Same fault as P2177 but on the second cylinder bank of a V engine.
P2179 — also written P2179, P 2179, 2179 — is the OBD-II code for system too lean off idle (bank 2). Same code, same fix: this page covers every spelling of it.
P2179 is a fuel & air fault code, typically costing £80–£700 to put right in a UK garage.
What causes P2179?
- Vacuum or boost leak on bank 2
- Injector restriction on bank 2
- Fuel supply weakness affecting both banks
- MAF under-reading
How P2179 is fixed
- Compare bank 1 and bank 2 fuel trims
- Smoke-test bank 2 intake
- Test fuel pressure and injector flow
P2179 repair cost in the UK
Most P2179 repairs land between £80–£700 including parts and labour. The spread is wide because the cheap fix (a sensor, a hose, a leak) and the expensive fix (a major component) throw the same code — which is why a proper diagnosis before parts are bought saves the most money.
Can you drive with P2179?
Yes short-term with gentle driving.
Urgency: medium.