Originally posted by grossgo:
Got a CEL and downloaded the code, (two of them). It comes up P0402 (EGR Flow Excessive) and P0174 (System Too Lean. Bank 2). There are NO apparent drivability symptoms. In fact she's running great. 
Any ideas? Suggestions? BTW, I deleted these codes and they came up again in a day, so it's not some kind of fluke.
Oh yeah, this is a '99 SVT with approx. 136,000 klms. on her.
Thanks, people
Glen
If the O2's have not been replaced it's high time to do so.
Excessive EGR flow will cause a rough low idle. If you never have that problem I would say your DPFE is getting a bit whacked. If you do have a bad idle it could be the DPFE or the EVR is leaking.
"Those who cannot remember the past are condemned to repeat it" -George Santayana
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