low rpm miss under load
low rpm miss under load Hey guys. A few months ago I had a problem where the car wouldn't start and found it was due to a bad coil wire. Replaced that and all was well. Now I'm experiencing what feels like a miss at lower rpms (under 2000) when I give it maybe more than half throttle. As long as I don't push down the gas too hard it runs perfect. I replaced the plugs when I was trying to track down the other problem a month or so ago (NGK) and I replaced the rest of the plug wires yesterday with no change. Coil ohm'd good, fuel pressure good, recently replaced fuel filter. Car runs completely normal otherwise. Any ideas?
TECH Veteran
Joined: Apr 2008
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since you replaced the plugs/wires....REALLY check that you don't have arc at plug boot, or Opti, end. This can be hard to see so you will need to look from underneath in a darker environment with engine running. If you use the stock metal heat shields over the plug boot end the arc can be between the boot and shield making it almost impossible to see.
misfire under load is often due to plug arc.
misfire under load is often due to plug arc.
