I have a 98 prelude with v2aem intake, ngk wires, iridium 9 plugs, high flow cat. I get ridiculously poor gas mileage for a full tank, I get about 180-200 miles and it's not because I floor it all the time, I drive freeway mostly. I've asked around and many people get between 260-300miles on a full tank. Why is my car not so gas efficient, nay ideas???

Thanks.

 

go ask your hella genius mechanic who charges you 300$ for an oil pan

 

Damn! You're getting half the mileage I am getting.

Your car is running fine? No power loss? CEL?

How old is your O2 sensor?

 

do these cars have a mass air flow sensor? if so, it couldnt hurt to clean that, it will help...

 

I get a cel67 code like every week which i kept reseting, but it indicates exactly that: O2 sensor malfunction/catalytic efficiency. The code is the same for both, but i replaced my cat, and thats fine, so now i guess i need to replace my o2 sensor. would u advise that, and where is the best place i could get one, online? kragen?

 

maybe, just maybe its a mix between your O2 sensor, the fact that you drive an auto and lastly the fact that you're harassin your **** on a daily basis. if all that is untrue, please tell me why you claimed to be herra fast in your jDm 5th gen prerude

 

I changed my cat to a high flow cat 2 months ago, and my O2 sensors are pretty old, do you know how many of them are there on a prelude? I was told there's one before the cat, and somewhere else down my exhaust line, and would i need to replace both, or just the front?

 

how are your brakes...?

mine were engaging on my 3rd gen... and i foudn the piston was seized out.

kinda dumb, but it was cutting down my mileage dramatically.

 

my brakes are terrible, now that i remember, they squeak. What do u mean by the pistons seizing out???

 

when you press your brakes the piston insinde the brake caliper will press the inner pad against the rotor. The piston should release then and seat back inside the caliper as they normally do.

On my car, which i just tore appart yesterday... the piston was rusted as fawk & wasnt goign back in. So the brakes were constantly being pressed against the rotor. Which is slowing you down. I could actually feel the car rock forward when i let off the gas cuz the brakes were applying themselves that bad all the time.

The right rear pad was worn down to like crazy.

If yours are sqeaking its prolly cuz theyre due to be changed. Theres a warning clip on the sides of the pads and once the pad wears down to a certain point the clip hits the rotor and squeaks to let you know what time it is.

Check it out man....or atleast pay someone else to do it. It'll be much safer.

 

thanks, appreciate the info.