Should I change my ignition coils when I change my spark plugs?
Time and mileage are enemies to your vehicle’s ignition wires and coils. Whenever you change spark plugs, it is a good idea to replace the ignition wires and vice versa. This will keep your vehicle running at peak performance and prevent you wasting money on unburned gasoline.
What is the code for bad spark plugs?
When P0301 occurs, it should be fixed immediately as long term driving with engine misfires could cause consequential damage to your engine. Many times, P0301 occurs when there are worn-out spark plugs, spark plug wires, or a faulty ignition coil.
How to change ignition coil in Toyota Corolla?
Click to expand… Agree with TTech, try swapping coils first. If no change inspect plugs. Keep track of which cylinder each plug came from. If you think they are good swap #4 with a different plug and put the other two back in their original place.
How to change spark plugs on a Toyota Corolla?
How to change Spark Plugs on a 2003-2008 Toyota Corolla with the 1.8L engine. This is for the Corolla CE, Corolla LE and Corolla S. This is not for a Corolla XRS though. You can purchase your replacement spark plugs with the Amazon affiliate links below. Loading…
Why does my Toyota Corolla keep throwing p0351?
The secondary side of the equation is the spark side. Which means that plugs, plug wires (if so equipped) or the spark plug itself is causing your Corolla to throw P0351. Ignition Coil “A” indicates the problem is in cylinder 1. You’ll need to look up which cylinder is number one on your engine.
Which is the primary wiring on a Toyota Corolla?
The primary wiring is the wiring harness leading from your Corolla’s ECM/PCM to the ignition system itself. A short, open, or poorly ground wiring harness is almost always what causes P0351 when it is the primary wiring side that has thrown the code.