P1177 Chevrolet Equinox 2 OBD Code

OBD/2 P1177 error code description and symptoms.

Catalytic converters must be warm before they can work properly. On a cold start the PCM provides a rich mixture to keep the cold engine running.
All that extra fuel goes into the catalytic converter. But the exhaust isn't very hot, because, ah, the engine is pretty cold. GM has employed several strategies to fire up the catalytic converter quicker and reduce cold start emissions. One way is to use a secondary air pump that pumps outside air directly into the catalytic converter.

In most cases, the TCM is integrated into a single housing with the PCM. Nevertheless, the section of the module which controls (automatic) transmission function may be powered up separately. In any case, the TCM is typically powered using switched (only present with the ignition switch in the ON, start, or run position) voltage. This circuit is normally equipped with a fuse, fusible link, and/or a relay. Frequently, the PCM and TCM are powered using the same relay albeit by separate circuits. Access to a reliable vehicle information source will yield necessary details of the TCM power circuit for the specific vehicle in question.

P1177 Chevrolet Equinox 2 Error Code Repair Process :

The scent may P1177 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such P1177, so if the inside of your car p1177 synchronization fault as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Common Causes of Chevrolet Equinox 2 P1177 OBD2 Code

A common cause of code P1177 is the failure of P1177 Synchronization Fault, but there are several other possible causes as well, such as ;

Dirty Oil
Faulty TCM or TCM programming
Faulty variable valve timing (VVT)
Fuel injector leaks

P1177 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P1177 Chevrolet Equinox 2 OBD Code

P1177 Chevrolet Equinox 2 Error Code Repair Process :

Common Causes of Chevrolet Equinox 2 P1177 OBD2 Code

P1177 code for other Chevrolet cars