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Catalytic converter due to unburned fuel being burnt in the converter.

It can also cause damage to the ignition module.

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Q: What can bad spark plug wires damage?
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Related questions

What causes spark plugs to stop firing?

No spark from coil, bad plug wires, or bad plugs.


Will bad spark plugs and plug wires make your car vibrate?

Yes, bad spark pugs or plug wires can cause the engine cylinder to misfire which will cause the engine to vibrate.


Can spark plug wires be bad even if they look fine?

YES.


Will bad spark plug wires affect gear shifting in automatic transmission?

Bad spark plug wires affect many areas of your vehicle. However, gear shifting in an automatic transmission is not one of them.


What causes a yellow spark at the plug of a Chevy 350 you have power to the coil and the ignition control module It has a crisp blue spark from the plug wire but not at the plug?

poor spark plug gap bad wires or weak coil or bad spark plugs


Your 1996 Mazda 626 has no spark at the cylinders?

Your plugs are bad, you coil is out or you have bad plug wires. If all spark plug wires are not firing then it is the coil or a fuse in the fuse box labeled ign hope this helps B


What causes no fire to spark plugs?

bad spark plug wires, low battery, broken rotor in the distributor


Engine will turn over but won't start and no spark?

Bad distributor or rotor or bad spark plug wires would be my first culprits.


Causes of cylinder misfire?

Bad spark plugs? Bad plug wires? Bad valve? Bad piston? Bad coil? (new Fords haeone for each cylinder) Bad spark plugs? Bad plug wires? Bad valve? Bad piston? Bad coil? (new Fords haeone for each cylinder)


What causes your car to skip sometimes then not skip?

Could be bad spark plug wires.


Whats wrong with your 1990 Chevy lumina if the spark plugs are not firing?

you are not getting spark. this could be from a bad alternator, bad spark plugs, bad spark plug wires, or bad engine coils. The spark plugs and wires are the cheapest so try putting in new ones of those first.


Have a idle problem with a 98 windstar 3.8idles good when cold idles rough and stalls when warm works fine when driving?

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