Pre-turbo EGT sensor drift — common on DPF diesels blocking active regen.
P2080 — also written P2O8O, P 2080, 2080 — is the OBD-II code for egt sensor range/performance (bank 1, sensor 1). Same code, same fix: this page covers every spelling of it.
This is your Bank 1 Pre-Turbo temperature sensor telling the ECU the numbers don't make sense. It's a classic plague on the Vauxhall Insignia and Euro 5/6 VW vans.
P2080 is a emissions fault code, typically costing £90–£400 to put right in a UK garage.
What P2080 actually feels like to drive
- Car enters 'Limp Home' mode with a sudden loss of power on the A9.
- DPF warning light keeps coming on because the car is refusing to regenerate.
- Engine Management Light (EML) stays on, but the car drives perfectly fine (at first).
- Fuel economy has tanked because the ECU is running a rich 'safe' map.
- Service Vehicle Soon message appears on the dash (common on Vauxhalls).
What causes P2080?
- Aged EGT sensor
- Carbon-fouled tip
UK vehicles that throw P2080 most often
- Vauxhall Insignia 2.0 CDTi (A20DTH) 2009-2017
- VW Transporter T5/T6 2.0 TDI (Multiple engine codes) 2010-2019
- Nissan Qashqai 1.5 dCi (K9K) 2013-2018
- Mercedes-Benz Sprinter 2.1 CDI (OM651) 2011-2018
- Ford Focus 1.6 TDCi (DV6) 2011-2015
How P2080 is fixed
- Replace pre-turbo EGT sensor
The P2080 misdiagnosis that wastes money
I’ve lost count of how many times I’ve seen brand-new turbochargers fitted to Insignias or Transporters because a 'specialist' saw a lack of boost and assumed the worst. They ignore the P2080 and jump to the big-ticket items. In reality, modern ECUs will cut boost or stop DPF regeneration entirely if they can't trust the temperature reading at Sensor 1. You can throw £1,500 at a new turbo, but if that £120 EGT sensor is drifting or slow to respond, the car will still be in 'Limp Mode' before you get it out of the car park.
What a UK garage should charge for P2080
An independent garage like mine will charge about £50 to £80 for a proper diagnostic plug-in. A genuine Bosch or OE-quality sensor usually runs between £90 and £140. Labour is the wildcard—if it's easy to reach, it's a 30-minute job (£40), but if it's seized into the manifold (which they usually are), we might be drilling it out for two hours. Expect to pay £200-£300 total. Main dealers? You’re looking at £450+ once they add the 'dealer premium' on the part.
P2080 repair cost in the UK
Most P2080 repairs land between £90–£400 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.
Bob's tip on P2080
If you're taking it to a garage, insist they do a 'cold soak' live data check. This means looking at the sensor readings first thing in the morning before the engine has even turned over. At that point, the EGT sensor should match the coolant and ambient air temperature. If it's reading 200°C when the car's been sitting in a frosty Perth car park all night, the sensor is toast. Also, don't let them fit a 'no-name' sensor from an auction site; I only ever use Bosch or NGK/NTK. The cheap ones have the wrong resistance and will have the EML back on within a week.
Can you drive with P2080?
Yes but regen won't complete.
Urgency: medium.