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Customer reviews for this category

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Excellent service Excellent service 5/5

After trying various ECU repairers over many years, we have found ECU TESTING to be by far the best we've used. Have used them for a few years now and cannot fault their service or prices, and will continue to use them for for many years more..

Very professional Very professional 5/5

I have been using this company for a number of years for many different cars and very different issues. Each time they are reliable and each time kept me up to date with progress. With the cars these days you need a company you can trust with your electrical needs and this is the company

Ecu Ecu 5/5

Excellent service throughout, stall couldn't be more helpful, we were updated all the way through

Great Service Great Service 5/5

To be honest, I sent the ECU off with a bit of concern, since these were just guys I had seen on the internet. However, I did not need to worry. Not only did I get text updates to my phone as the ECU was moving through the various stages, it came back well packed. I reinstalled it and started the engine - no problems. These guys are the real deal, great service and value.

First class First class 5/5

Excellent, fast turnaround with this one & it all worked a treat. Customer was really pleased to get his car back working at the price.


ECU fault diagnosed by "Vauxhall Specialist". Quoted £800 for replacement ECU with only 1year guarantee. Decided to try ECU testing. absolutely superb service. texted and emailed from day it arrived with daily updates until shipping confirmation. Fitted back on car and running perfectly. Saved £550 with bonus of lifetime warranty. Customer service is better than 5 stars. Highly recommended.

ECU Reconditioning ECU Reconditioning 5/5

Excellent service. Was kept informed of what was happening every step of the way.

ECU testing/repair ECU testing/repair 5/5

This is a first class service,keeps you updated on progress,10/10 for customer service.My car is now running without any problems thanks to your technicians