gpr diagram
Thread Starter
|
Senior User
Joined: Nov 2005
Posts: 189
Likes: 0
gpr diagram
anybody got a diagram for testing the gpr on these engines? mines not clicking like it should be ..(tested when warm....had 12 volts on one big post=----otha had none...but engine was warm?!?!)
any way to test?!
thanks
any way to test?!
thanks
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
You should see b+ on both big terminals if GPR is working. BEst way to test it is cold or at least until the EOT has dropped below 131 degrees. To verify the EOT is lower than 131° Disconnect EOT, Measure across the 2 pins on the sensor. Should be more than 11 ohms.
NOTE:
EOT readings to convert EOT to temperature
k Ohms - EOT volts - °C - °F
1.19 0.53 °120 °48
1.56 0.67 110 230
2.08 0.86 100 212
2.80 1.09 90 194
3.84 1.37 80 176
5.34 1.72 70 158
7.55 2.11 60 140
10.93 2.56 °50 °122
16.11 3.01 40 104
24.25 3.44 30 86
37.34 3.82 20 68
58.99 4.13 10 50
NOTE:
EOT readings to convert EOT to temperature
k Ohms - EOT volts - °C - °F
1.19 0.53 °120 °48
1.56 0.67 110 230
2.08 0.86 100 212
2.80 1.09 90 194
3.84 1.37 80 176
5.34 1.72 70 158
7.55 2.11 60 140
10.93 2.56 °50 °122
16.11 3.01 40 104
24.25 3.44 30 86
37.34 3.82 20 68
58.99 4.13 10 50
Junior User
Joined: Oct 2006
Posts: 87
Likes: 0
From: Southeast Iowa
You should see less than .5 ( thats 1half ) volt drop through the relay. example If you have 12.5 volts on the big post that has power full time, you should have 12 volts or more on the other big post when relay is energized. The way I test is have your volt meter ready and clear access to the relay. Turn the key to run and HURRY to the meter and relay (the computer only energizes the relay for 2 minutes and then de-energizes it). Take both readings while the relay is energized, if not the results will be skewed because of the huge draw the glow plugs put on battery voltage. You will see what I mean if you have the meter on the relay when it de-energizes the voltage will jump up.
Hope I helped, good luck.
Hope I helped, good luck.
