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Cold start - missing boost
So..
More and more often when I start driving the car from cold, I get no boost pressure. When I reach 60-70kph I get flashing glow plug light, limp mode (even less power than before) and fault code P0235. If I notice when I start driving that boost is missing, I can drive carefully on flat ground for 10 minutes without pressing the pedal too hard, no "limp mode" and no flashing light, just ALOT of missing power.. When the engine reaches normal temp, I can park it for 6-7 minutes to let it "shut down", then start and everything is fine. If I start from cold, even the times it drives normal, and then stop the car before it's completely warmed up, I will have no boost when I start it again. As long as the engine is warm, everything is fine. Always. Tried changing boost sensor and the plug, that didn't help. Turbo actuator maybe ? Outtakes from a few vcds scans I did some time ago, before I understood I had to let it "shut down" to start working again: Quote:
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06 A8 3,0TDIq My daily driver and project... 97 A4 1,8Tq. Powered by a 4,2 from the '01 S6, full rollcage, FIA seats and 6-point harnesses, B5 RS4 KW Competition race suspension, B6 S4 brakes, 18" Toyo RS1 slicks, carbon fiber roof. V8 trackday racer 14 VW Caddy 1,6TDI from my employer.. (X)00 A8 2,8q, (X)97 A4 1,8Tq, (X)92 S4 2,2Tq, (X)92 80 2,3E |
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