Slowbaru

I've been chasing this demon for the past couple days. I have a random/multiple misfire on my 2002 s2000 with 98k.

since it is on all cylinders, I assume it's not coil packs or injectors.

So far I have changed the MAP sensor, cleaned the passage ways for it. installed a new air filter, new fuel filter, new oem plugs, installed ap2 intake valve retainers with keepers, valve adjustment, checked alternator, checked TPS sensor, drained the fuel tank, and filled it with fresh gas.

tomorrow I'm going to do a compression test, but I dont think that it's going to be the problem. This car has always been well kept, none of the retainers were cracked, and all the valves were in spec, and they have never been adjusted until now.

Is anyone local that could give me a hand?

Billman250

I can fix your misfire. Starting with fuel trim to see if its caused by a rich or lean condition.

Slowbaru

thanks anyway, looks like I've already found the problem.