Alfa Romeo 156 1.9 JTD 126hp Remap

Name: Alfa Romeo 156 1.9 JTD 126hp ECU Remap
Brand: Alfa Romeo

Expected gains of +49 BHP and +50 Nm torque

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BHP+49 hp (39%)

Standard

126 hp

Tuned

175 hp

Torque+50 Nm (15%)

Standard

330 Nm

Tuned

380 Nm

Suitability

Good (7.5/10)

Gains Profile

Power-focused

Headroom

High

Alfa Romeo 156 1.9 JTD 126hp ECU Remapping

Considering an ECU remap for your Alfa Romeo 156 1.9 JTD 126hp? A Stage 1 remap can take this 2002 - 2005 diesel engine from 126 BHP to 175 BHP and from 330 Nm to 380 Nm of torque (turbocharged). This engine scores 7.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Alfa Romeo 156 can achieve.

How this engine compares

1stof 22 Alfa Romeo 156 engines by power gain
75%of the 9,842 engines we hold gain data for see a smaller power increase
27%of engines with torque data see a smaller torque increase

Comparisons are calculated from our own recorded Stage 1 figures.

Assessment

The Alfa Romeo 156 1.9 JTD 126hp is a 1.9L turbocharged diesel engine producing 126 BHP and 330 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 175 BHP and 380 Nm — a gain of around 49 BHP (39%) and 50 Nm (15%).

This engine scores highly for remap suitability, with gains weighted towards peak power — the improvement is most noticeable at higher RPM. The tuning headroom is classified as high, based on the percentage gain available from the factory output.

Considerations: Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.

Fuel economy note: possible improvement with conservative driving.

All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.

Considerations

!Older diesel: injector, turbo and intake condition can affect results; ensure maintenance is up to date.

Other 156 2002 - 2005 Engines

Engine	BHP	Gain

Technical Specifications

Fuel Type: Diesel
Aspiration: Turbocharged
Displacement: 1.9L
Capacity: 1910 CC
Type: Car
Engine Family: Alfa Romeo 1.9L JTDm Turbo Diesel

ECU & Transmission

Likely ECU Low confidence: Bosch EDC15 / early generation diesel ECU (varies)
Gearbox Low confidence: Transmission varies by trim and market; check manual/automatic type and torque rating.

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Confirm Your Vehicle

MakeAlfa Romeo

Model156

Generation2002 - 2005

Engine1.9 JTD 126hp

All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.

We recommend discussing your specific vehicle with a qualified remap professional before proceeding.

1.9 JTD 115hp	115 → 145	+30	275 → 330	+55	Good (7.5/10)
2.4 JTD 136hp	136 → 168	+32	310 → 380	+70	Good (7.5/10)
1.9 JTD 136hp	136 → 175	+39	305 → 380	+75	Good (7.5/10)
2.4 JTD 140hp	140 → 173	+33	304 → 382	+78	Good (7.5/10)
1.9 JTD 140hp	140 → 175	+35	305 → 380	+75	Good (7.5/10)
1.9 JTD 150hp	150 → 185	+35	305 → 380	+75	Good (7.5/10)
2.4 JTD 150hp	150 → 180	+30	304 → 370	+66	Good (7.5/10)
2.0 JTS 165hp	165 → 175	+10	206 → 220	+14	Moderate (4/10)
2.4 JTD 20V 175hp	175 → 220	+45	385 → 480	+95	Good (7.5/10)