MSefi.com read only forum (Jan.15,2018)

I did some checking and found a couple of broken solder joins in my wiring loom between the ECU and the relay board.
Once resoldered everything now seems to be working well, thanks for your help

I will check the wiring to and from the CLT sender and the relay board, but as I bought a Pre-assembled board MS II where should I start to check the ECU circuit?

After checkingthe resistances of the CLT and MAt sensors I checked the voltages against the Vref and across the terminals of the sender units. This was done across the terminal block of the relay board.
Using the terminal block pin numbers I was able to measure the following.
#12 (Vref) to #16 (MAT ...

I am having the same problem with my CLT sensor.
It's a standard GM sender unit and I have also checked the resistances at near freezing(ice water) and at approx 30°C and the resistances are close to what they should be. I have even compared the resistances to the Manifold Air Temperature sensor ...