Car hesitating and limp mode after warm-up

CountryDriver2024 · Nov 25, 2024

Hello, everyone! I had to replace the motor on my car, and since then my car has run fine when cold but now it just hesitates and goes into limp mode (P0336 code) after driving 12–15 miles. One RPM reading spikes to over 15k while the other stays normal. Could a failing sensor (crankshaft or camshaft) be the issue? Any advice?

AlfredSteven_001 · Nov 26, 2024

Try inspecting the crankshaft position sensor (CKP) connector and harness for any damage, corrosion, or oil contamination. The CKP sensor is crucial for determining engine RPM, and since there are no crank/cam correlation codes, a faulty CKP sensor might be causing the intermittent RPM issue, especially when the engine is hot.

hot_papieeto3 · Wednesday at 8:53 PM

My 2014 Cooper S had similar issues. It turned out to be a faulty coilpack on cylinder 3. This can trigger various error codes and confuse the ECU.

Car hesitating and limp mode after warm-up

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