Resistor spark-plug for any computer-controlled engine!

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1/18/2011

Q: When should I use a resistor spark plug?

A: NGK “R” or resistor spark plugs use a 5k ohm ceramic resistor in the spark plug to suppress ignition noise generated during sparking.

NGK strongly recommends using resistor spark plugs in any vehicle that uses on-board computer systems to monitor or control engine performance. This is because resistor spark plugs reduce electromagnetic interference with on-board electronics.

They are also recommended on any vehicle that has other on-board electronic systems such as engine-management computers, two-way radios, GPS systems, depth finders or whenever recommended by the manufacturer.

In fact, using a non-resistor plug in certain applications can actually cause the engine to suffer undesirable side effects such as an erratic idle, high-rpm misfire, engine run-on, power drop off at certain rpm levels and abnormal combustion.

http://www.ngksparkplugs.com/techinfo/spark_plugs/faq/faqresistor.asp

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How often should spark plugs be replaced?

1. For standard spark-plugs, it is roughly 45,000 miles.

2. For platinium spark plugs, it is roughly 100,000 miles.

Recommandation:  Option 1 is better!

http://www.aa1car.com/library/cm1196.htm

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How to Replace Spark Plugs in a Toyota Tacoma

The Toyota company suggests that all spark plugs be replaced between 60,000 and 100,000 miles, depending on the use of the vehicle. Toyota Tacoma trucks used for large amounts of towing need their spark plugs to be replaced every 60,000 miles.

Instruction

 
1. Turn the engine off and allow it to cool. Never work on a Toyota Tacoma engine while it is still warm. Locate the spark plug cover on the engine. On some Toyota Tacoma engines, the cover is across the top of the engine. On others, it is along the side. Remove the cover to reveal the ignition coils and spark plugs wires. The spark plug wires are plugged directly into the engine and the ignition coils are in the tip of the spark plug wire.

2. Remove the coil and wire from the spark plug. Twist and pull the plug out of the engine. Remove the spark plug from the cylinder well with a socket extender and socket wrench. Turn the wrench to the left to unscrew the spark plug from the engine.

3. Discard the old spark plug and apply a coat of anti-seize compound to the threads of the new spark plug.

4. Insert the new spark plug into the socket. Use the socket and extension to screw the spark plug into place.

5. Test the spark plug’s tension with the tension testing tool. The spark plug tension may range between 11 and 15 foot pounds, depending on the size of the spark plug. The correct tension is indicated on the spark plug’s packaging.

6. Return the ignition coils and spark plug wires to the engine and turn it to lock the plug in place. Repeat the entire the process with the remaining spark plugs.

7. Replace the spark plug cover when all of the spark plugs are replaced.

http://www.ehow.com/how_4484645_replace-spark-plugs-toyota-tacoma.html

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