EGR Flow Rate Is Too Low

Test 1:

Test 2 - Test 6:

Test 7 - Test 10:

SYMPTOM
P2355-EGR FLOW RATE IS TOO LOW

TEST NOTE
This symptom is diagnosed using the test P2066-MASS AIR FLOW SENSOR PLAUSIBILITY.

POSSIBLE CAUSES
- Air filter
- Air restriction
- Checking for air leaks
- EGR actuation - 1200 RPM
- EGR valve
- MAF sensor
- MAF sensor reading - 3OOO RPM
- Intermittent condition
- EGR restriction