Gen ii lt1lt4 gen iii 24x ls1ls6 and vortec truck engines gen iv 58x ls2 ls3 ls7 vortec and gen v lt ecotec engines. Gm ls engine gauges installation guide 2650 1563 00 rev.
Coolant Temperature Sender Third Generation F Body Message
Ls temp sensor wiring diagram. Looking for an affordable in stock plug and play wiring harness for your ls swap. Your harness may not have a pin in a location i have listed having a wire. Gm ls engine swap wiring you can do at home. If your harness connector does not fit your oil pressure sensor you can purchase sensor pn 12616646 or equivalent. Ls series vehicles fitted with this two wire sensor use the pcms data stream output to display the calculated engine coolant temperature. A this guide will cover all of the current gm lsc family of engines including but not limited to.
Simply cut the wire to the trans at the splice if this is the case. I have tried to list all possible wires that will show up 99 02. One is a three wire used on very early 1997 98 ls1 engines where the third wire usually green goes directly to the temperature gauge on the instrument panel. The pcm uses program code to read a fuel composition sensor that provides a digital pulsed signal based on the amount of ethanol in the fuel supply. The following lists the engine and vehicle side connections. This is a 3 wire.
The ls engines were introduced in the 97 corvette and followed in the 98. This is an optional connection and is not required for your control system to operate. Wires that are not highlighted remain un. Gm style intake air temperature sensor ready gm style engine temperature sensor ready 2 pressure sensor ready for fuel and oil 0 5v sensor fueltech ps150 connector 3x high output relays with fuses extra connector with 7 inputs and 8 outputs for generic use grommet for firewall dimensions in package. 14 x 11 x 14 weight. Ect with 38 inch 18 npt thread the most common ect sensor among gen i engines installs into a 38 inch 18 npt threaded hole in the engines intake manifold.
Psi sells standalone wiring harnesses for gm gen ii iii iv v lslt based engines and transmissions. All psi harnesses are made in the usa. The later engines use a two wire sensor and the pcm conditions the signal and a separate signal from the pcm goes to the gauge on the instrument cluster. 48l 53l 57l ls 1 version only 60l ls1 ls2 ls3 ls4 ls7 ls9 engines. In this video i show what sender sensor to use for your ls swap to run your gauge without a separate sender. Some harnesses there is a splice and this pin goes to coolant temp sensor and transmission.
This method uses a sender from a 1998 camaro or 1998 firebird.
Gallery of Ls Temp Sensor Wiring Diagram
