Hey all, this has been an ongoing problems with my 92. I recently just disabled it in my ECMLink which solved my erratic idle and hard starts, but when it is enabled, the coolant SOMETIMES hits the proper temperature, but for the most part sits at anywhere between -40F and 60F, and then I get a Coolant Temp Sensor Circuit Malfunction DTC through Link.

Now, I've replaced it once with a GM Sensor, and I've tried some aftermarket sensor, which didn't have a plug in, so you have to use clips, and it seems to still be an issue. I was wondering if there is any actual circuit board for the coolant temp sensor, or if it's just the 2 wires?

If it's just the 2 wires, I suppose I need to just find an OEM sensor.