How do i change the spark plugs on a vw bug 2000 1.8 L fuel injected engine

You should hear the fuel pump run momentarily when the key is in the Run position. Ensure the engine has a good spark by removing one of spark plug boots. Stick a phillips screwdriver in the boot, and hold the handle of the screwdriver, and allow the shaft near ground. (motor works best) Have someone crank the engine and look for a good blue spark arch from the screwdriver and engine. If your getting good spark, then check the fuel pressure on the fuel injection rail.

If it is not firing on one cylinder, check and eventually replace distributor rotor, or electronic injection module.
Check also for camshaft problems.

it is a fuel injection but all gas engine have spark plugs
follow spark plugs wire to no 1 cylinder remove plug
hope it helps

Check the fuel pressure

depends on the type of engine. DOHC engine has coil on plug ignition system where the OHV has a coil pack with spark plug wires going to it. Both engines only have one fuel injector per cylinder.

Hi,


If the engine cranks over normally when you attempt to start you car, but the engine does not start, the problem may be NO FUEL, NO SPARK or NO COMPRESSION. The engine needs adequate fuel pressure, a properly timed spark and normal compression to start.


1) To find why the engine won't start, remove the air inlet tube from the throttle body, push the throttle open and spray a small amount of aerosol starting fluid into the engine. Crank the engine. If it has spark and compression but NO FUEL, it will start and run a few seconds before dying. If it does NOT start, it probably has NO SPARK.

2)Another method to check for spark is to pull a spark plug wire off of a spark plug (if it has plug wires, coil-on-plug ignitions do not) and place the open end of the plug wire near a metal surface on the engine. Have a helper crank the engine while you watch for a spark. DO NOT hold the wire while doing this as it can shock you. If you see a spark, the problem is not spark, but most likely NO FUEL or NO COMPRESSION. If you do not see a spark, the problem is in the IGNITION CIRCUIT.

3)Proper fuel pressure is critical for fuel injected engines to start and run. You should hear the fuel pump inside the fuel tank buzz for a couple of seconds when the ignition is turned on (no buzz means the pump is not running and the engine is not getting fuel). You can smell the tailpipe for gasoline vapors after cranking the engine. If you smell gas, the problem is likely not fuel but NO SPARK. You can also remove the plastic cap and press the Schroeder valve test fitting on the fuel rail to see if there is any fuel pressure to the engine (not a very accurate test because fuel pressure must be at a certain level for the engine to start, for that you need a gauge). Even so, no fuel at the fuel rail would tell you fuel is not getting to the engine.


Thank you!!

STOP UP AIR FILTER OR STOP UP FUEL FILTER.FUEL INJECTION PUMP OUT OF TIME OR DEFECTIVE.THE TURBOCHARGER OR WASTEGATE FAULTY.HAVE VECHICLE SCANNED.

First thing to do is change the fuel filter, spark plug wires, spark plugs, and air filter. If this does not solve the problem then I would have the fuel injection system cleaned out and also change the oxygen sensor

You're in the TDI (diesel) solutions section so it uses glow plugs.
If it's a petrol engine 2.0L then it would be accessible above and below intake manifold using a swivel spark plug deep socket.

Are you referring to the SPARK plugs? The Mirage's 1.8 engine does not use standard spark plugs, because it is fuel injected. It uses 4 fuel injectors that has gas hookups & electrical hookups. They are located on the head in the back.