read..
Thanks Brad!!!!

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Richard
Lost in Texas
68 Chopped Top Squareback (wasserboxer conversion)
69 Fastback Auto (MegaSquirt EFI)