Dodge Diagnostics Library
Dodge platforms are often straightforward to diagnose if you treat them like a system: voltage and grounds first, then mixture control, then plausibility. This library focuses on the tests that stop expensive guessing.
Platform notes (UK/EU/US)
- HEMI V8 drivability: a rough idle or random misfire is often ignition/mixture/EVAP related before it’s mechanical. Use misfire counts + trims before chasing “tick” stories.
- Pentastar V6 (3.6): treat air/fuel control and sensor plausibility as first pass. A biased MAP/MAF, vacuum leak, or purge issue can masquerade as “needs coils”.
- EVAP small leaks are extremely common on US-spec vehicles. Don’t assume it’s “nothing” — they can create intermittent idle quality complaints and confusing long-crank behaviour after refuelling.
- Voltage-related cascades: weak batteries, poor grounds, or alternator regulation issues can trigger multiple unrelated codes. Always capture system voltage under load before parts-darting.
- Market differences: UK/EU imports and variants exist, but the diagnostic logic stays the same. Symptoms + live data beat folklore.
Start here (popular models)
Charger
LD platform reality: idle misfires, EVAP small leaks, cooling/thermostat plausibility, and traction control complaints caused by sensor data.
Open model →Durango
Family SUV + tow use: misfire/trim logic, EVAP leaks, voltage cascades, and “ABS/traction” faults that are often wheel-speed plausibility.
Open model →Best workflow: read codes, then capture a short live-data log (idle + light cruise + one moderate pull). That single log usually tells you whether you’re chasing air/fuel control, ignition, boost/air leaks, or a sensor plausibility issue.