Who Can explain
- Thread starter zr1pete
- Start date
jvencius
Full Access Member
1) It's a Thermocouple, not thermocoupler
2) Here's how it operates: step on the loud pedal, the EGT (and, consequently the display needle) goes up. Get off of that pedal, EGT goes down.
Last edited:
95_stroker
Jefe
Do you want to know how a thermocouple functions or are you asking what the proper temps and functions of a EGT guage is? Whatza stepper motor?
Just want to know is it normal to see temps go up to about 400 or so while driving around town? I see the temps go down aprox 100 to 200 while accellerating normally from a stop. Do EGT's actually get cooler when accellerating lightly?
As far as stepper motor gauge, thats what is says on the box.
I have Dipricol gauges
Thanks for your reply
As far as stepper motor gauge, thats what is says on the box.
I have Dipricol gauges
Thanks for your reply
COMPOSER
COMPOSER
Just the opposite. as you excellerate, the exhaust temprature rises and your piro guage should rise also. if you have temp readings of 400 around town, i would think you have the thermocouple after turbo. remember more power on accelleration and under high demand, the exhaust climbs considerably.
DaveBen
SDD Senior Member
EGT's measure the Exhaust Gas Temperatures just after they exit the engine. The more you push on the throttle, the higher the temperatures are. They do not cool down with any throttle, only stay the same or rise slowly. A stepper motor is used to move the needle in the guage. It moves it in very small increments and not in a smooth analytical movement. The steps are small enough that you will not see them, I don't think.
Dave
Dave
patrickc
Full Access Member
EGT temps of 400 degree's is normal for driving around town. During any sort of acceleration the egt's normally go up, not down.
95_stroker
Jefe
I see, you have a problem with your pyro. You should idle @ approx 300°F when the engine is warm. Driving around town in traffic you should be seeing temps in the 600-700°F range and accelling from a stop you should be rising in temp, not falling.
Are you pre or post turbo with your probe location?
Update, when WOT is applied the EGT gauge goes to 0. when I let off it comes back up to about 500 on the gauge and this happens every time.... Think maybe something might be wired backwards? I got the factory wireing harness when purchased so the gauges come wired from the factory. any thoughts? what to look for...?