VW Mk4 Jetta, Golf, New Beetle, Passat TDI forum
I've been running into this exact issue. My first start of the car it always overboosts to 30 PSI!!!!! Eventually goes into limp mode, then i cycle the ignition and the car runs PERFECT! It regulates the boost to around 18-20 PSI and the car accelerates better than ever, never overboosts and...