99 wagon DOHC

I had this code and tried a new coil, new plugs, and wires. Then I noticed the vacuum line that runs from the TB to the passenger side of engine(connects to some kind of switch), then back to the EGR was cracked right at the TB. So if you are getting the shudders and crazy acting engine check this hard vacuum line.

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Thank you dingodingodango. You'd think they would come up with a rubber compound that wouldn't deteriorate for vacuum lines, but you've got to hand it to the manufacturers. It's a great way to get people back to the dealership for that minimum of 1 hour labor.