Qcwo Reviews 

Personal communication regarding status of repair throughout the whole process. Quick turnaround. Unit is installed now and working perfectly! Would highly recommend to anyone needing this service.

I’ve been waiting a few weeks to write this review. I wanted to be sure that my ECU repair was done correctly before leaving an honest review. Richard surpassed all of my expectations, I will now send all of my ECU repair needs to nobody else but TechnicalDomain. The pricing is extremely affordable and the one day turnaround time was what sold me. It’s been about 500 miles since Richard repaired my 06 LS430 ECU and the car is driving flawlessly. Communication was a breeze and Richard kept me in the loop the entire process. Don’t hesitate to send Richard all of your ECU repair needs!!

Excellent communication, good turn around time, fixed my issue when installed. What more can a man ask for?

I am very pleased with the fast and knowledgeable service I received from Richard and his team. My 2006 GS300 abruptly began experiencing harsh downshifting in low gear and after some digging into the issue online I found Richards’s ECM service. My part was repaired and returned to me even faster than I expected and I was able to plug it in and get right back on the road.

I am in Wales, in the UK. I have had a garage business for over 45 years. As you can imagine I have dealt with a vast amount of new and repaired parts. When my wife's 2004 Rav 4 had gear box problems, harsh shifting and clunking in reverse I would have thought it was uneconomical to be repaired. But my wife has had the car from brand new and loves it. And also, Tommy the dog loves it. There was no one in the UK who could help us. Then we found out about Richard Rodriguez, Rav4Repair.com,
TechnicalDomain.net. His service has been very impressive. Quick and efficient. Communicating at every step. And most importantly my wife is back driving the RAV perfectly with a massive smile. We are very grateful to Richard for all the help he has given us.

Richard was a pleasure to do business with! Great service and great person to do business with!

Richard was in constant email contact with me from the minute I had my first correspondence with the company. They followed me through a step by step process of what would happen with my ECM that needed programming, every step was conveyed to me through either email and text messages through the repair process and they followed through with everything that they said, my ECM was back within a week from them, I was amazed with the service this company offers. They did what they said and followed through with every step. AMAZING!! Thanks and hats off to you and your company!

I was getting the P2757 even though my car shifted flawlessly, the check engine light was on. I switched out a solenoid for several hundred dollars, with no luck.

I sent to Richard on a Friday and received my ECU back on the following Monday - so really just 1 week and it's back and it's perfect - no more check engine and I've gone several hundred miles.

Extremely fast turnaround and the ECM was fully fixed. I would use this service again without question, Great work!!!

The work was done properly and timely. The mechanic was very helpful, explained the process of shipping.

Communication and the fix worked.

My transmission problems are completely gone!
If I type up a full review it would take time and space that all the other reviews have covered. I read every review and I can say every word as of 3/26/25 is true!
The communications, descriptions, and tech. advice given are accurate. It's so nice when you are on the receiving end of products and service that are As Described on a companies website! 8 day turnaround from southern Arizona and worked as soon as I re-installed the ECM. Yes, I did have to drive it for 20-30 minutes to get the idle normalized and the dashboard lights to go out. But it happened just as Richard described they would.
Thank you for this service Richard!

Fast turnaround,good communication,very professional.

My 2002 Rav4 with 190K miles started harsh shifting from 2nd to 3rd. Highly recommend sending your ECM/ECU to Richard Rodriguez. Richard communicated via text and call almost immediately and throughout the process. He also cares for his customers that he kept in contact with me with the repair process.  Great customer service. Very professional.  Would not hesitate to work with him again. Thank you, Richard.

Excellent website that describes the issues with the ECM and the repair process . I am in California and sent the ECM by USPS on Feb 27, Mar 4 I got a email saying It was repaired and on its way back, I received it on the 8th - that's a total of 10 days gone including the repair! fantastic. Best part is I reinstalled it and the transmission shifted perfectly immediately, as expected the engine ran roughly at first while it was relearning but eventually smoothed out. The next day I took it on a 300 mile round trip and everything worked as it should, very happy with the work and wouldn't hesitate to use them again.

The service is wonderful no problems very quick return some might think kind of sketchy to send something to Puerto Rico but this company is very honest and like I said the turnaround was like one day they got it and they fixed it and send it back awesome service

Great experience. Fast communication, clear answers. I got over my apprehensions and shipped it from Chile. Richard was super supportive and when it got back, he explained there would be a 20 minute learning curve and then everything clicked and worked.

My baby car rav4 2003 having a serious shifting issues, as well as stopping and speeding up. Went to local mechanics, they all told me that I have to fix my transmission, where I was quoted 4k$ to 7k$ to fix it. I was feeling so depressed until I came across Rick’s article about RAV4 2000-2005 common issues. Which I having almost all the symptoms, then I reached out to Rick that is in the states, he’s so responsive, professional and helpful, I sent my ecm to him and received two weeks later (slow international delivery), and follow his instructions on how to reinstall and everything, and at the end of the day EVERYTHING IS FIXED! He literally saved me 3.2k$, Rick is the best! Not a scam, I swear to god, I’m from Australia and I’m really thankful for everything he done to me, he deserve more business!!!! *Love Kylie

A local mechanic told me my 2005 Toyota RAV4 would need to have the transmission replaced and that would cost a couple thousand dollars. In my desperation I tried to find an alternative by myself. I found this site and noticed that a lot of the symptoms of a damaged ECU were the same as my car was having, so I sent the ECU for repair. It was fixed rather quickly and returned to me. I installed it and have since stopped having issues with my car and passed the state inspection. I'm so glad I found this repair service. Richard took the time to reply to my emails and was very detailed.