Step 1- Connect the instrument to the high-voltage circuit of the vehicle.
The engine is running normally, showing the actual fuel pressure value.

Step 2- Locate the high-pressure line from the pump to the fuel distributor. If inaccessible, look for a line from the fuel distributor to the fuel injection valve.
- In the absence of a pressurized fuel system, cut off accessible high-pressure lines and connect gauges using M12 or M14 hoses.
- Ensure that all hose connections are secured before proceeding to the next step.

Step 3
- Connect the diesel bin (5) with the hose at the bottom of the meter. When the overpressure valve is activated, the bottle collects excess fuel, and if the vehicle does not start, it should still display a value of 300 bar.
- While the engine is running, carefully check for fuel leaks before proceeding to the next step. If there is a leak, turn off the engine and leave the system pressure free, then check that the valve is properly sealed, start the engine and check again for leaks.

Step 4
- Increase engine speed to ensure fuel pressure increases accordingly.
- Special check whether the engine reaches 300 bar when idling or starting. If this pressure is correct, the low pressure circuit will work properly and the high pressure pump will provide the minimum pressure needed to properly start the engine.
- If the pressure is correct but the engine does not start, the problem is not in the high pressure pump, but may be an electrical fault, fuel injector, etc.

Step 5
- If the pressure does not reach the required pressure, check the pressure at the high pressure pump inlet with a low pressure tester.
- If the pressure at the high pressure pump inlet is correct, check the maximum pressure of the pump.

When the pressure is too low, the high pressure pump shuts off the third piston. They use only two pistons and have lower engine power requirements. When 600-700 bar is reached, the third piston is activated by a magnet.

Step 1- Connect the meter to the high-voltage circuit of the vehicle. This means that the engine cannot be started and the test is only carried out when the engine is running. The pressure should rise above 1050 bar, which indicates that the pump is working properly.

Step 2- Locate high pressure line from pump to fuel distributor. If inaccessible, look for a line from the fuel distributor to the fuel injection valve.
In a non-pressure fuel system, cut the accessible high-pressure line and connect the meter to the M12 or M14 hose. Insert blind plug at meter outlet. Make sure the hose is connected in place before continuing.

Step 3- Connect the diesel waste fixtures (5) with the hose at the bottom of the meter. When the overpressure valve is activated, the bottle collects excess fuel.

Step 4- Start the engine. The pressure quickly rose to over 1050bar. This means the pump is working properly. If the pressure value is low, it indicates that the pump or pressure regulator is faulty. Run pump pressure control tests to identify problems.

Note: A problem with the pressure sensor (located on the fuel distribution line) may send incorrect information to the PCmut, which will pass incorrect information to the pressure controller, causing the controller to open prematurely. This results in low pressure. Use the EOBD tool with real-time data and compare the actual pressure of the gauge with the measurement results of the EOBD tool.

Fuel injector tubes are designed for use with gauges and hoses.

When the pump pressure is less than 300bar, this test should be carried out; Vehicle will not start.By closing the injector tube, it is possible to determine whether the pressure loss is due to an injector failure (opening the injector).

Step 1- In the absence of pressure fuel, disconnect the high-pressure line from the injector and install the injector tube tube (4).

Step 2- Follow the steps above to measure the starting/running pressure of the engine.

Step 3- If the pressure increases, it means that at least one injector is leaking.
- To determine which injector is leaking, connect the injector pipe separately and repeat the test.
- If the pressure is still low, the pump or pressure regulator may be faulty.

Shipping & Handling Details

Default  Shipping Cost or Free Shipping Information: 

▲ Default  shipping cost or free shipping service is only for the customers  from Canada or the lower 48 United States by Canada Post, USPS or  the UPS Ground. Customers from other areas or needs other shipping  ways, please contact us.
▲ Buyers  from Guam, Puerto Rico, Virgin Islands, American Samoa, Alaska,  Hawaii, PO Boxes, APO/FPO addresses or other countries/areas, there  WILL be extra shipping costs, please contact us for more detailed  information.
▲ Please  make sure your address is valid for both UPS and USPS services. Any  costs incurred because of incorrect or undeliverable address should  be undertaken by buyer.

Handling Time: Shipping  is usually made in 1-3 business days after payments cleared. Orders  are processed from Monday-Friday; Not on the weekends & public  holidays.

Sales tax / Customs  duties: Any  sales taxes or Customs duties are not included. If came out, they  must be undertaken by the buyer.

Damage In Shipping: Email  or call us First! We will work with you to get the case resolved in  the fastest method.

Return /  Refund

If you are not 100% happy with your purchase, please  contact Us. Please don't directly opened a request or case without  informing us, or else, we will do some discounts on the warranty and  other sales-services later on. Hope for your understanding.

Returns & Exchanges

▲ All  returns must be made within 14 days of delivery date. Items must be  in new, unused condition, with all original materials included with  the shipment. A partial refund may be applied for opened or damaged  items, depending on the condition.
▲ Items  returned under the buyer’s remorse: The return shipping fee must be  covered by the buyer; The original shipping cost will also be  deducted from the refund. 15% restocking fee of the items purchase  price will be charged. 
▲ Returns  that are the result of our seller's error: Buyer will receive a full  refund of the item as well as shipping charges
▲ All  returns require a RA (Return Authorization) number that will be  given by our seller. Please contact with us at first for more  details.

Defective & Damaged Products 

▲ If  product was received damaged or not as described, please send us  some pictures or videos, so we could well understand your problem,  then solve them for you ASAP. Besides, it's much helpful for us to  claim with UPS, remind our related department to pay much more  attention to packaging later on. Hope for your understanding.
▲ Replacement  or refund of defective or damaged products can only be returned in  exchange for the exact same product, or else, the purchase price  will be refunded back to your original payment method. 
▲ If  an item is received damaged, customer service must be contacted  within 7 days of receiving your item. All returns require a RA  (Return Authorization) number as above.

Payment

Warranty & Feedback

▲ 6  months' warranty for the machines, not for the consumables. We stand  behind our products all the item, so even if your warranty period  has expired, you can still seek for service or technical support  from us with low cost.
▲ Any  warranty shipping cost to us is responsible by buyer.
▲ Any  shipping cost to buyer is responsible by the seller. 
▲ We  committee to the customer satisfaction and want to bring you the  best purchase experience. If there is any problems, please contact  us ASAP. If not, please leave us a positive feedback as it's very  important for us. Thanks very much.