Skip the auto shop - Our mechanics make house calls

Q: Random misfire cylinder 123

asked by on

I'm having a problem with my Audi with random misfire in cylinders 123 I just bought the car it's been sitting in the dealer for about a month or so I started car check engine light is on, it says inspection is due , I got a oil change including oil filter new, car ran smoother throughout the week car has been performing kind of odd the check engine light stays on and flashed at certain times when car is on , the car started shaking like it was about to turn of but it didn't on my way home from work, I took it to a local mechanic they said it was the coils so I bought 4 new coils and spark plugs thinking the problem would stop but it didn't car still shaking at random moments of the day so I payed 450 for that a waste, I took it to another mechanic for foreign cars they're telling me it could possibly be the fuel injectors the car feels weak and the car sometimes in the morning won't start until I hit the gas then it cranks up I got a fuel system cleaning shake stopped but cel light on

My car has 88000 miles.
My car has an automatic transmission.

A: I'm curious as to what codes are still ...

I'm curious as to what codes are still active. Is it still a misfire code? Several other component failures can cause "misfire" issues - a clogged exhaust gas recirculation valve, a failed diverter valve, even a failed cam phaser. But - each of these will generate an additional code with some hint of its source.

If you decide to get this fixed, I would recommend having your Check Engine Light inspected by a qualified technician, like one from YourMechanic, to diagnose this problem, get an accurate assessment of damage and cost estimate for repairs. YourMechanic can dispatch a mobile, professional mechanic to your location for this repair.

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・Save up to 30%

Get a quote

What others are asking

Q: I was accelerating from a stop and a shaking happened. sounded like the engine and a orange emblem came up screen came up.

In order to give a better answer, I would need to know which light illuminated. If my memory serves me correctly, the Check Engine Light is in the same zone as the fuel level gauge. In this case, if the...

Q: Should a warped cylinder be caught in a diagnostic inspection?

Hey there. It sounds like you had an alternator problem and it was replaced. Then the water pump went out and you overheated the engine. When you blew the water pump, the mechanic could not check to see if the...

Q: Fuel issues - 1999 Chevrolet Venture

Hi there. You may have a misfiring plug or plug wire that has not caused the Check Engine Light to come on yet, but may have stored a code. Have the computer scanned first. You may just have a carbon...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...