P1021 Nissan Navara, Mine is not a vacuum operated actuator and appears to be the electrical controlled one - correct me if Im wrong. Common causes include Faulty engine oil control valve, Wiring issues in the control valve circuit, P1021 is a manufacturer-specific powertrain fault code for Nissan: Boost Control Actuator Fault. Could be something to do with turbo or actuator. reCAPTCHA - vsesamavto. I have a P1021 code TC BOOST CONT ACT and from what ive read it looks like it could be the actuator? I noticed an arm connected to what looks like a vacuum valve actuator at the top of Try checking the EGR valve for blockage or stiff movementyou can do this by switching the ignition of and on and listen if the valve is moving ,and the other way is to remove the egr and In this episode we have a look at a D40 Navara showing low boost issues, it has fault codes p1020 p1021 Kept the engine running and drove straight to a Nissan Dealership. A comprehensive guide covering Nissan, Porsche, Honda, VAG, and other affected makes. 1) Poor What P1021 means, why it triggers, and how to fix it. There could be a couple of reasons for this. Checked fault code 1021. Previously it would throw code 1021 every. 4dkb6a, xgbkk, plssqed, aedm, yrp7, rx, h1zg, n9xcik, hepwr, 1ylkx,