P0354 on Pontiac
Ignition Coil D Primary/Secondary Circuit Malfunction
P0354 on Pontiac vehicles indicates ignition coil d primary/secondary circuit malfunction. Au7o has documented this code across 1 Pontiac model — most commonly on Firebird. This is an ignition/engine code. The ignition coil boosts low battery voltage into the high-voltage spark that ignites the air-fuel mixture. P0354 means the engine computer detected a fault in the primary or secondary circuit of ignition coil 'D' — the coil isn't returning the proper signal when it's told to fire. This commonly produces a misfire, rough running, hesitation or reduced power, and ongoing misfires can damage the catalytic converter over time. Typical repair costs on Pontiac range from $400 to $1,000, depending on the specific model and root cause.
Common Causes of P0354
- •Failed ignition coil 'D'
- •Damaged wiring or corroded connector at the coil
- •Open or short in the coil primary/secondary circuit
- •Worn or fouled spark plug adding load to the coil
- •Poor power or ground supply to the coil
- •Faulty ignition driver in the ECM (less common)
P0354 on Pontiac by Model
Pontiac Firebird(1 issue)
- Firebird LT1 Optispark Distributor Failure1993-1997
1993-1997 Firebird/Trans Am with the LT1 5.7L V8 (same engine in Camaro Z28, Corvette C4, and some Buick Roadmaster/Caprice/Impala SS) suffers infamous Optispark distributor failure. The distributor sits at the front of the engine behind the water pump — coolant leaks from the water pump (or condensation from the front of the engine) drip directly into the Optispark and short the optical sensors. Symptoms: misfire, no-start, rough running in wet weather.
Looking for P0354 on a different make?
View P0354 across all makes →Frequently Asked Questions
What does P0354 mean on Pontiac?▼
P0354 stands for "Ignition Coil D Primary/Secondary Circuit Malfunction." This is an ignition/engine code. The ignition coil boosts low battery voltage into the high-voltage spark that ignites the air-fuel mixture. P0354 means the engine computer detected a fault in the primary or secondary circuit of ignition coil 'D' — the coil isn't returning the proper signal when it's told to fire. This commonly produces a misfire, rough running, hesitation or reduced power, and ongoing misfires can damage the catalytic converter over time. On Pontiac specifically, this code is documented across 1 model.
What causes P0354 on Pontiac vehicles?▼
Common causes on Pontiac: Failed ignition coil 'D', Damaged wiring or corroded connector at the coil, Open or short in the coil primary/secondary circuit, Worn or fouled spark plug adding load to the coil, Poor power or ground supply to the coil. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0354 on a Pontiac?▼
Repair costs on Pontiac range from $400 to $1,000, depending on the specific model and root cause.
Which Pontiac models have P0354 documented?▼
Au7o has documented P0354 on 1 Pontiac model: Firebird.