Okay, I've been having misfiring problems on cylinders 3 and 4 for about a month. I changed my plugs, wires, dizzy cap/rotor, fuel filter, coil, and put fuel injector cleaner in my tank AND I even pulled the injectors and sprayed them with cleaner (they were nasty). After I did all that the car ran fine for about 500 miles and low and behold the damn CEL started flashing at me once again tonight. I'm so lost and mad... Please help.

The misfires started happening around the time the weather got colder and wetter. I doubt this is the case but could I have sucked water up through my cold air intake and screwed some internals? I am desperate for any help/advice.

Also another thing to note is that the car seems to be running perfectly fine... It doesn't buck or kick at all. There are two possibilities that come to my mind- timing or my ecu is fucked but like I said the car seems to run fine and I would think I could tell if my timing were off.

 

pull the code it might, help, might be the plugs are fouled since you stated sucking up water thorugh your cai

 

Everytime the CEL comes on I pull the code and get the same thing... 73 and 74. Misfires on 3 and 4... I just replaced the plugs. They were gray and one was cracked so I think I'm running way lean...

 

stock engine or swap?

 

Stock D16Y5.

 

only thing i can think of is a bad dizzy the actual thing or an ecu, double check all the parts you replaced,


unless you replaced em with used parts

 

i got it, i was reading an old honda bseries weried diagnostic code procedere book, tight valves , when was the last time tou adjusted those valves ?

 

Haven't ever had them adjusted... Probably should do that since I have been having a small valve tick when its really cold out. I never thought of that... Thanks for the help.

 

really easy in fact, all you do is yank off the valve cover, grab a feeler gauge and i belive it was .30 for intake and like .28 for the exhuast dont quote me on that