brino1

i cant figure out what the sensor is that is to the left of the coolant temp sensor on my 90 22re.any ideas??

mldave

if it's the one on the left it's the cold start injector time switch.

brino1

that figures,its the one thats $150!!

mldave

brino1,mines an 86 truck....probably different part # you can get them from a junkyard for $ 10-$ 25.

brino1

ill prolly go hunt for one tomorrow

mldave

You might have to have the same part number...think it's located on one of the flat surfaces.

abecedarian

Why are you wondering about it?

Does the truck start up when cold?

brino1

it starts,but only after cranking for about a min.starts fine when its warmed up or warm outside.the connector for that sensor is actually broke off.

stock93

Sorry to dig up an old thread but I broke that black sensor off the other day. I pulled it out and it looked like a probe so I figured a coolant temp sensor. I was just wondering if you could tell me what you ended up replacing?

abecedarian

That sensor is called "Cold Start Injector Time Switch".
It's purpose is to complete the circuit that causes the cold start injector to squirt fuel while you're cranking the engine... IF the engine is cold, as in below around 65F degrees.