Need factory coolant temp sensor values
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From: Alexandria La.
Need factory coolant temp sensor values Please. Want to log the coolant temp with my LM1/LMA2 and I need the max values/voltages of the factory coolant temp sending unit to do it. I was just wondering if somone's already done this and might be able to post up a conversion table. It would be good to add to one of the sticky threads.
Thanks in advance.
Hummer.
Thanks in advance.
Hummer.
There's something funny about the LS1 coolant temp
sensor circuit; from what I read in the big green book,
the PCM switches bias current at some point in the
warmup to jump to a more accurate range. So straight
voltage may give you squirrely results, depending.
Straight resistance is another matter, that's consistent.
sensor circuit; from what I read in the big green book,
the PCM switches bias current at some point in the
warmup to jump to a more accurate range. So straight
voltage may give you squirrely results, depending.
Straight resistance is another matter, that's consistent.
Thread Starter
10 Second Club
iTrader: (19)
Joined: Feb 2004
Posts: 2,542
Likes: 2
From: Alexandria La.
Originally Posted by jimmyblue
There's something funny about the LS1 coolant temp
sensor circuit; from what I read in the big green book,
the PCM switches bias current at some point in the
warmup to jump to a more accurate range. So straight
voltage may give you squirrely results, depending.
Straight resistance is another matter, that's consistent.
sensor circuit; from what I read in the big green book,
the PCM switches bias current at some point in the
warmup to jump to a more accurate range. So straight
voltage may give you squirrely results, depending.
Straight resistance is another matter, that's consistent.
