I just swapped an LDK into my 09 SS. Had low compression in one of the cylinders on the LNF. Got everything swapped only the car isn't reading coolant temperature or speed.
Has P0119-Engine Coolant Temperature sensor circut intermittent malfunction problem and
P0128 Coolant Thermostat Below Thermostat Regulating Temperature.
The fans are always on high whenever the key is on i'm sure as a fail safe whenever it throws the p0119. I replaced the coolant temp sensor on the ldk with the one off my lnf and still having the same issue. Does this narrow down my cause to the wire harness? If i'm not mistaken both the speed sensor and coolant temp sensor run from the same part of the harness. If so do i have to replace the entire harness or how can i go about fixing the issue? The fans don't turn off for a few minutes after i turn the car of and it's wreaking havoc on the battery lol.

 

The speed sensor on the trans and coolant temp are in the same area on the same harness. Maybe you switched the plugs by mistake. Coolant temp has a heat shield that goes over the plug. Good way to make sure

 

My guess is you pinched a wire or something putting it all back together.

 

First see if the coolant temp shows up correctly on a scanner. P0128 not only kicks on the fans, it also removes the temp from the info center.

 

 

haha knew it. its easy to make that mistake if ur not paying attention