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Exhaust Gas RECIRCULATION (C-7): Notes

There are 3 types of EGR systems used: pulse width modulated backpressure EGR (positive and negative) with a control solenoid, pulse width modulated backpressure (positive and negative) EGR without a control solenoid, and digital EGR. To determine EGR system usage, see EGR SYSTEM IDENTIFICATION .

EGR SYSTEM IDENTIFICATION

Application	System Type	Solenoid Type
5.7L ("Y" Body)	BP/EGR	Normally Open