SPONSORED LINKS

High hydrocarbons

Tiny
ED303
  • MEMBER
  • 1991 HONDA CIVIC
  • 1.5L
  • 4 CYL
  • FWD
  • MANUAL
  • 180,000 MILES
I failed emissions test with high hydrocarbon numbers. It gets bad gas mileage, it misfires when cold, loss of power. When tank has quarter of gas car will want to shut off, only when I have about less than quarter take of gas, will not do it when full tank. Catalytic converter is okay, no check engine light. Car does not smoke or overheat.
SPONSORED LINKS
Thursday, March 30th, 2017 AT 9:13 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check your fuel pressure with a gauge auto parts rent it. The pressure may be too high or low but not enough to set a check engine light. Then change oil and filter, air filter if dirty or not been changed in a long time then drive about fifteen miles on eway and then get tested.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, March 31st, 2017 AT 7:37 AM

Please login or register to post a reply.

Related Engine Poor Mileage Content

VIEW MORE

Sponsored links