The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - LS Sensors

BR3W CITY · 11-11-2018, 03:07 PM

Flex fuel started late genIII, I believe after the trucks all went returnless fuel. Its not a necessary component, unless you actually want to use flex fueling.

The oil pressure sensors on Gen III only trigger dummy lights and cannot affect the running of the motor.

Gen IV has a functioning PID for oil pressure and can log an actual value.

GenIII also has an oil level sensor which doesn't actually read level , only a make or break point. Completely useless.

Easiest way to do this BTW is just download the factory service manual, hit CTRL+F and then look at every result for "sensor".

11-11-2018, 03:07 PM	#7
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: LS Sensors - what they do and where they are Flex fuel started late genIII, I believe after the trucks all went returnless fuel. Its not a necessary component, unless you actually want to use flex fueling. The oil pressure sensors on Gen III only trigger dummy lights and cannot affect the running of the motor. Gen IV has a functioning PID for oil pressure and can log an actual value. GenIII also has an oil level sensor which doesn't actually read level , only a make or break point. Completely useless. Easiest way to do this BTW is just download the factory service manual, hit CTRL+F and then look at every result for "sensor". __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD