The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Two ECT Sensors LS1 Where is the other one?

Corveric · 02-04-2010, 01:15 AM

So perhaps, since we have a newer wiring harness and an older engine and the repair is to replace the current 2 wire sensor in the head with a 3 wire sensor and splice our stray ECT wire from the back of the engine into it. That would certainly answer the issue. I have seen that there are two and three wire sensors but I was not aware that the extra wire was for the gauge.
I will try it and post the results.
Thanks for the help VetteVet, a small piece of missing info but it may be the key.

02-04-2010, 01:15 AM	#3
Corveric Registered User Join Date: Oct 2008 Location: Langley, BC Canada Posts: 5	Re: Two ECT Sensors LS1 Where is the other one? So perhaps, since we have a newer wiring harness and an older engine and the repair is to replace the current 2 wire sensor in the head with a 3 wire sensor and splice our stray ECT wire from the back of the engine into it. That would certainly answer the issue. I have seen that there are two and three wire sensors but I was not aware that the extra wire was for the gauge. I will try it and post the results. Thanks for the help VetteVet, a small piece of missing info but it may be the key.