Thanks for the reply. I did try connecting a wire from the block (which is connected to the neg of the battery) directly to the GND input on the DL1 and it made no difference, but will try directly from the battery to the logger this evening just be be 100% sure. I'm also wondering if there could be...

Hi Folks I wonder if anyone can assist me here. I have a DL1 and DASH2 installed in my Lexus V8 powered race car. All engine sensors are connected to the analogue inputs of the DL1 which then feeds the DASH via the serial connection. I am having some strange issues with the temp output. It was appea...