99 ws6 temp gauge issues. Pcm correct
Thread Starter
Joined: May 2012
Posts: 1,796
Likes: 59
From: Elm Creek, NE
99 ws6 temp gauge issues. Pcm correct 
Trying to track down a temp gauge issue. Pcm is seeing correct temp and comes up with temp. Gauge shows like 200 at all times, no exceptions. Where do i start in tracking down the issue? What wires feed the cluster he info?
I don't see an issue. First, in the picture I see the IAT gauge, that is for the intake air temperature, not the engine water temperature. Second, you have a '99 that uses digital gauges, not analog. The '98 three prong temp sensor actually read the real time temperature to the gauge cluster. For '99-'02, once the temperature warms up, the gauge will pretty much sit at 190-200 all the time while the car temp is within operating range.
Thread Starter
Joined: May 2012
Posts: 1,796
Likes: 59
From: Elm Creek, NE
The ECT is directly above that, in bothe these pictures were taken 10'seconds apart. The pcm reads 39*, the dash says 200 ish. It. does. Not. Move. Period.
I know about the dummy gauge, I also know at -10 degrees first start, the gauge should not read 200*. The gauge doesn't move. Period. At all. From -10 outside first start, to warmed up and operating temp, it says 200 the entire time. I've had 4-5 of these cars, they all start at the cold peg and come up to the middle when it's warm. THis car is doing nothing.
I know about the dummy gauge, I also know at -10 degrees first start, the gauge should not read 200*. The gauge doesn't move. Period. At all. From -10 outside first start, to warmed up and operating temp, it says 200 the entire time. I've had 4-5 of these cars, they all start at the cold peg and come up to the middle when it's warm. THis car is doing nothing.
The ECT is directly above that, in bothe these pictures were taken 10'seconds apart. The pcm reads 39*, the dash says 200 ish. It. does. Not. Move. Period.
I know about the dummy gauge, I also know at -10 degrees first start, the gauge should not read 200*. The gauge doesn't move. Period. At all. From -10 outside first start, to warmed up and operating temp, it says 200 the entire time. I've had 4-5 of these cars, they all start at the cold peg and come up to the middle when it's warm. THis car is doing nothing.
I know about the dummy gauge, I also know at -10 degrees first start, the gauge should not read 200*. The gauge doesn't move. Period. At all. From -10 outside first start, to warmed up and operating temp, it says 200 the entire time. I've had 4-5 of these cars, they all start at the cold peg and come up to the middle when it's warm. THis car is doing nothing.
Thread Starter
Joined: May 2012
Posts: 1,796
Likes: 59
From: Elm Creek, NE
No problem, no I have not yet, just because it's working correctly according to my vcm scanner. Also, if you unplug the sensor, it goes to -48 or whatever it is on the vcm scanner, gauge doesn't budge.
