How do you test a Porsche 944 coil?

How do you test a Porsche 944 coil?

Turn the ignition to the ON position. Jump the battery negative to the green wire on the coil. The plug should wire or spark for every time you touch the green wire. If it does not then the coil is probably bad.

Where is the DME relay on a Porsche 944?

On the older 944s, the relay is known as the fuel pump relay and is located on the fuse panel under the dash on the driver side. On later 944s and 951s, the relay is located in the fuse /relay panel in the rear left side of the engine compartment close to the windshield and A-pillar.

What would cause no spark or fuel?

If there is no spark or fuel, then the first thing I would do is check the vehicle’s fuses and relays, particularly the EFI main and ignition relays. It may be possible that one of these components has failed and is cutting off power to the vehicle’s ignition and fuel systems.

Is a 1984 Porsche 944 reliable?

These cars can and will be very reliable as long as you carry out regular maintenance and don’t cut corners. With the 944 also gaining value incredibly quickly in recent years, there’s been no better time to buy and enjoy yourself an affordable way into classic Porsche ownership.

Which faulty ignition component can result in a no start condition?

Car not starting: Another symptom of a faulty ignition relay is a no power condition. If the relay fails it will cut off power to fuel pump and ignition system, which will result in a no power, and therefore no start condition.

Why am I not getting spark from my coil?

If the ignition coil does not have spark, it’s time to check its wires. Use a test light to check the continuity on the signal wire and power wire on the ignition coil. If both wires are functional but the coil fails to produce spark, the ignition coil or the ignition control module is bad.

How many miles will a Porsche 944 last?

If well maintained, the unit lasts well over 100k miles; standard maximum boost is 1.7-1.75bar. Inspect for oil leaks from the engine and power steering; oil pressure should be 5bar at speed, 2-2.5 at hot idle.

Is a Porsche 944 expensive to maintain?

The annual maintenance cost of a Porsche 944 is $948. Repair and maintenance costs vary depending on age, mileage, location and shop.

How do I know if my DME is bad?

Common Signs of a Faulty BMW DME, ECU, ECM, PME

1. Sudden jerking or stopping while shifting gears, even though you maintain your transmission properly.
2. Fan running on High.
3. Unexplained error codes when all components have been tested or replaced.

What does the DME relay do?

A digital motor electronics relay is nothing more than two relays built into one case — it has two coils and two switches. It is used to control the switched-power circuit for the DME module, the fuel injectors and the fuel pump.