im running rich how do i change that

[davidmoise18]

so i failed my emmison test today they said i faild my idail test not shur what to do about that hope you guys can give me some help i got a 2g 97 non turbo

 

[dsmconifer]

so i failed my emmison test today they said i faild my idail test not shur what to do about that hope you guys can give me some help i got a 2g 97 non turbo

get your plates in a county that does not do emissions i did that with my old jeep and now eclipse all you need is someones address say your living with them

 

[davidmoise18]

i dont think there is a county like that around here. anywere i go they are going to ask me i believe

 

[Brutal_r3drum]

not 100% on this but could old o2 sensor be making it run lean?

 

[jeffo]

How old is your O2 sensor? Are you getting any MIL's? Do you have the exact results of the tests?
If the mods in your sig are really all you have, then my bet would be on the O2 sensor.

 

[davidmoise18]

im not shur how old the o2 sensor is ### i just bought the car

what is a mil's

 

[snowborder714]

Please use proper spelling, grammar, punctuation, capitalization, etc. when posting.

 

[rEclipserGST]

not 100% on this but could old o2 sensor be making it run lean?

He said running RICH, not LEAN. Change the o2 sensor & try to use difference gas. This maybe cheating, but e85 will make ya run leaner. So maybe try adding like 2 gallons of that to your regular gas & see what happens. Or try to get plates in a different county like that dude say. You can us P.O. boxes as an address I believe.

 

[jeffo]

MIL is the Check Engine Light.
Change the front O2 sensor and get tested again. If your car is really that stock, and the O2 sensor doesn't fix it, your cat may be shot. Was the car and cat fully warmed up when you ran the test? Didn't they give you a printout with the actual test results?

 

[ZABMANN]

What i would do is get your injectors checked. If an injector is stuck open it would trip the o2 sensor and cause it to run lean.

 

[slickers111]

im running rich how do i change that

That is the title. He is not running lean. He Is running too rich.
Let us know the results when you get in a New Front O2 sensor.

 

[ZABMANN]

My bad. I meant rich. I just had the same problem as he did. Sorry.

 

[rock1t]

Sign your title to me, and I will give you Kentucky License plates!!!! No emissions.. ah HAHA. I love this state a little more each day.

 

[mindset]

I don't understand how you guys are giving him all of these ideas without seeing actual results...

 

[ZABMANN]

We are giving him advice to try to solve the problem?

 

[davidmoise18]

k so my first mistake was not get my cat hot but the test specifically said that i failed my idle test because i had to many hydro carbons coming out the exhaust
and i am a complete newbie to dsm's so were is the o2 sensor and how much do they run

 

[Boot92]

open your hood, and look into the engine, and you look at the headers.

You will see what looks like a Spark plug with a wire coming out of it.

thats your 02 Sensor.

Replace it.

Check emissions again.

Heres a Example of a O2 sensor.

You must be logged in to view this image or video.

 

[Kastigir]

Make sure you drive it around for *at least* 20 minutes before taking your test.

 

[Boot92]

Emissions is the stupidest thing...


we have it around here too everyone hates it.

 

[95 'clipse RS]

The Oxygen Sensors do affect the AFR (air/ fuel ratio). However, other sensors do as well. The others are the, MAP sensor (Manifold Absolute Pressure), TPS (Throttle Position Sensor), and ECT (Engine Coolant Temperature Sensor). All of these affect fuel delivery, which will affect air/fuel ratios. So you might as well take all of them into consideration for running rich. You can check the old sensors with a volt/ohm meter and you will know which one is causing the problem. That would be way better and cheaper to just start replacing random sensors. If you dont have one, then i would suggest buying one as it will help you over and over, plus you can get one cheaper than it would cost to even replace one of those 4 sensors. If you have a mitsu, haynes, or chilton's service manual, it will tell and show you how to check their values. If you dont have a manual, then me or the other members could give you the values they should be. Also, your cat could also be the problem as well as not letting the car warm up and come to operating temperature. When the car is first started, it is designed to run rich purposely, this warms the engine up quicker and brings it to operating temperature. This is all controlled by the ECT (Engine Coolant Temp. Sensor). Which then sends information to the ECU and makes changes to the fuel mapping depending on how cold or hot the engine is.

We dont have emissions here, but i had a situation where the ECT affected my AFR so bad that it caused it to run extremely lean, to the point that i couldnt even start the car. I had to spray fuel down the intake to get it home. So that goes to show that any of these information sensors can cause problems, because they all will fail or misread at some point and cause a AFR problem.

I hope this helps you, let me know if you need any voltage or resistance values for the sensors.