2018 Wrangler jk.....cant figure this one out. cyl.3 misfire replaced the coil and camshaft sensor...still misfiring. found broken coil wire and repaired. fine for a while now its doing it again. no broken wire. anyone have any input on this ?
PO2308, PO303
- Thread starter superdave74
- Start date
Since you've replaced the coil and camshaft sensor, and repaired the broken coil wire, here are a few more things you could check:
- Sometimes, a worn or fouled spark plug can cause a misfire. If you haven't already, try replacing the spark plug for cylinder 3.
- Check the fuel injector for cylinder 3. It could be clogged or malfunctioning, preventing proper fuel delivery.
- Performing a compression test on cylinder 3 can help determine if there's an internal engine issue, such as a valve problem or a head gasket leak.
- Double-check the wiring and connectors related to the ignition system for any signs of wear or corrosion. Sometimes the issue can be intermittent.
- If you haven't done so recently, recheck for any other OBDII codes that might give more insights into the issue. There could be another underlying problem that's causing the misfire.
- Ensure that the engine ground connections are secure and clean, as a poor ground can sometimes cause electrical issues.