Random Misfire
Posted: Sat Jul 21, 2012 3:09 pm
I am having a random misfire on my 98 prelude. so far i have changed plug wires, plugs, distributor cap, cleaned erg valve, changed fuel filter, and fuel pressure regulator and still get a misfire. After finally admitting to myself that i am defeated, i took to honda and paid $98 to get a diagnosis. They determined that i probably need to do a valve adjustment because it sounds loud, if that does fix it i would have to do a leak down test. A total of $481. I was watching a you tube video by preludedriver on adjusting the valves but i couldnt tell if the smaller end of the valves were pointed upwards when he got to the 3rd valve. could anyone confirm for me if the valves should only be adjusted with the smaller portion turned up. The valve is kind of a tear drop shape. I just want to make sure before i attempt this.