Originally Posted by eko1
I had a box tune put on my car in January. Eurocharged had all the info regarding mods done to my car. Everything seemed to be running well. Approximately 3 weeks later I had a check engine light appear that showed that both primary cats were below operating threshold. I had never seen any catalytic codes prior and codes from both banks appeared at the same time.
I thought maybe the cats were clogged so I had an exhaust shop cut them out to inspect. They were both melted through as if someone had taken a torch to them. This was especially unfortunate because my state requires emissions. I have shorty headers beacause I wanted to keep my OEM cats. Condition of cats:
At this point, I suspected the car may be running rich, so I took it to a shop to put it on a dyno to check afr. As demonstrated in the charts below, the car was running very rich. The lowest sniffer reading is 10 and it was flatlining there indicating it was well below 10. Logging showed the ecu started pulling up to 12 degrees of timing starting at 3000 rpm and adding fuel. First and third runs on eurocharged tune with cat delete:
After these runs, another e55 was put on the dyno for tuning after longtubes. The car ran exceptionally well after the mods and reflash. I decided to have this shop tune my car on the spot rather than going back and forth with EC for further tuning and verification time on the dyno. I had already spent enough time, energy, and money on the situation.
My car was tuned and within 3 runs it was running much better. New tune (third run) vs Eurocharged tune.
The car is and was running properly. It was not heat soaked on any runs, and ait were normal and consistent. All runs were done in 3rd gear. Mods are 168mm, shorty headers, larger heat exchanger, and johnson pump.
I have contacted Eurocharged to give them an opportunity to refund me but they do not think it is tune related. They contend that they are not aware of this happening to other cars, setting up fueling is very easy, and it may also be an existing problem with my car.
Whether my experience is unique or not, this is what occured. It is my opinion that the tune was not set up right for my car. Overall, I am not satisfied with their product and service.
You got a box tune... See bold.
I have been running an EC tune for over a year with stock cats and I have passed inspection twice.
Why are you the only one out of thousands of tunes?
It's ridiculous that you compare box tune with shortys to long tubes with a dyno tune. It's also ridiculous that you would pay for a retune instead of taking a free retune from EC IMO.
Ive burned out primaries on multiple other cars that were stock FYI. I also have contemporaries that have blowtorched out cats to maintain visual inspection.
Are you the first owner? How many miles on the car?