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High Output Coil S40-V40

posted by  mormit on  Thu May 30 14:20 CST 2002
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last visit: Sat Jun 7 18:36 CST 2014
[RELATED]

That's just an aftermarket company selling ricers something they don't really need.

The stock coil is all you need. As long as the stock is in good shape (they last for many years) it will deliver more than adequate spark. This is an area no car maker would skimp on. Putting an underpowered coil on a new car would hurt emissions, fuel economy, and starting.

You can see that your ignition system is working properly by inspecting your sparkplugs. Dry, black deposits indicate a weak spark, other ignition system problems, or too rich. If the plugs look good (grey-brown), the ignition system is doing its job and combustion is complete. Adding a higher voltage spark does nothing.

MORMIT
1985 245DL 232,000mi
2002 S40 4,700mi






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