Stage 1 remapping in Portsmouth
Just 3% of the 77,505 privately kept cars in the Portsmouth council area are plug-ins, one of the lowest shares among the 104 largest towns we cover. Vans, on the other hand, are unusually common: 7,030 privately kept, or 91 for every 1,000 private cars, the joint 5th highest ratio in the same group. Figures are for the end of June 2026. Petrol and diesel still dominate here, with a large private van fleet alongside them. A Stage 1 remap suits both in different ways: on a car it brings smoother, stronger pull in the middle of the rev range, and on a van it is the extra torque you feel when loaded or towing, set with the clutch and gearbox in mind.
Vehicles and driving in Portsmouth
- Privately kept cars in Portsmouth
- 77,505: 29% diesel, 61% petrol (council area, June 2026)
- Privately kept vans in Portsmouth
- 7,030, 95% of them diesel
- Drive to work (2021)
- 42.6% of working residents drive a car or van to work (England and Wales: 45.1%)
- Long commutes (2021)
- 3.6% travel 30 km or more to work (England and Wales: 4.4%)
- Households with two or more cars or vans (2021)
- 27.8% (England and Wales: 35.4%)
- Postcode districts
- PO2, PO3, PO6, PO1, PO4, PO5
- Main roads
- M275, M27, A3(M), A27, A2030, A2047, A3, A288
- Population
- About 223,300 (Portsmouth)
Driving in and around Portsmouth
Farlington Services on the A27 is 2.8 km away, and the M275, M27 and A3(M) are also among Portsmouth's main roads. Gosport is 5.9 km from the city, Waterlooville 6.9 km and Havant 7.3 km. In the 2021 Census, 42.6% of working residents in the Portsmouth built-up area drove to work and only 12.2% travelled 10 km or more, against 19% across England and Wales, while 29.1% of households had no car. In the council area, diesel makes up 28.9% of private cars and 94.8% of private vans. In 2025 MOT tests across PO postcodes, the Ford Transit and Volkswagen Transporter were the most tested diesel vans, and the Volkswagen Golf the most tested diesel car. On a diesel, extra mid-range torque helps most on the M27 and A27.
Who does the remap in Portsmouth
An independent mobile technician from our national network does the remap at your home or workplace, booked and managed by us. Call with your reg and postcode and we'll tell you straight whether we can cover Portsmouth.
Diagnostics before and after, a remap file matched to your vehicle, repair only: no DPF, EGR or AdBlue deletes.
Common diesels in PO postcodes
AdBlue warning on? Repair comes before any remap: AdBlue repair in Portsmouth
Frequently Asked Questions
We check on the phone who can get to you in Portsmouth before anything is booked.
We give you the price on the phone once we know your vehicle.
Stage 1 remapping near Portsmouth
Distances below are in a straight line.
Sources: DfT VEH0105 (privately kept vehicles), Census 2021 (ONS) for Portsmouth built-up area (taken in lockdown), DVSA MOT results 2025 (diesels, by test station postcode area), OpenStreetMap (ODbL) and postcodes.io. Public sector information under the Open Government Licence v3.0. Updated 29 October 2026.