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Old 11-26-2022, 09:57 PM   #1
FRS2SLOW
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Join Date: Nov 2022
Drives: 2014 FRS, JRSC, Catless
Location: California
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Help - 2014 FRS Rough Idle and Cylinder 4 Misfire

Hi All,
I'm trying to diagnose a problem with my car. From my log I'm getting very rough idle after startup, high misfires on cylinder 4, and shows injection mode 1.

When I rev and hold the engine at 2000 rpm, then 3000rpm, then 4000rpm it moves to injection mode 3 and there are no misfires. After idling back down it again misfires in mode 1 and is smooth in mode 2.

Does this mean that my port injector in cylinder 4 is bad or clogged? Here's a link to the data log.

https://datazap.me/u/frs2slow/frs-ro...0&data=7-18-32
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