codes p0402 and p0158

2002 FORD EXPLORER
132,000 MILES • 4.6L • V8 • AUTOMATIC
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DWEB
  • MEMBER
  • 2 POSTS
code p0402 and p0158, does this mean that egr is bad? there is no power at high rpm's.
Jun 14, 2016 at 11:37 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
The PO402 is an EGR issue, but it will not cause any power loss. You might want to look for a plugged exhaust that could also trigger EGR codes.
Jun 14, 2016 at 11:46 AM
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