P0183 on Saab: Causes, Symptoms and Fix Cost

Quick Answer

Safe to drive (short-term)

P0183 on a Saab means the signal from the fuel temperature sensor is higher than the control unit expects, which usually means an open circuit, a short to voltage or a failed sensor. The control unit uses fuel temperature to estimate fuel density and correct the amount injected. On many diesels the sensor sits in or near the fuel filter housing; on others it is on the fuel pump or rail.

Severity: Low · Fuel System
Typical repair cost, all makes: €45-€210

Connect a standard OBD2 adapter (Bluetooth LE on iPhone) to your Saab and Skanyx tells you what P0183 means on that engine, whether it is safe to keep driving, and what the fix should cost. Free on iPhone and Android.

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What does P0183 mean on a Saab?

The Quick Answer above is the generic definition. What follows is the model-specific detail for the Saab models that log P0183.

Saab 9-5 2.0 TiD / TTiD (GM A20DTH / A20DTR diesel)

2010-2012

On the second-generation 9-5 diesel, Saab's service data places the fuel temperature sensor inside the fuel filter assembly. P0183 sets when the sensor signal stays above 4.9 V for half a second, which is what an unplugged sensor or a broken signal wire produces, and the procedure replaces the sensor only after the ground and signal circuits test normal.

What causes P0183 on a Saab?

Beyond the generic causes listed on the main P0183 page, these are the patterns noted for Saab models:

Fuel filter assembly with built-in temperature sensor
: Saab 9-5 2.0 TiD / TTiD (GM A20DTH / A20DTR diesel)
Open or shorted sensor signal circuit
: Saab 9-5 2.0 TiD / TTiD (GM A20DTH / A20DTR diesel)

How to diagnose P0183 on a Saab with OBD2

Follow these steps to pinpoint the root cause of P0183:

Read the stored code and freeze frame with an OBD2 reader, and note whether other fuel codes (P0191, P0193) are stored too
If your car reports fuel temperature to your reader (many do not on generic OBD2), check the value. A sensor that is unplugged or has a broken signal wire usually reads as the coldest possible value, such as minus 40 degrees
Find the sensor for your engine (in the fuel filter housing, on the pump or on the rail, depending on the car) and inspect the connector for corrosion, bent pins or moisture
With the sensor unplugged, a workshop checks the reference and signal circuits with a multimeter against the wiring diagram for a short to voltage or an open circuit
If the wiring tests normal, replace the sensor, or the filter or pump module if the sensor is built into it
Clear the code and road-test to confirm it does not return

How much does P0183 cost to fix on a Saab? (EUR)

Estimated repair costs for P0183 in EUR, compiled across makes. Expect Saab parts and labour towards the upper end of each range.

Repair	Parts Cost	Labor Cost	Total Estimate	DIY Difficulty
Repair or clean sensor connector and wiring	€5–€30	€40–€120	€45–€150	Moderate
Replace fuel temperature sensor	€15–€90	€30–€120	€45–€210	Moderate
Replace fuel filter with built-in sensor (diesel)	€25–€80	€35–€80	€60–€160	Moderate

Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.

These codes are often seen alongside P0183 or point to related issues, on any make:

Looking for the full P0183 reference (all makes, full diagnosis flow, complete repair cost matrix)? See the main P0183 guide

Diagnose P0183 on your Saab

Your car logged P0183. Skanyx reads it on a standard OBD2 adapter (Bluetooth LE on iPhone), tells you whether it is safe to keep driving, and shows the €45-€210 repair range so you know the number before a shop quotes you. Free on iPhone and Android, and you do not need to be a mechanic to read it.