Can someone tell me the symptoms of a bad or faulty spark plug wire? I've noticed many weird things happening to my car, and I'm wondering what may be the cause.

 

91 accord jdm h22a

 

When was the last time you did a tune up and replaced the cap, rotor, wires and plugs? If you have a multimeter you can test the resistance of your wires. Another way to test them would be to start the car and use a water misting spray bottle and spray the wires. If you see or hear spark leaking from the wires they should be replaced.

Other than that, giving people a bit more detail about your symptoms might help diagnosis of your issue.

 

Sorry bro.

I replaced the Intake filter, replaced the IACV, Replaced the PSteering belt, Replaced my EGR Valve + Gasket, and I have a new thermostat ready to go in. The car runs very oddly. When I purchased the car there was a Block off plate on the FITV, I removed that, topped up the fluids. Since then I have this idle issue th at just will not go away. Right now with the car warm, I can rev it (In neutral) to 3gs, and once the RPM's fall (I let it) It drops to 0 and completely dies. My distributor is BRAND new. My plugs are a goldish brown color, and my wires are in decent shape but I have no clue how old they are since I just got the car. I thought replacing them would be a good idea. The only thing I have not tried to fix this issue, is switch out the TB + Mani, and put my H22A4 replacement in..