Yes, it could be the EGR. I start with the simplest possibilities first with a rough or misfiring engine condition.
I mensioned the MAF cause it can easily be cleaned with some MAF Cleaner. You can also disconnect it, the computer will go into a default mode and your vehicle will run normally.
And since you brought in the EGR, it could also be the EGR Control Solenoid or the EGR Pressure feedback Sensor.
Other possibilities are.
Weak Fuel Pump
Blown Head Gasket
Is the engine light on? If so get codes pulled will help narrow the field.
Please consider a to help us answer more questions.
Sunday, May 22nd, 2011 AT 10:04 PM