So I Bought the A4/ B7 a few months back as a commuter as i drive 135 miles a day for work. I had a few issues, things is that were common PCV valve and vacuum leaks,
So the things Ive done recently,
Plugs/ Coil pack, PCV & hoses, Throttle body. I did this due the throttle body having a little oil residue and a missing gasket. it threw these codes as well probably a month into driving it. This fixed the issues. Until now.
Winter shows its face and the water and slush have seem to get into the intercooler. about a full quarts worth. Yeah the hose clamps were loose. So this beautiful mix made its way up to the throttle body and PCV. I flush the entire system of the intercooler. hoses and tube channel. Replaced the PCV and cleaned the throttle body. The residue mix stopped at the PCV. upon further inspection.
The car is running pretty damn rough now. after cleaning everything out and reconnecting. Threw a few codes:
P0458 EVAP SYSTEM PURGE CONTROL VAVEL CIRCUIT LOW
P0245 SOLINOID VALVE (a) FOR BOOST PRES. CONTROL N75
P0301 cy1 misfire
p0303 cyl 3
p0300 multiple cyl misfire.
I've switched coil packs around to rule those out.
My only conclusion now is that the throttle body is ruined due to the water/oil that was sucked in from the intercooler.
& Boost Solenoid Control Valve possibly as well. As a note the TB I purchased first was like 80.00 from Rockauto.
Thoughts?
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