PRE-RELEASE
EGR solenoid unit (606)
| EGR solenoid unit (606) |
| Location |
EGR solenoid unit (606)
| Main task |
The engine is equipped with a water-cooled, electrically controlled EGR valve that leads some of the engine exhaust to the induction pipe. The exhaust lowers the temperature in the combustion chamber, thereby reducing build-up of nitrous oxide. The EGR valve has its own processor that always knows how much the valve is open. This makes control time very short when ECM sends a request for a specific EGR ratio. This also means that changes in the valve opening position occur quickly, all to keep combustion temperature as low as possible.
| Type |
| Connection |
|
Pin No.
|
Signal type
|
Description
|
| 1 | Control | PWM signal of 140 Hz. Connected to ECM pin 14(M). |
| 2 | Power supply, +15 | Solenoid valve's power supply via fuse 4. |
| 3 | Ground | EGR valve's ground |
| 4 | Signal, diagnostics | EGR valve's diagnostic signal, PWM 100 Hz. Connected to ECM pin 19(M). |
