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I own a Mercedes CLK. How do I reset the computer in the shortest time possible, alon with completing the emission monitors?

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Please take extra caution while performing drive cycles on public roadways. Drive cycles can be difficult to follow under normal driving conditions. Note: The drive cycle test needs to be done two 2 consecutive times.

Mercedes-Benz E320 Fuel Pressure Regulator Replacement at your home or office.

Prior to driving the vehicle read the drive cycle instructions carefully and completely to ensure successful test result. After this test step has been completed, turn ignition OFF, wait 10 seconds and repeat this test step again.

NOTE: It is recommended to perform this test while the engine is cool. Drive Cycle Test Procedure Explained 1. No smog check? No problem. Pay your DMV renewal fees now and avoid penalties! NeedTags - OL California authorized online vehicle registration service provider.

All Rights Reserved. Smog questions might be posted on our online forum to assist other vehicle owners.

03 e320 fuel tank pressure sensor

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How to Complete Mercedes Benz 320 CLK Drive Cycle

Related questions and answers you might find useful: yes our no?Fuel pressure regulators are an occasional source of frustration for the do-it-yourselfer. Sometimes, they don't show any obvious indication of failure, leaving you puzzled when your car stumbles on acceleration.

03 e320 fuel tank pressure sensor

Testing a regulator can be a bit difficult as sometimes the fault won't appear until the car has reached a certain temperature. The first step in diagnosis is to go over the basics. Is the fuel pump operating? Is the fuel filter clogged? Is there actually any fuel in the vehicle?

Believe it or not, many people overlook these steps. The next step in determining if the regulator is bad is to check the fuel pressure on the car. There are basically two ways to do this. You can use the test port on the fuel rail itself which requires you to rig up a Schrader valve type connection to a pressure gauge, or you can rig up a pressure gauge in-line down by the fuel filter. Either way you do it, make sure you have a gauge that is rated for fuel injection pressures at least 50psi and that all connections to the gauge are correct.

Turn the key on and off several times to energize the fuel pump. This will build up pressure in the fuel rail and begin to register on the gauge. The system operating pressure is psi.

If the operating pressure is below 35psi or fluctuates wildly, it's probably a good bet that the regulator is bad. If you pull off the vacuum connection and there is fuel dribbling from the nipple, the diaphragm inside has failed and the regulator must be replaced this was the case on our project car. Be prepared: Work in a well ventilated area. Keep a fire extinguisher near you at all times and know how to use it correctly.

No sparks or open flame around. We will be working around gasoline here. It's better to be prepared than have that one time where everything goes wrong. Begin by pulling the protective cover off the valve cover to the rear of the fuel pressure regulator green arrow. Large Image Extra-Large Image. Remove the vacuum hose purple arrow that attaches to the nipple on the fuel pressure regulator green arrow. Once the vacuum connection is removed, locate the circlip sometimes called a snap ring that holds the regulator in place.

Use a pair of circlip pliers to squeeze the two holes in the circlip together green arrows. This will compress the spring and allow you to remove it from the groove on the inside of the housing. It's also a good idea to clean any grime or dirt that has accumulated around the regulator to prevent it from falling inside the fuel rail.

Once the circlip is removed, pull up on the regulator to remove it from the fuel rail.Order was easy, came quickly. It was exactly what was said to be and a good price. Very impressed. Works great, after having purchased additional items, which, for me as a non-gearhead, were hidden in the small print.

I had to buy cable harness etc in addition and it was not clear to me from the start that i had to. So my installation was a little delayed, as i had to place a s econd order to get the additional parts. For instance it should have said: "If you are purchasing this fuel pump, you also need these parts Close X.

Electric Fuel Pump. Fuel Cap Tester Adapter. Fuel Door Actuator. Fuel Filler Door Lock Actuator. Fuel Filler Neck. Fuel Filter. Fuel Hose. Fuel Level Sending Unit. Fuel Pump Assembly. Fuel Pump Lock Ring. Fuel Pump Mounting Bracket. Fuel Pump O-Ring. Fuel Pump Seal. Fuel Pump Tank Seal. Fuel Pump Wiring Harness. Fuel Pump and Sender Assembly. Fuel Screen. Fuel Sender Gasket. Fuel Sending Unit.A fuel tank pressure sensor is a small device that resides in an automobile's fuel tank that measures the pressure within the tank.

It uses this information to alert the vehicle's internal computer when there is a leak in the fuel system. The fuel pressure sensor works in conjunction with a vehicle's evaporative control EVAP system, which captures any evaporated fuel before it leaves the fuel system. The sensor alerts the vehicle's computer to not only fuel tank leaks, but also to leaks in the EVAP system.

The fuel tank pressure sensor is always monitoring the pressure in the fuel tank for potential leaks. Pressure testing in the EVAP is performed periodically, typically after the vehicle has been sitting for a while e. Monitoring for leaks in the fuel tank and EVAP system can help vehicle owners recognize and repair leaks as soon as they begin occurring, saving fuel -- and gas money.

It also helps vehicle owners to stay in compliance with federal and state regulations regarding emissions from fuel systems. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

To submit your questions or ideas, or to simply learn more about It Still Works, contact us. Benefits Monitoring for leaks in the fuel tank and EVAP system can help vehicle owners recognize and repair leaks as soon as they begin occurring, saving fuel -- and gas money. About the Author This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

Photo Credits pumping gas image by Mat Hayward from Fotolia.Close X. Electric Fuel Pump. Fuel Cap Tester Adapter. Fuel Door Actuator.

Fuel Filler Door Lock Actuator. Fuel Filler Neck. Fuel Filter.

03 e320 fuel tank pressure sensor

Fuel Hose. Fuel Level Sending Unit. Fuel Pump. Fuel Pump Assembly. Fuel Pump Lock Ring. Fuel Pump Mounting Bracket. Fuel Pump O-Ring.

Fuel Pump Seal. Fuel Pump Tank Seal. Fuel Pump Wiring Harness. Fuel Pump and Sender Assembly.

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Fuel Screen. Fuel Sender Gasket. Fuel Sending Unit. Fuel Tank Cap. Fuel Tank Cap Seal. Fuel Tank Screen. Fuel Tank Screen Seal. Fuel Tank Sender Assembly. Fuel Tank Strap. Fuel Transfer Pump. Fuel Transfer Tank Pump. Air Intake. Body Electrical.If you find your car surging or stuttering you may have a faulty fuel pressure regulator. Changes in the fuel pressure can affect the power and performance of the engine and can be potentially dangerous.

Don't get caught at the side of the road with an empty tank even though your gauge says full. The fuel tank sender is used to measure the amount of fuel in the fuel tank and send an electrical impulse to the fuel gauge. If your fuel gauge is starting to give incorrect readings, it's possibly this sender. In modern cars the tolerances in fuel pressure in your system can be very tight. The fuel pump needs to be able to send a certain volume of fuel at a certain pressure constantly.

If you are having issues with the performance of your engine you may have a fuel pump going bad. No Longer Available. All Search Everything. Mercedes-Benz E-Class W Fuel SystemPage 3. Fuel Pressure Regulators If you find your car surging or stuttering you may have a faulty fuel pressure regulator. Brand Rating. Click for More Info. Fuel Pressure Regulator. Fuel Pressure Regulator 1 customer review. Fuel Level Senders and Sensors Don't get caught at the side of the road with an empty tank even though your gauge says full.

Fuel Level Sending Unit Left. Fuel Pumps In modern cars the tolerances in fuel pressure in your system can be very tight. Use this high-quality fluid transfer pump to remove old fluid from power steering reservoirs, brake fluid reservoirs or differentials that do not have drain plugs as on many later model BMWsor to fill transmissions, differentials, and any other assemblies when changing the fluids.

Fuel Pump Relay 4-Prong, Black. Fuel Pump Relay 4-Prong, Black 1 customer review. Adapter Bracket for Fuel Delivery Unit.

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Fuel Pump Assembly Lock Ring 2 customer reviews. Fuel Pump Assembly Sealing Ring. Fuel Pump Assembly Sealing Ring 1 customer review. This site was designed and produced solely by Pelican Parts. Pelican Parts is not associated with Porsche Cars North America in any manner, except for a mutual appreciation and love of the cars. All pictures and references to the Porsche name, and the car names and shapes are for restoration reference only, and do not imply any association with Porsche.

Pelican Parts is not responsible for any typographical errors contained within the site.

How to Test and Replace EVAP Pressure Sensor P0450

Information and technical articles within this website are for reference only. Consult authorized factory manuals when performing repair procedures.

By entering this site, you agree to hold Pelican Parts free from any liability arising out of the use of any information contained within. Order Online or Call: Shopping Cart. Browse Shipping Options. Project List. Order Status.Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing. Average rating from customers who received a Fuel Pressure Regulator Replacement. Learn More. Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Cars need to run at a specific fuel pressure. The regulator controls the fuel pressure and returns any excess fuel to the tank. The regulator is important to ensure that the injectors operate properly.

If the regulator malfunctions, it can cause the engine to flood. In extreme cases, a flooded engine can be a fire hazard. You may see liquid on the floor near the exhaust pipe raw gas dripping from the tail pipe. You may also notice black smoke when the engine is running partially burnt gas produces black smoke.

Not only will the car get poor gas mileage, it also may not pass an emissions test. Some fuel regulators are located in the tank as part of the fuel pump assembly. If the fuel pressure regulator has gone bad, it can leak fuel in the engine, contaminating the engine oil.

03 e320 fuel tank pressure sensor

Any time that you notice something potentially wrong with your fuel system, you should schedule an inspection. There are many signs that a fuel pressure regulator is malfunctioning, and all should be taken seriously. A malfunctioning fuel pressure regulator will often illuminate the Check Engine warning light, which is always a sign to schedule an inspection.

When gas is sent from your gas tank to your engine, the fuel pressure regulator makes sure that the fuel pressure is optimal. The fuel pressure regulator is responsible for returning excess fuel to the gas tank, and making sure that the fuel injectors get the perfect fuel pressure.

When the regulator malfunctions, the fuel pressure will not be controlled, and your engine will not run optimally. Your engine will also be at risk for fuel flooding, which can result in serious damage and even fire. Get an upfront price. Service Area.

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ALL THE PARTS YOUR CAR WILL EVER NEED

See availability. Keep in mind: Some fuel regulators are located in the tank as part of the fuel pump assembly. How it's done: Scan the computer system in the car for trouble codes.

Inspect fuel pressure regulator for leakage and proper operation. Inspect for any broken vacuum lines.

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Remove and replace fuel pressure regulator if it is bad. Change the engine oil and filter if the oil is found to be contaminated. Clear any diagnostic trouble codes. Test drive the vehicle. Our recommendation: Any time that you notice something potentially wrong with your fuel system, you should schedule an inspection. What common symptoms indicate you may need to replace the Fuel Pressure Regulator?

Poor gas mileage.