Leaderboard

actually the 2zz motor has a little more issues, due to it's high performance nature. as such, 2zz owners tend to "enjoy" LIFT (powerband from 6200 - to redline) a bit too much. The LIFT bolts do need to be properly cared for as well. Other than the power advantage, 1zz motors do have better fuel mileage and a slight torque advantage over the 2zzs - of course until LIFT kicks in. In your case, it may just a bad motor which is not a common issue. Did you get your car used or new? If used, the prior owner may not have cared for it properly.