Spark plug wires ohm readings

Asked by Aug 20, 2016 at 11:37 AM about the 1996 Toyota Corolla Base

Question type: Maintenance & Repair

hey Peter fin I have a 1996 toyota corolla and I
have read my spark plug wires with an ohm meter
and it read my first spark plug wires at 1.33 and
the second one is 1.06 and the third is 0.89 and
fourth on 0.86 should I replace my spark plug

2 Answers


Make sure the spark plug wire does not have an open circuit, and as a general rule, the resistance should not exceed 1,000 ohms per inch (but may be permissible by some O.E. manufacturers' specifications). To check, perform the following steps: Remove the spark plug wire from the engine. Using an ohmmeter, measure the resistance of the spark plug wire from terminal end to terminal end. If no reading is observed, the spark plug wire has an open circuit. Measure the length of the spark plug wire in inches. Divide the resistance reading by the length of the spark plug wire to determine ohms per inch. Right out of the book. The last time I say resistance this low was on a tractor that had solid core wires. Yes replace the plug wires.

2 of 2 people found this helpful.

If the wires are over 10 years old or have more than 100,000 miles on them I would replace them.

Your Answer

Add photo

Related Questions

Search Toyota Corolla Questions

Toyota Corolla Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,400
#2 tenspeed
Reputation 1,810
#3 tennisshoes
Reputation 1,650
View All

Related Models For Sale

Used Toyota Camry
1,000 Great Deals out of 90,532 listings starting at $650
Used Honda Civic
634 Great Deals out of 88,620 listings starting at $995
Used Honda Accord
803 Great Deals out of 84,448 listings starting at $988
Used Toyota RAV4
732 Great Deals out of 71,362 listings starting at $1,895
Used Nissan Altima
1,006 Great Deals out of 81,095 listings starting at $1,200
Used Nissan Sentra
440 Great Deals out of 54,031 listings starting at $900
Used Hyundai Elantra
567 Great Deals out of 52,031 listings starting at $1,499
Used Toyota Tacoma
524 Great Deals out of 40,493 listings starting at $2,495
Used Honda CR-V
868 Great Deals out of 60,603 listings starting at $988
Used Hyundai Sonata
743 Great Deals out of 50,703 listings starting at $1,400

Used Cars For Sale

2017 Toyota Corolla For Sale
14 Great Deals out of 44,356 listings starting at $12,995
2016 Toyota Corolla For Sale
136 Great Deals out of 6,754 listings starting at $10,395
2015 Toyota Corolla For Sale
129 Great Deals out of 5,462 listings starting at $8,977
2014 Toyota Corolla For Sale
196 Great Deals out of 6,039 listings starting at $7,444
2013 Toyota Corolla For Sale
48 Great Deals out of 1,745 listings starting at $4,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.