P0301
Cyl 1 Misfire

P0302
Cyl 2 Misfire

P0304
Cyl 4 Misfire

P0305
Cyl 5 Misfire

P0300
Random / Multiple Cyl Misfire

P1399
(i think this is a misfire code too)

i changed my plugs in december, may have overtightened but i don't think that would cause this?

here is the dyno: http://i40.photobucket.com/albums/e2...ancl/dyno2.jpg

 

damn bro... your gas milage must suck teh shit.. good luck getting all that fixed

 

gas mileage has been great, 250 a tank with an extremely heavy foot and all city driving, 300 a tank easily with heavy foot on the highway... shrugs, last month i got 400 to the tank on a long distance trip

 

maybe its a one time occurance then... usually throwing misfires like that regularly eats gas like crazy

 

the codes dont pop up everyday, i've gotten them today, and once last week, and maybe once like 3-4 months ago

 

BTW those are the codes i got when my CAT went...if i remember 1399 is cat

 

mine didn't throw any codes. but the vsa and abs and damn near every dummy light was on after the pulls on the dyno.

 

would a bad cat make strange noises? i started hearing a rattle, sort of in the midlle of the car in the last week.

 

I would say so. That's where the cat is. Too many coincidences.

 

i guess i'll be putting in my magnaflow exhaust sooner than i thought.

 

 

worst case... cyc. damage (edged a rod, etc.)

 

im new and still learning, whats cels? and where can i read them? thanks

 

cel = censors(codes). ex--oxygen censor is not reading right (not enough oxygen gettin to the engine) a CEL goes off. Your ecu (brain) picks this up and ends up telling you there is something wrong by way of gauge light.

His misfires in his cyc. are do to the wrong combination of fuel, oil, air... combustion and in turn the cyc. does not fire correctly, again sending a message (CEL sode) to the ecu

each CEL code means a different problem like stated before, TypeR said 1399 means his cat. is not operating properly, so on and so forth

you read them by... im not sure about the CLS but for the honda prelude you connect to wires under the stereo and the engine light would blink a certain amount of times and at different rates giving you a numer of which CEL youd had thrown (ex. 1399).

im rambling....

 

you are correct james, and a thrown rod has been in the back of my head ever since i started hearing the sound...

 

Maybe your plugs are not the correct heat range, or something's wrong with them, or the coils. To get misfires on almost all your cylinders, & have it intermittent points to the plugs or coils. The cat code could be related. Or could be bad now because of the misfires.
If it was a rod or cylinder damage, it would be consistant, & your MPG would have dropped.

 

yup, i got a cat in the mail, going to acura now to order new coils, and i may just buy new plugs, again, just to be sure. i think its failing coil or two and my cat may be goin bad.

 

CEL stand for Check Engine Light

 

that works

 

I had a bad coil pack in cylinder #2 when my car threw all those CELs.

 

Where are you getting these dynos done and how much?

 

T&R Racing
Queens, NY
PM me for phone#, don't wanna mess with moderators.
They build rotarys (RX7s) but there is a guy, Dusty, who KNOWS honda engines, I've seen his work in person. I am probably going to let them do my 3.5L stroker. He estimated at a week if I had all the parts.

$75 for 3 runs w/ AFR, a bit pricey but in NY that's not bad.