A garage, not just a laptop
Servicing, repairs and diagnostics every day. The mapping is one more thing we do, not the only thing.

About us
No call centre, no franchise, no file bought in from somewhere else. The person who writes your map is the person you speak to.
On the rampOur story
P&J Tuning began as one person working on friends' cars at weekends. Word spread, the unit got bigger and the tools got better, but the way we work has not changed. Every car gets looked at before it gets touched, and every file is written for that vehicle.
Today we look after everything from daily runabouts and high mileage diesels to modified cars and small van fleets, for customers across Maldon, Latchingdon, Chelmsford. A lot of them are on their second or third vehicle with us, which is the only figure we really care about.
Diagnostics benchKit and method
Good tools do not make a good tuner, but bad tools stop one. Here is what sits on the bench and what it means for the car you drop off.
How we work
Servicing, repairs and diagnostics every day. The mapping is one more thing we do, not the only thing.
Thirty five years of commercial work, and a brake testing facility on site.
Your factory file is saved before anything is written, so it can go back to standard.
What we charge is on the site. No ringing round for a number.
If a map is not what the vehicle needs, we will say so.

Cars to HGV
Most places that map cars will not touch a truck, and most truck places do not map. We do both, from the same unit, with a brake testing facility on site. For an operator that means one phone call instead of three.

We are at Mayfair Industrial Estate, Maldon Road, CM3 6LF. Call ahead if you can so we know to expect you.