# 98' Corolla Cylinder 4 Misfire

**URL:** <https://community.cartalk.com/t/98-corolla-cylinder-4-misfire/46475>\
**Category:** Maintenance/Repairs\
**Tags:** cylinder, corolla, toyota, misfire\
**Created:** [March 22, 2010, 7:14pm UTC](https://community.cartalk.com/t/98-corolla-cylinder-4-misfire/46475 "2010-03-22T19:14:19Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mycroft57](https://avatars.discourse-cdn.com/v4/letter/m/8e8cbc/32.png) [@mycroft57](https://community.cartalk.com/u/mycroft57)\
**Post date:** [March 22, 2010, 7:14pm UTC](https://community.cartalk.com/t/98-corolla-cylinder-4-misfire/46475/1 "2010-03-22T19:14:19Z")

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We hooked my car up to a computer and found a cylinder 4 misfire. We systematically eliminated all of the obvious culprits; plugs, wires, coil, and fuel injectors. Any ideas? A valve problem?

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**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [March 22, 2010, 7:17pm UTC](https://community.cartalk.com/t/98-corolla-cylinder-4-misfire/46475/2 "2010-03-22T19:17:00Z")

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" A valve problem?"

No need to guess. Just check the compression.

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**Author:** ![hd72mm](https://avatars.discourse-cdn.com/v4/letter/h/9fc29f/32.png) [@hd72mm](https://community.cartalk.com/u/hd72mm)\
**Post date:** [March 22, 2010, 11:08pm UTC](https://community.cartalk.com/t/98-corolla-cylinder-4-misfire/46475/3 "2010-03-22T23:08:48Z")

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A wire that only misses 1 out of 10 or so times will cause a code.