Drivable short-term, but fix now to avoid damage.
This code means the engine computer detected an electrical fault in the primary or secondary circuit of ignition coil G (typically cylinder 7, found on V8 and larger engines). It usually points to a failed ignition coil, though wiring damage or a bad connector can also set it. It's normally fixed by replacing the affected coil and checking its wiring and connector.
$90 – $300
Varies by vehicle and root cause.
For short trips, usually yes, but you shouldn't rely on it. A misfiring coil can damage your catalytic converter and leave you with weak power. Get it diagnosed soon and avoid hard acceleration until then.
Most repairs run between $90 and $300. A single ignition coil and labor are usually inexpensive, but wiring repairs or replacing a fouled spark plug can add a bit to the total.
It's worth taking seriously. The car may still run, but the misfire it causes can harm the catalytic converter and worsen over time. It's generally an affordable fix when caught early.
The 'G' identifies a specific ignition coil, which on most engines corresponds to cylinder 7 and is found on V8 or larger engines. The code tells the technician exactly which coil's circuit reported the fault.