P1030 fault code: what it means

P1030: Valvetronic system moving too slowly. Rough idle and hesitation; often a worn motor or stiff shaft.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

1. worn Valvetronic motor
2. stiff eccentric shaft (old oil)
3. low battery voltage

P1030 by make

What the repair usually costs

• Throttle body clean and idle relearnNZ$90–NZ$190 · A$100–A$200
• Petrol fuel injectors (port injection, set)NZ$430–NZ$1,420 · A$400–A$1,360
• Coil packs and spark plugs (4-cylinder)NZ$280–NZ$1,000 · A$260–A$920
• EGR valve replacement or cleanNZ$350–NZ$1,710 · A$330–A$1,630

Not sure what P1030 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.