One problem related to gas recirculation valve (egr valve) has been reported for the 2007 Toyota Corolla. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Toyota Corolla based on all problems reported for the 2007 Corolla.
I owned a Toyota Corolla 2007 and the engine stalled once. It happened when I was getting off a highway and the vehicle took a 180 degree turn on the ramp. Thank god that there was no car behind me. I thought it did something wrong to cause the engine to stall. This week I read the news that Toyota admitted that there may be a engine defect. I hope that Toyota is taking step to correct the problem.