Question about Jeep Wrangler
Thanks for using FixYa. There is a square headlight daytime module mounted on the firewall under the hood in front of the passenger seat. Unplug it for normal operation. Check the exhaust manifold for any cracks as well. The cracks are letting noise out and fresh air in as well. This fresh unburned air makes the oxygen sensor think that the engine is not getting enough fuel, so the computer increases the fuel injector pulse width. Please do accept the solution if the issue is resolved or else revert for further assistance.
Posted on Feb 05, 2010
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Posted on Jan 02, 2017
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