These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.

requested and delivered injection pulses disagree

Maxima overheating diagnosis separates cooling and sensor evidence

Sustained transmission sump heat needs a temperature history

Engine overspeed limits differ between the documented diesel examples

Cylinder 7 injection timing can mean the current pull-in interval

The cylinder 8 injector can fail a current-rise timing check

Cylinder 9 Injection Timing

Cylinder 10 Injection Timing

Cylinder 11 Injection Timing

Cylinder 12 Injection Timing

A secondary throttle processor can reject a signal that the primary accepts

Throttle sensor 2 rationality also uses the air-charge model

Throttle-position channel 2 below its reference-relative range

Throttle-position channel 2 above its allowed signal range

Intermittent throttle sensor B is different from an A/B mismatch

Sensor C refers to the second digital throttle in this Ford strategy

bank-2 throttle position checked against redundant evidence

bank-2 throttle sensor 1 voltage below range

A high bank 2 throttle-position input is not a position mismatch

A short interruption at the second throttle can precede a communication-loss code

Charge Air Cooler Bypass Control A Circuit /Open

Charge Air Cooler Bypass Control A Circuit Low

Charge Air Cooler Bypass Control A Circuit High

Charge Air Cooler Bypass Control B Circuit /Open

Charge Air Cooler Bypass Control B Circuit Low

Charge Air Cooler Bypass Control B Circuit High

The fuel pump power-relay circuit is not the pump pressure test

Low secondary fuel-pump circuit feedback needs the correct system context

High secondary fuel-pump circuit status is an electrical category

Fuel Pump Secondary Circuit Intermittent

Overboost relative to demand or basic boost pressure

verify the VAG boost-regulation definition before testing

Boost-sensor plausibility across several airflow models

Boost-pressure signal below its electrical range

A high boost-sensor signal can also indicate an open circuit

Turbocharger/Supercharger Boost Sensor B Circuit

Intercooler pump command and circuit feedback disagree

Intercooler coolant-pump control circuit held low

Intercooler coolant-pump control circuit held toward power

Manifold Absolute Pressure - Turbocharger/Supercharger Boost Sensor A Correlation

Compass pressure-plausibility warning during cold acceleration

Low pump current matters only with the pump commanded

Boost-sensor plausibility is checked with the engine stopped

Low boost-sensor voltage is distinct from low boost pressure

High boost-sensor voltage requires an electrical interpretation

Wastegate solenoid A open-circuit feedback while switched off

Confirm the boost-valve monitor before using a generic label

Wastegate solenoid A low-side output held toward ground

Wastegate solenoid A high feedback during an on command

An open wastegate-driver report requires a quiet diagnostic window

Hurricane wastegate performance fault and retaining-clip measurements

Wastegate output 1 low is reported by the H-bridge

Charge Air Cooler Bypass Control A Range/Performance

Charge Air Cooler Bypass Control A Stuck

Charge Air Cooler Bypass Position Sensor A Circuit

Charge Air Cooler Bypass Position Sensor A Circuit Range/Performance

Charge Air Cooler Bypass Position Sensor A Circuit Low

Charge Air Cooler Bypass Position Sensor A Circuit High

Wastegate output 1 high identifies a short-to-supply report

Injection Pump Fuel Metering Control A (Cam/Rotor/Injector)

Injection Pump Fuel Metering Control A Range/Performance (Cam/Rotor/Injector)

Compass and Meridian diesel metering fault from harness chafing

Injection Pump Fuel Metering Control A High (Cam/Rotor/Injector)

Injection Pump Fuel Metering Control A Intermittent (Cam/Rotor/Injector)

Injection Pump Fuel Metering Control B (Cam/Rotor/Injector)

Injection Pump Fuel Metering Control B Range/Performance (Cam/Rotor/Injector)

Injection Pump Fuel Metering Control B Low (Cam/Rotor/Injector)

Injection Pump Fuel Metering Control B High (Cam/Rotor/Injector)

A fuel-pump command circuit fault differs from invalid command data

The fuel pump module is reporting invalid control data

A low lift-pump control signal depends on the engine architecture

High feedback in the low-side fuel-pump control path

Brief boost-sensor excursions are counted across the trip

Turbocharger/Supercharger Boost Sensor B Intermittent/Erratic

Injection Pump Fuel Metering Control B Intermittent (Cam/Rotor/Injector)

Cylinder 1 injector low-side circuit checked in the off state

Cylinder 1 injector short-to-power feedback when commanded on

Cylinder-one balance depends on learned crankshaft information

Cylinder 2 injector circuit low versus normal switching

Cylinder 2 injector high-circuit evidence from an active driver