Poor Idle, Rich Running After Engine Repair (Install Correct EGR Adapter Gasket). Chevrolet Beretta 1996

For 1990-2009 cars

# Poor Idle, Rich Running After Engine Repair (Install Correct EGR Adapter Gasket)

Subject: | Poor Idle, Rich Running After Engine Repair (Install Correct EGR Adapter Gasket)

Models: | 1996-97 Chevrolet Cavalier, Corsica, Beretta

| 1996-97 Pontiac Sunfire

| with 2.2L Engine (VIN 4 -- RPO LN2)

| 1996-97 Chevrolet and GMC S Truck

| with 2.2L Engine (VIN 4 -- RPO LN2)

### Condition

Some owners may comment on a rough engine idle following engine service requiring EGR adapter gasket replacement.

### Cause

The engine may have had an incorrect EGR adapter gasket installed during servicing. In effect, this will cause low intake manifold vacuum causing the fuel pressure to go up and cause the engine to run very rough and rich.

### Correction

Make sure the correct EGR adapter gasket for the correct application is used.