Where are pins 2 and 3 on the EGR?

Where are pins 2 and 3 on the EGR?

Those two lines (pins 2 & 3 on the EGR) are dedicated to the EGR. They go straight from pcm to EGR. When the pcm sets the code, and reverse powers the EGR, it will go into a different operating mode, possibly a reduced power one. You need to look at the sensor signal on pin 4, and the sensor ground on pin 5 & Vref (5v) on pin 1.

Can you post known good EGR voltage on the connector?

2007 focus 1.6tdci can you post known good egr voltage on the connector I assume the EGR was disconnected, and you were probing the connector on the harness? Pins 2 & 3 are the motor drive. Normally these would be the same voltage, as the EGR would be closed (motor de-energised).

What are the voltages on a Ford EGR?

Normally these would be the same voltage, as the EGR would be closed (motor de-energised). But with valve disconnected, pcm could be driving it for some odd reason. Pin 1 is Vref (5v), Pin 5 is Ground (0v), Pin 4 is the feedback signal, so may be floating if the valve is not connected.

How to test a throttle position sensor ( TPS )?

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How to know if your TPS sensor is bad?

CASE 2: The TPS voltage signal DID NOT increase/decrease as you opened and closed the throttle plate. This test result usually indicates that the TPS sensor is defective. To make sure the TPS sensor is bad the next step is to check that the red wire is feeding the TPS with 5 Volts.

How to diagnose a bad throttle position sensor?

Here is how to diagnose a bad throttle position sensor TPS on a car or truck. The throttle position sensor in this video is on a Chevrolet pick up truck. Most General Motors cars will have throttle position sensor’s like this.

How to test the V8 Silverado TPS sensor?

Let’s get started: 1 Place your multimeter in Volts DC mode. 2 Connect the red multimeter test lead to the dark blue (DK BLU) wire of the TP sensor harness connector. 3 Ground the black multimeter test lead directly on the battery negative (-) post. 4 Manually rotate the throttle plate .