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| Name | VAG 2.0 TDI turbo P0234 overboost cause. |
| Video Uploader | Video From ukwrx |
| Upload Date | This Video Uploaded At 30-10-2012 16:05:34 |
| Video Discription | I had a police siren noise between 1400-1800rpm after only 33K miles, under light acceleration/deceleration. When flooring it, it went into limp mode and was then fine after a restart. No check engine light was on, but an error code P0234 turbo overboost was logged. Local VAG specialist said turbo out of balance and rebuild/replacement required. I had previously tested the variable vane operation on the turbo using a hand vacuum pump and it seemed to be moving the full travel. After removal of the turbo for replacement I found that the lever would only move freely half of the travel as demonstrated in the video. The turbo variable vanes were clogged with diesel soot stopped the arm from moving them. Hope this helps someone as I ended up with new turbo when just a clean/rebuild was required. Make sure you disconnect the vacuum cylinder connection when testing as otherwise you wont feel it sticking. After the rebuild it moved the full travel easily. |
| Category | Autos & Vehicles |
| Tags | VAG | 2.0 | TDI | P0234 | SEAT | SKODA | AUDI | VW |
