Pontiac Firebird P1682: Ignition 1 Switch → Circuit 2

  P1682 is a diagnostic trouble code that indicates that your Pontiac Firebird’s ignition switch is having a voltage problem.  It is typically caused by a faulty ignition switch, although there can be other causes as well. There are two “circuits” to the ignition switch.  The first one goes to the ECM through the throttle … Read more

Pontiac Firebird Radiator Leak: Symptoms, Causes, Fix

A Pontiac Firebird can be prone to radiator leaks for a variety of reasons, and it is important to address them promptly to avoid costly engine damage. If a radiator leak is left unchecked, it can cause the Pontiac Firebird to overheat, potentially leading to severe long-term damage, such as a blown head gasket or … Read more

Pontiac Firebird Leaking Heater Core Diagnosis

One of the most common problems that can happen to a vehicle is a heater core leak.  If your Pontiac Firebird has a leaking heater core, it is not a breakdown risk.  Although, it is necessary to make sure that the lost coolant is replaced.  It can cause damage to the vehicle in other ways, … Read more

Pontiac Firebird Bad Starter → Symptoms & Diagnosis

  One of the most common problems that can occur in the life of a vehicle is a bad starter, that includes the Pontiac Firebird.  It is important to determine whether or not it’s a bad starter that is keeping the vehicle from turning over. If your Firebird is not starting, don’t assume right away … Read more

Pontiac Firebird: P0720 → OSS Circuit → Malfunction

P0720 is a generic OBD II trouble code, which means that it has the same meaning for your Pontiac Firebird as it would any other vehicle.  It indicates that your Firebird’s OSS (Output Shaft Speed Sensor) is reporting a malfunction. It’s typically caused by a bad OSS, or a wiring problem. The OSS works by … Read more

Pontiac Firebird P0108:  MAP Barometric Sensor → High Input 

  P0108 is a generic OBD-II trouble code.  It indicates your Pontiac Firebird’s MAP (manifold absolute pressure) sensor’s voltage reading is outside of the normal operating range.  The voltage is too high.  It’s most commonly caused by a bad MAP sensor, wiring issue, or vacuum leak. The MAP sensor measures the air pressure coming into … Read more

Pontiac Firebird P0443 Code: Meaning, Causes, How To Fix

P0443 is a very common OBD2 code.  It’s generic, meaning it has the same definition for the Pontiac Firebird as any other vehicle.   If your Firebird has this code, it indicates the EVAP purge control valve circuit is malfunctioning. This is typically caused by a short in the wiring to or from the purge … Read more

Pontiac Firebird: P0562 – System Voltage Low

P0562 is a common OBD-II trouble code.  It’s a general code, which means that it means the same thing for any vehicle, including the Pontiac Firebird.  P0562 indicates that the system voltage is below 10 volts for a solid minute.  With the engine running, the system voltage should be 14.1-14.4 volts, and it’s typically caused … Read more