Barely passed emission test

[Raul]

Yup so barely passed. The technicians were saying that my car was running too rich. Did some research and found out that its not good for engine at all and gives you ****ty mileage.

Current mileage: 341XXX km. What should I do to make the car run better? Full tune up?

No CEL on either

On the side, they had to remove my front lip because the car would not go on the dyno thingy. They said my accord was too low

 

[jwong512]

Replace your PCV Valve, clean your EGR Valve, clean your IM/TB, replace spark plugs. That's all that I can think of off the top of my head.

 

[001Stunna]

Replace your PCV Valve, clean your EGR Valve, clean your IM/TB, replace spark plugs. That's all that I can think of off the top of my head.

...some more to add

-Clean/replace your air filter
-Clean your EGR Port/Passage ways...as the valve isn't really the one thats the culprit
-Change the plugs if you haven't done so in the past 2 years or more
-Check/change your plug wires if you haven't done so in a while
-Check replace distributor cap/rotor
-Run some fuel injector cleaner(i've used STP and Seafoam before)
-Seafoam through the pcv vacuum hose (you can do 1/2 can through hose and 1/2 in gas tank)
-Reset your ECU by unplugging the battery negative, reconnecting it, and leaving the car run for ~10 minutes(not counting if the fans come on) on idle


...more expensive things to check and replace
-Check your o2 sensor(s) on how they're working (you'll need a scantool with live readings to do so though)
-Check/replace map sensor readings
-Check/replace fuel pressure regulator

 

[F23A1AT]

A tune up...... aka "regular maintenance"

 

[Raul]

how much am i looking into?

I remember spending $250 back in 2007 for full tune up

 

[001Stunna]

how much am i looking into?

I remember spending $250 back in 2007 for full tune up

Depends what you define as a full tuneup...

 

[Raul]

Depends what you define as a full tuneup...

Chi did it and he said it was full tune up. I used to get amazing gas mileage after that.

Now i am barely getting 7.5km per liter on highway.

 

[F23A1AT]

250 dollars for 4 years of decent MPGs. Sounds like a deal to me, you cant do this stuff and expect it to last forever.