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Will a smog test deterime if you have a bad spark plug or wire?
Wiki User
∙ 11y ago
No. It will just report that emissions are too high. The report may list spark plugs or wires as a possible cause for the high emissions. But the test itself cannot pinpoint them as the cause.
Wiki User
∙ 11y ago
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Can automotive smog test tell you if you have a bad wire or spark plug?
A smog test may indicate that one or more cylinders is not firing, but it will not tell which one or the cause. An error code in the computer may narrow it down, but it will generally only point in a direction, not a specific thing. If the vehicle is equipped with an OBDII Engine management system then A defective spark plug or spark plug wire will usually cause an engine misfire which will usually set a stored code, depending on the severity. A misfire will cause higher emissions that will show up in a smog test but the failure results will not specificially pin-point the failed component. Many instances of engine misfires and smog test failures can be due to the OEM spark plugs have never been replaced, especially if they have > 60,000 miles. Many times I have corrected smog failures due to mis-fires with spark plug replacement.
How do you identify a broken spark plug?
take a test light. ground the test light to the battery then take the test light and move it around the suspect spark plug if the plug wire or spark plug are cracked or defect the spark will go to the test light and you will see the spark. if you don't see any spark its not broken.You can also use CheckSpark to quickly evaluate all your plugs and identify bad plugs and wires in seconds.
Could you test spark plug wires with test light?
Yes, its just like a spark plug tester. Just stick the point end between the sparkplug boot and the clip inside the boot then connect the alligator clip end to the spark plug. viola spark tester.
How do I test my 2001 Ford Focus to see if I am getting fire to a cylinder?
Pull the wire off the spark plug, pull the spark plug out, plug the spark plug back into the wire, then have someone turn the engine over. You should see a blue spark jumping around the very bottom of the spark plug.
How do you test for spark on a 2000 Kia Sportage?
remove spark plug from engine leave the wire connected and try to start it id the spark plug sparks your good
How do you test for spark on a 1988 Jaguar XJ6?
Remove the spark plug wires from the spark plug. Be sure to leave the other end attached to the distributer cap. Then remove that spark plug from the cylinder with a spark plug wrench and re-insert the plug into the spark plug wire boot that you previously removed. Have someone turn the inition key as if starting the engine. Stay clear of moving parts etc. while observing the spark plug end. You should see a spark.
How to test water pollution?
to take a sample an inspect it under a microscope and deterime if water is polluted
How do you test a coil?
If you have access to a spark tester, use it. Otherwise, remove the spark plug, reconnect it to the spark plug wire, and rest the tip or threads on a good engine ground, AWAY from the spark plug hole. Attempt to start it, and watch for spark. If none, replace the spark plug and try again. If still no spark, the magneto coil may be faulty.
How do you test a magneto coil?
If you have access to a spark tester, use it. Otherwise, remove the spark plug, reconnect it to the spark plug wire, and rest the tip or threads on a good engine ground, AWAY from the spark plug hole. Attempt to start it, and watch for spark. If none, replace the spark plug and try again. If still no spark, the magneto coil may be faulty.
How do you test if my engin is getting spark?
take the number one plug out of the engine. plug the wire back on. place somewhere the plug will be grounded. have someone turn the engine over and see if there is spark.
How do you test a coil on a 1978 Suzuki RM80 and what kind of reading should you get off it?
remove the spark plug plug it into the coil turn off the lights in the garage and kick start the bike there should be a nice bright spark at the end of the spark plug if it's weak then your spark plug is failing if there is no spark coming at all then you have a ignition malfunction
How do you test a spark plug wire?
Connect a triming light to it and see if it fires
