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
wires

2 Answers

116,325

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 people found this helpful.
65,555

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

Your Answer:

Toyota Corolla Experts

  • #1
    Tom Demyan
    Reputation
    2,740
  • #2
    tennisshoes
    Reputation
    1,900
  • #3
    tenspeed
    Reputation
    1,880
View All

Related Models For Sale

Used Toyota Camry
772 Great Deals out of 74,279 listings starting at $1,250
Used Honda Civic
414 Great Deals out of 49,826 listings starting at $1,495
Used Honda Accord
585 Great Deals out of 104,730 listings starting at $1,225
Used Toyota RAV4
553 Great Deals out of 79,941 listings starting at $1,995
Used Nissan Altima
754 Great Deals out of 67,300 listings starting at $1,495
Used Hyundai Elantra
454 Great Deals out of 48,945 listings starting at $1,700
Used Nissan Sentra
542 Great Deals out of 47,187 listings starting at $990
Used Toyota Tacoma
444 Great Deals out of 48,834 listings starting at $2,994
Used Honda CR-V
637 Great Deals out of 78,955 listings starting at $2,195
Used Hyundai Sonata
383 Great Deals out of 47,957 listings starting at $250
Used Honda Civic Coupe
94 Great Deals out of 10,888 listings starting at $1,300

Used Cars For Sale

2018 Toyota Corolla For Sale
41,217 listings starting at $13,900
2017 Toyota Corolla For Sale
85 Great Deals out of 4,286 listings starting at $10,500
2016 Toyota Corolla For Sale
143 Great Deals out of 5,882 listings starting at $8,700
2015 Toyota Corolla For Sale
186 Great Deals out of 6,186 listings starting at $7,147
2014 Toyota Corolla For Sale
53 Great Deals out of 1,735 listings starting at $6,900

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.