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The Terminator
Engine/Tuning
Throwing Code on ALL ignition coils
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<blockquote data-quote="Juiced46" data-source="post: 15598014" data-attributes="member: 11519"><p>The coils all share the same Power/Voltage source which comes from the CCRM. The coil driver is built into the PCM which sends the ground signal. My guess is, the CCRM power supply acting up, or some kind of issue on the wire powering all the coils (loose, mouse chewed, corroded on the connector etc). The CCRM is located in the passenger front fender, behind the wheel liner. Check the large connector at the back of the engine bay on the passenger side with the 10mm bolt on the top, this is the most easily accessible thing for you at the moment. Make sure that is tight, if it is, remove it, make sure there is no corrosion in there on the pins. If that is ok. Time to break out a multi meter and check the voltage signal to the coils. The issue would be either the voltage output signal from the CCRM or like I said, some sort of poor connection on that power wire since they all share it. The ground side, each coil has its own ground internally (coil drivers) in the PCM. Could they all go bad at once? Doubtful, however, I have seen a bunch of PCMs fail and it was the coil driver, I have actually seen them short out so bad they tops of the coils would melt on a few occasions. </p><p></p><p>Could also be battery voltage related, but that is a long shot. But worth a shot to check as well. Do you have the capability to datalog?</p><p></p><p>Do you wash your engine bay at all?</p></blockquote><p></p>
[QUOTE="Juiced46, post: 15598014, member: 11519"] The coils all share the same Power/Voltage source which comes from the CCRM. The coil driver is built into the PCM which sends the ground signal. My guess is, the CCRM power supply acting up, or some kind of issue on the wire powering all the coils (loose, mouse chewed, corroded on the connector etc). The CCRM is located in the passenger front fender, behind the wheel liner. Check the large connector at the back of the engine bay on the passenger side with the 10mm bolt on the top, this is the most easily accessible thing for you at the moment. Make sure that is tight, if it is, remove it, make sure there is no corrosion in there on the pins. If that is ok. Time to break out a multi meter and check the voltage signal to the coils. The issue would be either the voltage output signal from the CCRM or like I said, some sort of poor connection on that power wire since they all share it. The ground side, each coil has its own ground internally (coil drivers) in the PCM. Could they all go bad at once? Doubtful, however, I have seen a bunch of PCMs fail and it was the coil driver, I have actually seen them short out so bad they tops of the coils would melt on a few occasions. Could also be battery voltage related, but that is a long shot. But worth a shot to check as well. Do you have the capability to datalog? Do you wash your engine bay at all? [/QUOTE]
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Throwing Code on ALL ignition coils
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