GEL Automotive specialist diagnostic testing in suffolk, we are fully equipt to diagnose car, van and HGV engine management lights. If you are looking for an automotive diagnostic specialist in suffolk we are more than capable of diagnosing engine management faults, failed ECU’s and other control units, as well as coding and programming of control units. We are based in Aldeburgh, Suffolk but have a service area that extends to colchester, norwich and bury st edmunds giving us coverage of Suffolk, essex and Norfolk.