Suzuki Forenza number 1 cylinder not firing issue unresolved on Suzuki Forenza

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Suzuki Forenza owners report experiencing difficulties with the number 1 cylinder not firing, which can complicate vehicle performance. These issues may arise from improper ignition sequence, as the firing order is crucial for the engine's operation. Trouble codes like P0301 can help identify a misfire in cylinder 1, but accurately diagnosing the specific problem is essential for effective repair. Common diagnostic steps include checking the spark plug, ignition system, and fuel delivery. Additionally, compression checks and examining the spark plug for wetness can provide further insights. Some owners find testing spark to the cylinder with a small screwdriver useful for identifying ignition issues. Monitoring exhaust headers for heat differences may also reveal underlying fuel or adjustment problems. A systematic approach is necessary to resolve the issue of the number 1 cylinder not firing in a Suzuki Forenza.

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