# Car surges and tops at about 3000rpm's

**URL:** <https://community.cartalk.com/t/car-surges-and-tops-at-about-3000rpms/37202>\
**Category:** Maintenance/Repairs\
**Tags:** hyundai, accent\
**Created:** [September 26, 2009, 10:52pm UTC](https://community.cartalk.com/t/car-surges-and-tops-at-about-3000rpms/37202 "2009-09-26T22:52:41Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![weirdjja](https://avatars.discourse-cdn.com/v4/letter/w/9d8465/32.png) [@weirdjja](https://community.cartalk.com/u/weirdjja)\
**Post date:** [September 26, 2009, 10:52pm UTC](https://community.cartalk.com/t/car-surges-and-tops-at-about-3000rpms/37202/1 "2009-09-26T22:52:41Z")

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I had a bad ignition coil and replaced it as well as the spark plugs and wires. The car now is limited in it’s rpm’s. Only gets to a guestimate of 3000 RPM’s then tops out. It also surges in idle. I’m guessing due to the bad ignition coil the CAT’s insides melted and so I gutted it to see if it would run better due to back pressure but doesn’t. Could this be a O2/Cat problem or do I have a larger issue. I checked the timing as well and it is within spec’s. Don’t know where to go from here.  
  
 Help…