Uncover the Secret Can Old Spark Plugs Trigger the Check Engine Light?

You probably did not properly torque the new spark plugs. If they are even a little bit too loose you will get a check engine light after a few days of driving. One common cause of a check engine marker light-up is spark plug wires gone bad. As a spark plug ages, its wires begin to develop tiny cracks ... Until then, the systems are "not ready" and do not throw a DTC, nor will the MIL be lit. Bad plugs or wires would cause some sort of misfire, ... Some owners ask if spark plugs cause the check engine light to flash? This ... A bad, old or dirty spark plug can cause the engine to misfire. If the ... I never thought NEW spark plugs could cause a check engine light to come on. ... Old 16th March 2016, 23:39. IFLY152 IFLY152 is offline. I've seen some sites saying it's a bad evap purge valve but can putting wrong spark plugs in really cause that? I'd never had any issues ... Changing spark plugs could be a good idea when… · Worn plugs can trigger your check engine light to come on. · This can cause your engine to misfire and your ... Bad spark plugs can cause your engine to misfire. The engine's ... will create a code that turns on the check engine light. A flashing ... A defective, old or dirty spark plug can cause the engine to misfire. If your check engine light is constantly flashing, please contact our team of automotive ... A defective, old or dirty spark plug can cause the engine to misfire. If your check engine light is always flashing, please contact our team of automotive ...