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Old 03-29-2016, 12:03 AM   #1
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Join Date: Mar 2016
Location: Toronto
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Exclamation CEL help

Hello everyone,

I recently purchased a 2003 boxster w/ 65k miles in very good condition.

I noticed that the CEL comes on when the engine is pushed near redline. The code is cylinder 1 misfire. First thing I did was change the sparkplugs. Then I switched the ignition coil from cylinder 1 to cylinder 2. Still having the same problem.

Any suggestions are appreciated

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Old 03-29-2016, 07:53 AM   #2
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Join Date: Jan 2014
Location: Seattle
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I've had a cylinder misfire code from a loose fuel injector wire. It didn't seem to be engine rev related for me, but you might want to check that connection.
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Old 03-29-2016, 09:09 AM   #3
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I'm not sure if that's what it is because it had happened one time in other cylinders as well.

At one point in a long trip (after passing with a high RPM), I had multiple codes go off, for cylinders 1, 2 & 6.

There is also a strange smell from the exhaust (smells kind of like brakes) which causes me to think it may be the cat converter.

Any thoughts?

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cel engine check light

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