P2033 on Ford: Causes, Symptoms and Fix Cost
Quick Answer
Safe to drive (short-term)
P2033 on a Ford means the engine computer sees the signal from the exhaust gas temperature (EGT) sensor labelled bank 1 sensor 2 as higher than its normal range. Diesels carry several EGT sensors to protect the catalyst and to control particulate filter regeneration. On many diesels sensor 2 sits near the oxidation catalyst or the filter inlet, but the numbering differs by make, so confirm it in workshop data. On these sensors a high signal is most often a broken wire, a bad connector or a dead sensor, which makes the circuit read as open, rather than a real overheating. P2031 is the general circuit code and P2032 the low signal code for the same sensor.
- Severity
- Moderate · Emissions
- Typical repair cost, all makes
- €40-€220
Connect a standard OBD2 adapter (Bluetooth LE on iPhone) to your Ford and Skanyx tells you what P2033 means on that engine, whether it is safe to keep driving, and what the fix should cost. Free on iPhone and Android.
Get Skanyx freeWhat does P2033 mean on a Ford?
The Quick Answer above is the generic definition. What follows is the model-specific detail for the Ford models that log P2033.
Ford S-Max 2.0 TDCi
2006-2014
One owner report on a 2011 S-Max 2.0 TDCi with P2033 says temperature sensor 2, which sits in the particulate filter, stayed at 5.0 V when heated while sensor 1 changed as expected. The wiring to it was in poor condition and was repaired, but the codes stayed until a new sensor was fitted, after which no codes returned. It is a single forum report, so treat it only as a reminder to check wiring and sensor together.
Source: forum.forscan.org, en.wikipedia.org
Sources
- forum.forscan.org forum.forscan.org/viewtopic.php?p=5222
- en.wikipedia.org en.wikipedia.org/wiki/Ford_S-Max
What causes P2033 on a Ford?
Beyond the generic causes listed on the main P2033 page, these are the patterns noted for Ford models:
Failed sensor 2 in the particulate filter
: Ford S-Max 2.0 TDCi
Damaged wiring to the sensor
: Ford S-Max 2.0 TDCi
How to diagnose P2033 on a Ford with OBD2
- Read all stored codes and the freeze frame. Note any other exhaust temperature codes such as P2031 or P2032, and any DPF or regeneration codes such as P2463. A generic OBD2 reader shows the codes, the freeze frame and standard live data. Some diesels show exhaust temperature there, but most cars do not, and a reader cannot show the soot load or run a forced regeneration: those need manufacturer-level software.
- Find out which sensor the car means by sensor 2. Numbering differs between makes, and some diesels, such as the 2009 to 2014 VW 2.0 TDI, have four EGT sensors in the exhaust, so check the workshop data for your engine.
- Inspect the wiring from the connector to the sensor and the connector itself, especially near the exhaust. Look for burnt or chafed insulation, a melted or corroded plug, and wires that have been repaired before.
- With the ignition off, unplug the sensor and check its resistance against the specification, and check the harness for an open circuit or a short. A signal stuck near the top of its range that does not change as the exhaust warms up points to an open circuit or a dead sensor.
- Repair the wiring or replace the sensor with the correct type for that position. A sensor that has seized in the exhaust can add time to the job.
- Clear the code and check the filter's soot load with manufacturer-level software, because the filter may have loaded up while regeneration was not being controlled properly. Run a forced regeneration if the software allows it.
- Road-test and confirm the temperature readings now follow the exhaust as it warms up and that the code does not return.
How much does P2033 cost to fix on a Ford? (EUR)
Estimated repair costs for P2033 in EUR, compiled across makes. Expect Ford parts and labour towards the upper end of each range.
| Repair | Parts Cost | Labor Cost | Total Estimate | DIY Difficulty |
|---|---|---|---|---|
| Repair sensor wiring or connector | €5–€40 | €60–€180 | €65–€220 | Moderate |
| Replace exhaust gas temperature sensor | €25–€100 | €40–€120 | €65–€220 | Moderate |
| Reset the filter's learned values after the repair (manufacturer-level software) | €0–€0 | €40–€120 | €40–€120 | Professional |
| Forced DPF regeneration, if soot built up while the sensor was out (diagnostic tool) | €0–€0 | €60–€150 | €60–€150 | Professional |
Prices estimated as of October 2026. Costs vary by region, vehicle, and shop.
Codes related to P2033
These codes are often seen alongside P2033 or point to related issues, on any make:
Looking for the full P2033 reference (all makes, full diagnosis flow, complete repair cost matrix)? See the main P2033 guide