allright my friends got an old accord?(i think) that he turned into a buzz car for our local track to race in and he's having problems misfiring in the high rpms. i can't identify the actual year and model anymore b/c it's been on the track for a few years,but heres what i know it looks like a DOHC nonvtec motor and his dad said the guy he got it from said it was a stock 2.0L motor and none of the engine codes can be found anymore on it(trust me i know where to look that's why i'm helping him b/c i'm the only person at that track that knows anything about hondas) so my questions are simply what might cause it to misfire in the high rpms and does anyone have a clue of the engine code? i kinow this is vague, but i'm trying to help this kid out b/c he has yet to finish a race b/c of his car giving out on him. plz help me with any info you may have.

 

Did he try the common tuneup stuff? Plugs, Cap, Rotor, Wires, Fuel Filter?

 

i tried this one time worked for me, but on the other hand so did my friend it was the fuel hose that runs from the fire wall to the fuel rail. it was clogged so when vtec was suppose to hit when he was punching it misfired

 

i know they did plugs at the track on saturday b/n races. as for cap and rotor i'm not sure, but i know i suggested it to em on saturday at the race so hopefully they did it. I know when my car was having misfire probs though it was in the lower rpms and mine was from cap and rotor. also i know it's not fuel lines or fuel filter b/c they had to run new ones after they bought the car and it's ran fine at one point since then.

 

Tell him to do the cap & rotor, and check the resistance in the wires. Next to that, the coil or ICM might need to be replaced. You could also check the engine grounding points.

Without a CEL, these problems are hard to diagnose.

 

well i finally have gained access to a computer again. It was freaking water in the gas tank. It ran like a dream on saturday night. but now my buddy has done a simple tune up to his car as well so it's running excellent again.