P1592 fault code: what it means

P1592: Altitude (barometric) sensor and boost sensor readings disagree. Limp mode can come on.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

1. corroded ground points
2. faulty boost pressure sensor (G31)
3. wiring fault to G31

P1592 by make

What the repair usually costs

• ABS pump / control module replacement (reman exchange or new)NZ$850–NZ$3,210 · A$780–A$2,880
• CVT valve body replacement (remanufactured, in car)NZ$1,280–NZ$2,420 · A$1,200–A$2,400
• Automatic transmission rebuild, 6-speed and up (sent to specialist)NZ$7,190–NZ$13,080 · A$6,190–A$11,830
• DSG / dual-clutch mechatronic unit replacement (new or reman)NZ$4,300–NZ$7,160 · A$3,750–A$6,390

Not sure what P1592 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.