2022年8月19日 · What are the common symptoms of OBDII code P1040 in a Volkswagen related to Injector 1 Supply Voltage Circuit Malfunction? - Common symptoms include rough idling, engine misfires, loss of power, and poor fuel efficiency.

2024年4月6日 · 故障代码 P1040（大众汽车）是车辆制造商用来指示发动机或控制系统的特定问题的特定诊断代码。 在这种情况下，代码 P1040（大众汽车）与 1 号喷油器的电源电路相关。

2022年8月19日 · Repair Information for P1040 Volkswagen code. Learn what Injector 1 Supply Voltage Circuit Malfunction means, location and how to repair?

2020年11月14日 · Currently have an Audi Q7 TDI 3.0 V6 in the garage and it won't start. At cranking there is 400 bar of fuel pressure. There are two faults - P1040 - Injection Valves (Group 1) - Circuit Defective P1042 - Injection Valves (Group 2) - Circuit Defective

2025年1月15日 · The P1040 code specifically refers to issues within the injector circuit related to supply voltage. Fuel injectors require a certain voltage to operate effectively; if this voltage is too low or too high, it can lead to improper fuel delivery.

2021年7月24日 · Diagnosing and repairing code P1040 involves inspecting the reductant pump control circuit for any shorts, checking the wiring for damage, and testing the reductant pump control module for proper functionality.

2024年5月28日 · 故障代码P1040的可能成因是喷油器1电源电压-电路出现问题，喷油器的作用在于将燃油转化为雾状以满足燃烧需求。 当电磁线圈通电时，会生成吸力，带动针阀抬起，喷孔开启，燃油高速喷出，形成雾化。

DTC P1040, sometimes indicated as P104000, is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (Manufacturer Controlled Fuel and Air Metering and Auxiliary Emission Controls). P1040: Exhaust gas pressure after BPV - Data valid but too low [Paccar]

2020年6月23日 · How is P1040 code repaired? Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Enter the 5 character trouble codes in the search box and submit the search. 3. Don’t assume a particular OBD-II code means the same for other auto manufacturers as there are many makes specific codes in use. 4.