Skip the auto shop - Our mechanics make house calls

Q: Runs rough and misfires

asked by on

it has new plugs and wires code reader says o2\s are good both of them it has a miss number five cyc. code reader says some thing code reader says some thing about trigger system i never herd of a triggering system on these it runs rough at speed it pops and coughs can any one help with this regards joe

My car has 230000 miles.
My car has an automatic transmission.

Hello. The trigger system that your codes may be referring to could be the crankshaft or camshaft position sensors. Many engine management systems use these signals as a trigger point for their ignition systems. It could be possible that there is a problem with the sensors, or perhaps the associated wiring or connectors. Similar symptoms can also be caused by other issues, such as fuel or ignition system problems. If you are unsure, I would recommend having a professional technician, such as one from YourMechanic, visit your location to diagnose what may be causing your misfires and warning lights.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Engine misfiring

I would suggest checking the timing and checking for vacuum leaks. Misfiring is typical when the timing is not accurate as it relays inaccurate orders to your car's ignition system. Vacuum leaks can also cause this as they can create...

Q: Where is the A/C compressor low pressure side service port?

Hello there, the answer to this problem is a bit complex. When the system is low on refrigerant, in more cases than not, there is a leak that is causing the low levels. Simply adding refrigerant may only work for...

Q: I had the mechanic to replace my vehicle speed senor and now my speedometer do not work. what must do to get my speedmeter working

You will need to first determine if the speed sensor is faulty or not. If the sensor is working correctly and was connected up then you will need to determine if the speedometer is broken inside. If the miles move...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.