2000 honda civic lx, engine misfire?

Question

car has 70000 miles on it. started running "rough" an check engine lite came on. i extracted the codes by grounding the computer w/paperclip = misfire in cylinder #3 and #4. any ideas of where to find source of problem? i was raised on muscle cars so hondas are (literally) japanese to me.
thanx in advance.
i can help with 60s'-70s' muscle car questions.

Answer 1

Im with you too on the 60-70 muscle cars, but. Look at the basics, this hasnt changed at all. You still get ignition misfirs. Check your wires and plugs. Check the ignition cap and rotor , if you have them. Just do the basic checks, im sure that you will find what is causing the misfiring.
good luck

Answer 2

The code P1381 is an illustration that the ignition coil is breaking down and causing an intermittant lack of the signal. Honda had a service advisory on that code that suggested in case you get the 1381 that the coil is probable defective. A failing ignition coil might want to generate a decrease voltage (weaker) spark that would want to reason your low idle. So the first element to do is to have the ignition coil replaced before it fails completely and the vehicle stops. subsequently, the verify engine basic is doing its job of alerting you to a topic, so seem after it. the P1399 code is only a well-known failure code it truly is generated mutually because the P1381 code and could flow away once you fix the well-known subject. also, you do not furnish any upkeep historic previous on the motorcar yet in accordance with that mileage the vehicle is due for a valve adjustment if it hasn't been carried out. The valve adjustment is the most severe adjustment on that vehicle with reference to idle high quality. the upkeep agenda on that vehicle called for the replace of the spark plugs, a valve adjustment and idle adjustment each and every 30,000 miles. in case you are able to't bear in mind the perfect time it replaced into carried out its probable time to attempt this throughout addition. previous that, the conventional upkeep products alongside with the distributor cap, wires, and rotor might want to be checked and adjusted in the journey that they are wiped out. initiate by technique of adjusting the ignition coil and flow from there. desire that permits

Answer 3

I've dealt with this in the past...the last time it happened was because I had washed my cleaned my engine and water had gotten into the plug wires and spark plug wells causing small shorts...

Did you wash your engine recently? If so try some Wire Dryer. Also you could try replacing your plug wires and plugs. As far as I know it wouldn't be your timing because Honda Computers automatically adjust for mis-timing.

Hope this helps out.