P2135 Code: Throttle/Pedal Position Sensor/Switch “A”/”B” Voltage Correlation
Today’s vehicles are nothing short of highly complex when compared to those of previous generations. …
Engine Codes
P0405 Code: Exhaust Gas Recirculation Sensor A Circuit Low
In the 1970s, new emissions standards forced automakers to reduce carbon footprints. But the required …
P0137 Code: O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2)
Today’s vehicles use a web of sensors and modules for efficiency and emissions compliance. Oxygen …
P0443 Code: Evaporative Emission Control System Purge Control Valve Circuit Malfunction
Since the 1970s, automakers worked to cut emissions through new technology per legislation. But with …
P0410 Code: Malfunctioning Secondary Air Injection System
Today’s emissions systems are complex, with many parts working in unison for clean exhaust. But …
P0136 Code: Oxygen Sensor Circuit Malfunction (Bank 1, Sensor 2)
Seeing the check engine light come on can raise alarm bells, but you shouldn’t automatically …
P0505 Code: Idle Air Control System Malfunction
A check engine light and poor performance are worrisome signs. But code P0505 points to …
P0327 Code: Knock Sensor #1 – Circuit Low Input (Single Sensor or Bank 1)
Even reliable cars and trucks can unexpectedly break down, leaving drivers questioning the cause. But …
P0336 Code: Crankshaft Position Sensor “A” Circuit Range/Performance
That dreaded Check Engine light spells trouble to most drivers. Costly repairs! Lost time! But …
P0133 Code: O2 Sensor Circuit – Slow Response
A vehicle’s diagnostic system detects faults, storing them as trouble codes. These codes point to …
P2002 Code: Diesel Particulate Filter Efficiency Below Threshold
Diesel engines are workhorses – until they’re not. Mechanical issues inevitably crop up, throwing quite …
P0157 Code: O2 Sensor Circuit Low Voltage (Bank 2, Sensor 2)
Today’s computer-controlled engines rely on oxygen sensor feedback to optimize combustion. DTC P0157 indicates an …