Dakota Digital Water Temp Sender

[analyte]

My LSx swap is running now, and I'm using the VHX dash setup from Dakota Digital. I'm curious if anyone else is seeing different water temperatures on the dash gauge than what the ECU is reading.

My stock water temp sender in the front driver head is what the ECU uses to engage the fans. They are set to come on at 205F and 210F respectively for fan 1 and 2. The DD VHX gauge is showing just over 220F when FAN 1 comes on. Is anyone else seeing this large of a delta between the two?

Thanks,
Kerry

[130fe]

Are you putting the DD sender in the pass head? If so, I suspect that the pass side sender is "down stream" in the coolant flow from the drivers head sender. I wouldn't worry about it if it isn't overheating and everything is working fine. I used their OBD2 BIM module and got the engine readings directly off of the PCM. Less wiring and hassle LOL

[analyte]

Are you putting the DD sender in the pass head? If so, I suspect that the pass side sender is "down stream" in the coolant flow from the drivers head sender. I wouldn't worry about it if it isn't overheating and everything is working fine. I used their OBD2 BIM module and got the engine readings directly off of the PCM. Less wiring and hassle LOL

I didn't think about it being downstream., but that makes sense. I'll adjust my warning setpoint to compensate and otherwise try not to worry about it.

Thanks,
Kerry

[Evldoer]

The car I built for my dad has a Dakota digital setup and also gave a different reading than the pcm. I don't remember exactly what it was but somewhere around 12 degrees or so but have not had any overheating issues in the 20,000 miles he has put on it since completion. What Chris says sounds about right.
It also gives a lower voltage reading than what the pcm reads for some odd reason.

[gray86hach]

The sensor in the pass head will read hotter.

As long as your ecu temps look good just know the dash is a little high..

Tim