1991 Dodge Caravan smog-failed

Tiny
LUMIN
  • MEMBER
  • 1991 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 203,000 MILES
I have a 1991 Dodge Caravan; 3.3 liter with over 203,000 on it
and it passed all the smog tests but failed on the NO(PPM)
test: Max:903--Meas:1103-15mph
and Max:613--Meas:735-25mph;
any idea what it could be?
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Monday, December 13th, 2010 AT 9:14 PM

1 Reply

Tiny
RASMATAZ
  • MEMBER
Clean and test the EGR valve
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Monday, December 13th, 2010 AT 9:16 PM

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