There was never a problem before the timing belt broke, so I'm thinking the vacuum hose thing is a wild goose chase. Something must have happened in the timing belt repair. I don't want to start replacing a lot of parts that had nothing to do with the original timing belt problem.
This has _got_ to be covered in FAQ somewhere... I see many similar problems but no explanations/fixes other than Dealer Magic.
Give us the code you got, we'll help you out.
On Sun, 8 Jul 2007 13:37:12 -0400, qslim wrote (in article ):
The code is P0401 which they tell me indicates a problem in the vacuum system. They are blowing out hoses and talking about replacing a series of switches and valves. I suppose it could be a coincidence, but since the light came on immediately after a timing belt break and replacement, it's hard for me to believe that the problem is not related to that.
That is an EGR Code. See
Ed White
That problem related to the EGR system, which is controlled both via vacuum and electronic valve actuation. This can be a tough code to diagnose because there are multiple pieces in this system that can cause insufficient gas flow. There is a very prescribed way to test it and actually determine what the root cause is without just throwing parts at it, and it makes it all the more difficult to do without Toyotas scan tool (in other words, at a place other than the dealer). Whether or not it was caused during tbelt replacement is impossible to say. The EGR system is not in any way related to the timing belt job, but whos to say what happened, you know? Hell, I was driving a customers car for a wheel vibration complaint one time several years ago, and the engine decided to blow a connecting rod out through the block while I was in it. It sure wasn't related to balancing wheels, but try telling that to the customer who now has a 3000 lb paperweight instead of a car.
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