My CL seems to be running rich. I keep my car really well maintained, so I don't really understand why. I don't have any engine lights on, and I have a new O2 sensor. I have also noticed that I am getting terrible gass milage (about 200 miles per tank). I have about 94K miles and it still feels like it's running really well. Any suggested as to how I can make my car run a littler leaner will be appreciated.

 

I heard hondas in general are tuned rich, not sure how true that is because that doesnt entirely make sense to do. Id get your computer checked for codes because if its a minor problem there wont necessarily be a check engine light. You should definately be getting more than 200 miles per tank. Do you have a 2.2, 2.3, or 3.0?

 

I have the 3.0. I had Radley Acura check it out, and the made me waste $600 on a new EGR Kit.

 

omg...what year is your car, cause that is covered under warranty......till about 120k i believe....screw 600 on a new egr valve, get your money back man......you could have just cleaned the egr valve yourself for 3 bucks.....usually thatz all it takes.....and yea, our cars run rich naturally....

 

Just A Question What Do You Mean Exactly By Running Rich?

 

get a V-AFC II. THat shit will make your car run exactly right inn it's a/f ratio, or you can keep it a tiny bit rich just to be safe, but you have to have the car dyno-tuned to get it done properly. also... if you plan on doing any mods, it's best to wait until you are done modding to dyno-tune it as you wil have to retune it if you get any more mods.

 

Well, I have a '98 with 94 K miles so it's not under warrenty anymore and apparently there was a service bulletin on that model regarding the ERG ports getting clogged. After paying $600 and not seeing any improvement, I assumed the changed it with out even checking whether it was clogged or not. So I got screwed because I'm desperate, especially with gas prices being as high as they are.

 

I mean my cars air/fuel ratio is heavy on fuel and light on air. I can even see the white smoke coming from my exhaust even after the engine is warm.

 

OK... so last night, after going through some of these VERY helpful suggestions, I decided to reset my ECU. I pulled the fuse then let it run for about 10 minutes. After I turn off my car, I put the fuse back in, but because it was very late, I didn't restart the car until this morning. Now my check engine light is on. I assume that it's because one of my sensors finally picked up what was causing my gas mileage problem, maybe? Did I screw something up or did I finally make a step towards progress?

 

bro i had the same problem u did when i got my car at 80k...your EGR valve was damaged probably too, but your intake manifold is clogged b/c the mechanic i bought my car from at the dealership said thats why ur swallowing soo much gas..i was gettin like 150-200miles to a tank...so tell them to check that and get it cleaned out...luckily mine was at a 1 month warranty when purchasing the car...or it would've cost me $500+
hope that helps

 

Suggestions, got to Advanced Auto, Pep Boys, or Auto Zone and pick you up one of those pluggin programers, use it to read and fix all your stuff. You can find out what the problem is and reset the car to make the check engine light go off. Its around 50-100 bones alot better than all this paying to have it looked at. I had to replace my EGR butI did it myself and the new EGR only cost me like 200. Sounds like you should just go get you a programer. It may even help you to get better fuel consumption. I have a 98 3.0 wiht 98000 miles and I get close to 400 miles a tank.

 

please dont tell me u ran the car with the back up fuse out!!!! if u did that is why u have a code. if u pull them it will prolly show a code for everything running onthe backup fuse...like the ecu. what u do is disconnect the battery for 15 minutes. and reconnect it and start the car. neever ever ever run the car withouth the back up fuse out.

 

JESUS H CHRIST MAN!!! I get a MAX of about 300 miles per tank. Of course I'm about a mile above sea level, and it's mostly stock... but still.. that's fuckin crazy... or you are.

 

Just for the interest sake...
guys, what's your gas milage on your cars?
I have 97 3.0. I have K&N air filter. I can ran appx. 460K (appx 280 miles) until my fuel light goes on. Than i have another 50-60K (35-40 miles) until i feel like fueling up... It goes down to just under 11 L\100 km in the city. I know that most of you guys are mpg born and rased... Sorry, can't convert it for you...

ps 400 miles is WOW. is it mostly highway or city driving?

 

i get around 370 maybe with another 15 gas on top before i fill up
and i'm out in the bronx all the time

 

ok the farthest I went was 388 miles to be exact.

 

If you think that your car is taking too much gas then check if you have black smoke coming from the exhust......tell someone to step on the gas real quick and see if black smoke comes out...more than you think......

 

Running rich is better than running lean and causing detonation.

 

I agree that running rich is better than running lean, but I think my situation is a little extreme.

 

How do you know its running rich? Spark plug wear? Did you check out the fuel map?

 

Saw this in another thread:
I the emmisions warranty for the egr valve for 97's are 14 years, 150,000 miles.

I wonder in I can get my money back?

 

You could try w/ Acura, but I doubt it 'cause the '98 is only covered until 80k.