x2 > What John said.
The CTS (Coolant Temp SENSOR) has a two wire connector and gives the PCM engine temp info. On your 98 the ECT (Engine Coolant Temp SENDER) is a single Green wire that does not go to the PCM---It is what works the gauge.
Jeff
x2 > What John said.
The CTS (Coolant Temp SENSOR) has a two wire connector and gives the PCM engine temp info. On your 98 the ECT (Engine Coolant Temp SENDER) is a single Green wire that does not go to the PCM---It is what works the gauge.
Jeff
98 GMC RCSB 2wd, 100% internally stock 305, w/twin T-3 junkyard turbos,Ramjet intake w/42lb inj,12200411 PCM. 4675lbs w/me in it. Best time in 5 passes 13.01@110
Right on guys, Thanks for the clarification Jeff on which is which, lt1swap has the thermostat one labeled as ect. Thanks again.
Last edited by shmiet; 04-13-2013 at 09:08 AM.
Back Alley Motorsports 98 GMC
-5.3l LM7 bored to 5.7l Thompson Motorsports -72mm T4 Magnum Turbo
-TU1 Custom Grind cam(spec speed.inc) -799 heads
-.660" Trick Flow dual valve springs -Forged Probe Pistons 3.902" flat top
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