Q: It has a bad miss and back fires sometimes I have changed the spark plugs and fuel filter what else could it be

asked by on

It has a bad miss I have changed the plugs and the fuel filter still missing what else can I try it is a 1992 bmw 325i

My car has 280000 miles.
My car has a manual transmission.

Hello there, it is very common to have a misfire fault as vehicles age and go up in mileage. The most likely cause would be the ignition coils, fuel pump, fuel injector, MAF sensor, oxygen sensor, or a wiring fault. If you need some assistance with this, consider enlisting a qualified technician, such as one from YourMechanic, who will be able to diagnose your misfire fault and perform any repairs required.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. It has a bad miss and back fires sometimes I have changed the spark plugs and fuel filter what else could it be

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: Q: My car is not turning over.

Cars will start with no oxygen sensor installed or a sensor that is completely failed. AutoZone has no equipment whatsoever that can DIRECTLY test the operating condition of an oxygen sensor, let alone the training to interpret the waveform that...

Q: idle is high after driving

Hey there. Normally a vacuum leak is the most common cause of a high idle but many issues may cause this. Other possible causes of a high idle are improper sensor inputs, an idle air control valve, a faulty engine...

Q: DMTL and oil filter housing and pan gasket need fixing - what is essential to pass the inspection?

If the check engine light is on, or if there are any trouble codes on the ECU the car will not pass inspection in North Carolina. The DTML Pump is part of the evaporative emission control system. It's job is...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.