WHAT SIZE ARE THE BOLTS HOLDING THE IGNITION COIL ON THE FIREWALL OF A 1998 VW JETTA K2

It could be crankshaft sensor or the computer at fault

Fuel pressure. Pumps can die but still pump fuel, just not enough pressure.

does the vehicle start

Fallow the TOP A/C Line from the Firewall and you will see It in the Front Pass Side Fender Area

For the 1998 VW Jetta:
I do not know if you have the 2.0L SOHC In-Line 4-Cylinder or the 2.8L DOHC V-6; however I have included both below. The 2.0L has a ture Distributor Cap and the 2.8L has an Ignition Coil.

For the 2.0L SOHC In-Line 4-Cylinder:
Firing Order:
1-3-4-2
Cylinders
........(back).........
|...1...2...3...4...|
.......(front)
Distributor:
..(back)
(+)..1
2..........3
......4....(+)-screw

For the 2.8L DOHC V-6:
Firing Order:
1-5-3-6-2-4
Cylinders:
.......(back).......
|.1....3....5....|
|....2....4....6.|
Ignition Coil Connections
(back)
|.2..5.|
|.4..3.|
|.6..1.|
(front)

Let me know if this helped, or if you have additional information of questions. Feel Free to contact me at FixYa.com!

this is the O2 sensor that is just off the engine in the exhaust and before the catalytic converter, sensor one bank one, u only have one bank of cylinder

With a volt meter,check for positive 12V on the coil.

post to body metal ground when the KEY is at on position.

===

Check alarm for ignition and/or start cut off.

Bad relay on alarm cut off (Bosch type relay)

The coil pack on these are bad about being defective. You need to check to see if you have power coming from your coil pack. If you do not try changing it out, this produces 60k +/- volts that goes through your ignition wires, to your spark plugs and ignites the gas on combustion with the piston. If it's not giving off a spark, thenyou're not getting power to fire off the engine.

hallo
change ignition coil.
to be certain you can try this. when car works sprey some water on ignition coil. if car dies you solve yor problem.

marko

It could just be out of adjustment. I recommend going to a dealership for the part. The VIN number should identify your car specs exactly to avoid getting the wrong part