Doing what Gary suggested is the easiest was to solve the problem. The ThermTS is located it a really hard to get at place ...under the #4 intake manifold. They usually don't go bad, but the wiring to it could be bad. When the temp of the coolant is below 60F the TS fires the Cold Start injector. Unless you really want to have your 80 in "original" condition, I wouldn't go thru the trouble of pulling of the intake manifold to get at the ThermTS...a hard wired toggle switch inside the car serves the same purpose. Think of it as a manual choke like you had to pull to get a carburated car to start.

I did this fix on my old 75...on its B20 engine the Therm TS was located in an easy to get to location, but right near the oil filter. I broke the contacts on two of them with an oil filter wrench, got tired of paying for a new ones and just hard wired the ColdStart INjector with a switch mounted in center console...there are several blanks available there. Drove it that way for years.


Why oh why don't they make 240s anymore :(
75 245(RIP), 80 244 M45 226K, 87 245 M47 172K