P0730
Incorrect Gear Ratio
Affects: Tiggo 7, Tiggo 8
On This Page
Quick Fix Summary
Common Causes
- •Low or dirty transmission fluid
- •Internal transmission failure
- •Faulty shift solenoid
- •Faulty TCM
How to Fix
- 1Check transmission fluid level and condition
- 2Test shift solenoids
- 3Transmission internal diagnostic
- 4May require rebuild
Estimated Repair Cost (Australia)
*Cost varies by model, location, and service provider. Get multiple quotes.
⚠️ Disclaimer: This information is for educational purposes only and does not constitute professional mechanical advice. Always consult a certified automotive technician for accurate diagnosis and repair. Repair costs are estimates based on Australian market data (July 2026) and may vary by location, model year, and service provider.
Safety notice: Fault codes related to engine, transmission, or braking systems should be addressed immediately. Delaying repairs may result in further damage or safety hazards.
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What does P0730 mean on a Chery?
P0730 means incorrect gear ratio. The most common cause is a faulty O2 sensor or exhaust leak.
How much does it cost to fix P0730 on a Chery?
Repair costs for P0730 typically range from $500 to $4000 AUD, depending on the root cause.
Can I still drive with P0730 code?
P0730 is a high severity code. Reduce driving and get it diagnosed as soon as possible to avoid further damage.
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