Why do ingnition spark plugs have resistors in them?

Question:


Answers:

Car Trouble?

"Today's spark plugs use resistors to eliminate radio frequency interference (RFI) which can affect on-board computer or ignition systems, AM and FM radio reception, and TV broadcasts. Each time the spark jumps across a gap, an electromagnetic field is created that can interfere with radio signals. By placing a resistor in the spark plug, we can substantially reduce RFI. Furthermore, the use of non-resistor plugs with today's complex computer systems can result in driveability problems, loss of performance and can even cause the computer to store trouble codes."

Discount tire Ride Matching Legit or Bunk?

to supress radio and other electronic interference.

I just installed a new alternator and battery but the alternator doe not charge battery. What can my problm b?

With no resistors there is extra sparking. Like an arc being struck instead of just one spark jumping. This burns the electrode of the plug faster. It also creates a lot of radio interference from the wires. The other item to control this spark and prevent excess arcing is a capacitor on the ignition coil.

I have a 2000 Chevy Tahoe- 5.3 and a 06 Silverado with a 5.3 Flex fuel?

BECAUSE OF THE VERY HIGH ELECTRICAL CHARGE RUNNING THRU THEM EFFECTSRADIO/TV TRANSMISSIONS AND OTHER SENSITIVE ELECTRCAL CURRENTS.

Warning lights:?

To stop external interference

Auto transmission having trouble getting into 5th gear?

The resistors have 2 functions. The primary is to reduce radio frequency ignition noise for the car radio. The secondary is the reduce erosion of the spark plug electrode.

vauxhall corsa sluggish start first thing what can it be?

no point in adding anything They are all correct,
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