I'm getting no spark, I've got new plugs.
Mar 17, 2023 at 12:50 PM
No spark, how do i check the coil pack?
1999 TOYOTA COROLLA
MACCARTHY
- MEMBER
- 1 POST
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JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 POSTS
Hi,
Do you have spark at any of the spark plugs? If you don't, I don't think both coils would have failed at the same time. Chances are it would be a faulty crankshaft position sensor. Take a look through this link and let me know if anything mirrors what you have experienced:
https://www.2carpros.com/articles/how-to-check-for-ignition-spark
If you have a live data scan tool, check for an RPM signal when cranking the engine. If there isn't one, the crankshaft position sensor is my first suspect.
As far as testing the coils, you need to test secondary coil resistance. If you look below, I attached the directions and the manufacturer's specifications.
Let me know if this helps or if you have other questions.
Take care,
Joe
See pics below.
Do you have spark at any of the spark plugs? If you don't, I don't think both coils would have failed at the same time. Chances are it would be a faulty crankshaft position sensor. Take a look through this link and let me know if anything mirrors what you have experienced:
https://www.2carpros.com/articles/how-to-check-for-ignition-spark
If you have a live data scan tool, check for an RPM signal when cranking the engine. If there isn't one, the crankshaft position sensor is my first suspect.
As far as testing the coils, you need to test secondary coil resistance. If you look below, I attached the directions and the manufacturer's specifications.
Let me know if this helps or if you have other questions.
Take care,
Joe
See pics below.
Images (Click to enlarge)
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Mar 17, 2023 at 10:50 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.