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Check Engine Lamp intermittently...help please
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<blockquote data-quote="zephuros" data-source="post: 2470957" data-attributes="member: 2617"><p>Error Code 21 is Ignition System Circuit. Most likely one of the following is buggered:</p><p></p><p>1. Crank Angle Sensor (and related harness)</p><p>2. Coils</p><p>3. Spark Plugs.</p><p></p><p>From the above i would recommend trying to change the coils and plugs first. The crank angle sensor is easy to spot if it has failed - basically CAS problems manifest themselves in the engine suddenly dying with the tachometer needle falling immediately to 0. This is a quick and almost instant drop from idle to 0. If this is not the case then chances are that the CAS is fine. </p><p></p><p>Plugs can also be a problem. check this out. But since you are opening up the top, and removing the coils in the process, you might want to find and change the dead coil. If you are interested i have one single brand new Ignition coil that I bought. Still in the box. PM me if interested.</p><p></p><p>Besides that there is nothing really that is related to a Code 21.</p></blockquote><p></p>
[QUOTE="zephuros, post: 2470957, member: 2617"] Error Code 21 is Ignition System Circuit. Most likely one of the following is buggered: 1. Crank Angle Sensor (and related harness) 2. Coils 3. Spark Plugs. From the above i would recommend trying to change the coils and plugs first. The crank angle sensor is easy to spot if it has failed - basically CAS problems manifest themselves in the engine suddenly dying with the tachometer needle falling immediately to 0. This is a quick and almost instant drop from idle to 0. If this is not the case then chances are that the CAS is fine. Plugs can also be a problem. check this out. But since you are opening up the top, and removing the coils in the process, you might want to find and change the dead coil. If you are interested i have one single brand new Ignition coil that I bought. Still in the box. PM me if interested. Besides that there is nothing really that is related to a Code 21. [/QUOTE]
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Check Engine Lamp intermittently...help please