Learn more about how an exhaust leak can cause a misfire in this article. However, if the leak is instead in the intake manifold, the answer is an emphatic yes… No, that picture is after the oxygen sensors, even if you have a bad exhaust leak it will not cause that kind of a misfire
Exhaust leak causing misfire? : MechanicAdvice
I would be looking at either the ignition system or fuel related
Can you give year make a model of the vehicle and the mods?
An exhaust leak and misfire can damage other engine components, reduce fuel efficiency, and increase emissions It's best to address the problem as soon as possible. Escaping exhaust fumes can also heat up surrounding components and cause engine damage. An exhaust leak is a common cause of misfires, but it is often overlooked
An exhaust leak can create a vacuum in the intake manifold, which can suck in unburned fuel and oil from the crankcase and contaminate the air/fuel mixture. Also a damaged o2 sensor/exhaust wouldn't cause a misfire unless you're running so lean your getting detonation If the pipe was so severely restricted to cause misfiring it'd affect the whole bank. Can an exhaust leak cause a misfire
Misfires directly due to exhaust leaks aren't very common but are a probable cause
The most common causes of misfires and backfires are due to misadjustment of the ignition timing or valve timing Wrong reports to the pcm from the leak, however, can cause a misfire. Keeping this in view, can an exhaust leak cause misfires Lean exhaust code and misfire codes set on the bank with the exhaust leak present
The exhaust leak did not cause an immediate misfire But it is the root cause of the resulting mayhem
