Hello, I have an Audi A3 2005 2.0 diesel, the engine code BKD.
I brought it as spares or repairs with a siren turbo. I replaced the core and actuator and the noise has gone now but I don’t seem to have any power, the car won’t Rev over 2rpm. I’ve plugged it in with a cheap diagnostic and it came up with the code p0401 exhaust gas flow insufficient detected (don’t quote me word for word). I’ve cleaned egr, it didn’t fix so then I changed the egr also didn’t fix. I’ve checked all boost pipes and they are fine, no splits anywhere. Taken the turbo back apart and checked all the veins, they are all free. Open ring and closing with the lever. Cleaned the inlet manifold it hasn’t fixed it at all or made even a slight change. There does seem to be air in the vacuum from the egr, Does anybody have any ideas what else it could be or what else to change?
I brought it as spares or repairs with a siren turbo. I replaced the core and actuator and the noise has gone now but I don’t seem to have any power, the car won’t Rev over 2rpm. I’ve plugged it in with a cheap diagnostic and it came up with the code p0401 exhaust gas flow insufficient detected (don’t quote me word for word). I’ve cleaned egr, it didn’t fix so then I changed the egr also didn’t fix. I’ve checked all boost pipes and they are fine, no splits anywhere. Taken the turbo back apart and checked all the veins, they are all free. Open ring and closing with the lever. Cleaned the inlet manifold it hasn’t fixed it at all or made even a slight change. There does seem to be air in the vacuum from the egr, Does anybody have any ideas what else it could be or what else to change?
