coil pack probaly, utec probaly. we sent two units back to turboxs and they told us its not fixable that we would have to buy two new units. this is the reason why we dont sell the utec units anymore.

 

man, lots of poeple favors utec as good piggyback system, but now ic what you mean. i already went thru one bad utec and this is replacement they sent "new" out of the box, just had it tuned on monday by one of the best tunner on this forum "sharif" and i have this bs issue. hope the 3rd utec might be a lucky one.

 

update- from monday my car got worst, it ran on 5 cylinder all the time. i kind of thought it was going to be a coil pack issue, cause i disconnected the utec as it was happening, but didn't get better. today after work i wanted to truobleshoot the coil packs before using the new ones. so i disconnected back left harness off the coil pack and started my car, but didn't seem to have any affect on the issue. i reconnected the harness back and car sounded like it was runing in 6 cylinder. now it's running normal and feels strong as day i got it tuned. it was lose connection from one of the coil pack harness. installer forgot to snap it on well. hope this fixed the issue. i will keep you guys updated. thank you guys for your time and knowledge.