Fault codes / P0335
ECU sees no crank teeth. No injection: cranks dead or dies on the road. Sensor sits at the flywheel on Howo.
Which trucks see it
WD615/WP10 Howo A7, WP12/WP13, MC11 Sitrak. P0340 is cam — different problem.
Symptoms
- cranks no start
- stalls and will not catch
- no RPM while cranking
Likely causes
- Bad CKP or air gap, swarf on the magnet.
- Open / oil in the plug.
- Damaged reluctor ring.
What to check
- Pull the sensor, check gap and metal dust.
- Ohm the shielded wire.
- Scope while cranking.
- Do not jam a new sensor in with the wrong gap.
Can you keep driving
No start — tow. If it is intermittent, you can limp, but it may leave you on the highway.
Look up the code in the service
Other codes
P0087— low common-rail pressureP0088— high common-rail pressureP1011— HP pump metering valve faultP0093— large fuel leak / CAN trap — FMI neededP0193— rail pressure sensor high signalP0299— boost below targetP2263— turbo / boost performanceP2563— VGT position sensor — range / performanceP0340— camshaft sensor (CMP) — FMI neededP0401— EGR insufficient flowU0100— lost communication with engine ECUU0101— lost communication with TCMU0155— lost communication with instrument clusterP0562— system voltage lowP0201— cylinder 1 injector circuitP0480— fan control circuitP0217— engine overheatP0116— water in fuel (Weichai table) / not always coolant SAEP2509— intermittent ECM power (no OEM in DB)SPN 2898— without FMI — not a diagnosis (config / Weichai grid)SPN 729— intake heater — FMI needed