Helpful Automotive Resources
P0170 Code: Fuel Trim (Bank 1)The stoichiometric mixture best suited for burning is 14.7 parts air to 1 part fuel. If the mixture contains excessive amounts of air, the PCM will add more fuel to balance out the lean mixture. Conversely, too much fuel leads to a rich mixture, and the computer compensates accordingly.
P0354 Code: Ignition Coil “D” Primary/Secondary CircuitThere are several types of ignition systems, including a distributor, coil pack, or coil on plug (COP) type systems. Typically, code P0354 is set in a COP system.
There are several types of ignition systems, including a distributor, coil pack, or coil on plug (COP) type systems.
P0067 Code: Air Assisted Injector Control Circuit HighFuel atomization is crucial to the efficiency of an internal combustion engine. That’s why some vehicles have an air assist injector system that routes a metered amount of air to the injectors. Under certain driving conditions, an air assist injector solenoid feeds air to the injectors to increase the atomization