Famous 2002 Honda Civic Si Check Engine Light Flashing References. But it can also be timing related like position sensors on the cam and crank. So i have been dealing with an 18 si.
Attach one lead of the multimeter to the black/yellow wire, and ground the other lead to a nearby piece of metal. You don't need to take your car to a mechanic and pay a diagnostic fee for your check engine light (cel) or malfunction indicator light (mil), or even buy an obdii scanner. 2 vacuum leak 3 injector fault 4 high /low fuel pressure.
