Both sensors are active on the dash read out. As far as i can tell tho the signal is not reaching the ecu. Both read in the negatives on the scanner channel list. Coolant for instance in reading -38* while the dash read out for coolant temp climbs and sits at normal operating temp as if nothing is wrong. What could cause this or where do I need to look for the break in communication?
First try removing the channel, then re-poll for supported parameters in the scanner and then re-add the channel.
If you get the same thing, then the ECT sensor could be bad, it will give a reading to both the dash and computer I think.
Oil pressure doesn't work on a GEN 3 as far as I know. It seems to always read negative.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
found it. two engine wiring harnesses in the engine bay. now we have ecu coolant signal and no dash but its running lots better. Close or delete
Thanx for the help though
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