Reyhan Blog: Bosch Ignition Coil Testing

Bosch Ignition Coil Testing

Well test this part of the ignition coil second for obvious reasons. You can test a 12 volt ignition coil for effectiveness by checking the resistance of its wire windings with a multimeter.

Volvo Ignition Coil Module 850 C70 S70 V70 1993 1998 Bosch 115623

Bosch ignition coils are long lasting with precise corrosion resistant connections.

Bosch ignition coil testing. Better is to test the coil under actual load. If its bad youll get a weak spark or no spark at all. The insulation is made from high quality synthetics thereby ensuring a high breakdown voltage.

Then use a spark plug socket to remove the spark plug and carefully attach the spark plug wire back in the spark plug but dont put the spark plug back in its socket. To test an ignition coil turn the vehicle off and open the hood. The advanced technology also helps the engine sail through emission tests.

All bosch ignition coils are built to achieve or exceed oe specifications and are known industry wide for their reliability and performance. Should be roughly 3 5 ohms. Testing a spark plug ignition coil.

The secondary resistance from one push on terminal to the. Newbiie how to test resistance on a bosch ignition coil. For 12v coils the primary resistance between the push on terminals.

To test the coils secondary winding attach the test probes to the outer 12 volt pole on the coil and the center pole where the main wire goes to the distributor. In this step by step guide we will go over how to test if an ignition coil is good or bad by testing the resistance using a digital multimeter. Hi tension terminal is about 10000 ohms.

Most ignition coils should have a secondary resistance falling somewhere between 6000 to 10000 ohms. Part 1 of 1. While ignition coils will generally last for the life of a vehicle faulty spark plugs or spark plug wires can send irregular voltage surges through the ignition coil causing the coil to burn out.

Test the secondary circuit of the ignition coil. Put on a pair of insulated gloves and remove one spark plug wire from its plug. Bosch ignition coils convert low voltage into high ignition system voltage creating an electric spark sent to the spark plugs which ignites the fuel.

Connect your multimeter to the positive terminal or pin of your coil and to the high output terminal that goes to the spark plug.

Coil On Plug 4 Wire Trigger And Feedback Voltage