Karl
I have the Grand Rapids and have had a similar problem with some very
strange readings. The symptoms were that half the readings produced by the
unit were OK but the other half were all over the place.
I contacted Grand Rapids and they were helpful but could not offer a
particular explanation. After a lot of investigation, including pulling out
the entire unit, I found that all it was a broken cylinder head temp probe.
Once this was disconnected everything else went back to normal. With the
probe replaced everything was OK.
So my recommendation is to disconnect the sensors one at a time until you
find the duff one
Ian Rickard G-IANI XS Trigear, 300hours
Europa Club Mods Specialist
e-mail g-iani@ntlworld.com
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