DTC P1236: Negative deviation of the boost control

(in practice – turbine contaminated with soot.) Defect Vacuum control of the turbocharger boost regulation Pierburg can not move the turbine VTG blades), (effects: power drop, problems with high revolutions) Permanent generation P1236 – changed Pierburg valve plugs.

• Faulty fuel pump module assembly
• Open or short circuit of the fuel pump
• poor electrical connection
• Damaged drive unit control module (ECM)