Exhaust Gas RECIRCULATION (C-7): Notes
There are 3 types of EGR systems used: pulse width modulated backpressure (positive and negative) EGR with a control solenoid, pulse width modulated backpressure (positive and negative) EGR without a control solenoid, and digital EGR. See EGR SYSTEM IDENTIFICATION table.
EGR SYSTEM IDENTIFICATION
| Application | System Type | Solenoid Type |
|---|---|---|
| 4.9L | BP/EGR | Normally Open |
| 5.0L & 5.7L | BP/EGR | Normally Closed |