We'll take this one @ a time
O2 sensor/s is it OEM parts?
Check the EGR make sure its getting vacuum, also all passages clean of carbons[/quote:9d8ad93128]
If the EGR system is leaking or inoperative, it can cause driveability problems, including detonation (knocking or pinging when accelerating or under load), a rough idle, stalling, hard starting, elevated NOx emissions and even elevated hydrocarbon (HC) emissions in the exhaust.
Thursday, August 23rd, 2007 AT 3:39 AM