1991 Honda Civic failed emissions 1991 honda 1.5

179,202 MILES • 4 CYL • FWD • MANUAL
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ROTTI7631
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  • 1 POST
hello i took my car for a emissions and it failed it has high hc limts are 1500 my readings are 2015 i changed the spark plugs oil air filter everthing else passed catalytic converter passed fuel filler restrictor pass air injection system passed oxygen senser pass check engine light pass fuel cap pass evaporative system pass it as a thortle body i dont know what to do next any idea please help
Sep 29, 2008 at 2:19 PM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
check your fuel pressure, you may be running a little rich, and may have to replace your fuel pressure reg.
Sep 29, 2008 at 2:27 PM
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LEGITIMATE007
  • ✓Experienced Mechanic
  • 5,121 POSTS
go here for fuel pressure check

https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm
Sep 29, 2008 at 2:28 PM
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