What does trouble code 32 on GM OBD mean?
Trouble Codes › GM OBD Trouble Codes › GM Code 32. CODE 32 – EGR System. Trouble Code 32 indicates that the Exhaust Gas Recirculation (EGR) valve diaphragm is not where the ECM expects it to be.
How to check trouble codes on a 1994 GM?
Checking trouble codes from your 1994 GM vehicle does not require the use of special equipment, such as a scan tool. Extracting trouble codes from your vehicle lets you track down and diagnose faulty components in an expedited manner. The computer uses the “Check Engine” light located on your dashboard to display the stored trouble codes.
Why is my GM code 32 EGR not working?
Trouble Code 32 indicates that the Exhaust Gas Recirculation (EGR)valve diaphragm is not where the ECMexpects it to be. The ECM controls the diaphragm with a Pulse-Width Modulated (PWM) waveform. The EGR has a vacuum bleed solenoid that adjusts the vacuum applied to the EGR valve based on this pulse width.
How to read code without scan tool on 1994 GM?
Insert the pointed ends into the furthest two top-right diagnostic connector terminals. After bridging the two top right terminal connections on the diagnostic connector, switch the ignition to the “ON” position. Watch the “Check Engine” light on your dashboard. It should flash once, pause, and flash two more times in succession.
What does code 32 mean on a GM OBD?
Depending on the model, code 32 can refer to three different systems. Please choose from one of the above links for specific information on each system. The ECM monitors the Baro Sensor circuit. Code 32 can set when the circuit is open or shorted. 32 – Barometric Pressure Sensor Circuit fault.
What are the diagnostic codes for General Motors?
GM Specific Powertrain Diagnostic Trouble Codes. P1117 Engine Coolant Temp. Signal Out-Of-Range Low. P1118 Engine Coolant Temp. Signal Out-Of-Range High. P1139 HO2S Insuff. Switching Bank 1 Sensor 2. P1187 EOT Sensor Ckt. Low Voltage.
What’s the problem with the OBD code 15?
GM OBD Trouble Code 15 Engine Coolant Temperature Sensor Error (Low Temp Indicated) The Coolant Temperature sensor sends a signal to the Engine Control Computer based on the temperature of the engine. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.
What are the OBD codes on a GM vacuum sensor?
GM OBD1 Codes 13 O2 sensor or circuit 56 vacuum sensor Quad drvier B (3.8L) 58 Trans code-TTS temp high 59 Trans code-TTS temp low 61 O2 sensor signal faulty