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Originally Posted by gthompson97
Okay, you've probably told us 100 times, but I'm going to ask again. What parts have been replaced and which ones have been tested so you know they're good. When did this problem start, was it when you first put on the new TB? I've read a few times that incorrectly bored TB's can cause some really fucked up idle problems, so that may be a problem.
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-I've replaced the TPS with a brand new one. I'm going to test it when I get the TB off the car soon.
-The IAC was replaced a long time ago, but with a used one. I want to get a new one, and I think I may this weekend. May as well.
-The problem has been bad for a while. It started happening when I first got aw P0420 code (EGR flow). Travis is sending me a low mileage EGR valve and solenoid and I'm going to replace it.
-The bored TB looks fine. It's going straight through and the butterfly plate is excellent. No leaks or anything.
-Gasket brand new. Everything is hooked up great, no leaks.
-PCV valve and hoses are new.
-Air filter is clean.
-Fuel filter was changed last year.
I have some time on Sunday, so I think I'm going to take care of it then. Going to take off the TB, sensors, get a new IAC, clean everything, and test everything. Then reseal all the gaskets and see if that changes anything. If not, once I get the EGR in, I'll install that and see if that fixes anything. If not then, then it's going to my shop for diagnostic check. Sound good?