the filter is fine, there is no hole, it's just squished in one spot but the integrity of the gause is 100% I changed back to the stock airbox to see what would happen (and also for Mr Service Manager at Toyota so they cannot say, it's your CAI causing those signals... and leave it at that) but the engine light is still on and it's still idling rough and still gasping with anything more then light acceleration. I have to try cleaning the MAF sensor now, and while I'm at it I'll clean the intake pipe and the filter too, so they'll go back on good as new :) anyone have any tips on cleaning the MAF sensor... solvents and solutions to use etc... I tryed searching but just found a thread about Craig breaking his while cleaning it... I hope this will fix it as it is all that is left to check...