WHAT IS THE DIFFERENCE BETWEEN A "CALIFORNIA EMISSIONS" AND A "FEDERAL EMISSIONS"

2000 JEEP GRAND CHEROKEE
150,000 MILES
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LWAHARLEYBOY
  • MEMBER
  • 3 POSTS
4.0L IN A ? The engine in my jeep has been replaced. I think it originally had a federal engine because it had only 2 O2 sensors. Now it has 2 by the converter and 2 pigtails on the back of the engine. I keep getting a bad O2 sensor code and occasionally it will stumble on acceleration and has no power. I have replaced the fuel filter and show good fuel pressure. This is driving me nuts because I can't depend on the motor not running rough. This is only an intermediate problem. What do I need to do???
Feb 23, 2012 at 2:54 AM
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BILLYMAC
  • ✓ASE Certified Mechanic
  • 2,204 POSTS
  • ASE Certified Mechanic
california requires more emissions then the federal laws.your post did not mention tune up or other maintenance?
Feb 23, 2012 at 3:05 AM
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