harald_richter5
Captur Misfire Cylinder 3
Summary of the thread
A 2016 Renault Captur with 233,214 km is experiencing rough running and misfires, particularly at idle, with the check engine light on and reduced power during acceleration. The issue is identified as a misfire in Cylinder 3, suspected to be caused by a defective fuel injector. Suggestions include checking the spark plugs and considering potential injector or wiring harness issues. The problem was confirmed to be a defective injection valve, which was replaced, resolving the misfire and restoring smooth engine operation.
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4 comment(s)
harald_richter5 (community.author)
The error code indicates misfires on Cylinder 3. I haven't checked the plugs yet. Is it common for these engines to have injector issues? I had a similar issue on my old Megane and it turned out to be the coil pack.
sophie_weiss6
Cylinder specific misfire does point to an injector, or potentially the wiring harness to that injector. Given the mileage, it's plausible. With it isolated to one cylinder, and knowing you had coil issues on your Megane, you've likely diagnosed the fault correctly. Best to take it to a workshop for proper diagnosis and repairs. It'll be a far more reliable solution.
harald_richter5 (community.author)
I appreciate the confirmation. You were spot on! The local garage confirmed a defective injection valve on cylinder 3. It was replaced for 515€. Runs smoothly now, no more check engine light or rough running. Thanks again for your help!
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RENAULT
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CAPTUR
sophie_weiss6
Misfires and rough running on the Captur are often fuel-related. Have you checked your spark plugs? Poor throttle response can be a symptom as well. Which cylinder is reporting the misfire?