Skip the auto shop - Our mechanics make house calls

Q: Truck won't run like it used to

asked by on

I just put a K&N air intake in my truck and it stalled and then there was a rough idle. Then when you give it gas it feels like it has half the power than it had and then it gets twice the power out of nowhere then the next day put the stock on and got the same problem. Got my scanner out and got some p0104, p3425, p3444, and p3449. Need help fast

My car has 90000 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. Believe it or no...

Hi, thanks for writing in. Believe it or not, this happens quite a bit when people swap OEM air filters to K&N or other products. It has nothing to do with the aftermarket part however. The P-0104 OBD-II error code along with the others you listed are directly related to the mass air flow sensor. If the sensor is damaged, or was unplugged during your K & N installation it will trigger all these error codes. Try looking at the mass air flow sensor to see if the sensor was unplugged, then try to reset the error codes and start again. If this doesn't help, I suggest contacting a mechanic to give you a hand trying to diagnose your problems. Here at YourMechanic, we can have a technician come to your home or office to inspect and diagnose this issue for you, and make or suggest the necessary repairs.

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: knocking sound

You would first need to determine if the engine noise is a lower engine noise or an upper engine noise, as this would make a big difference on the repairs that would be needed for your 2000 Chrysler Town &...

Q: I have a Shogun 3.2 did. The mut scanner from a friend reveals a fault code 35 and says the engine rpm at 3000 and 330 n/m.

Hi there. The fault code 35 reveals that the O2 sensor bank one (upstream sensor) has picked up an issue with the emission quality of the exhaust. This means that the engine could be lean or rich in fuel mixture....

Q: Intermittent issue where after a stop car is stuck in first, speedometer at zero. Had output speed sensor changed, no change.

Hello there, a few possible faults could cause the vehicle to become stuck in first. The most common would be low fluid level, shift solenoid, transmission range sensor, or a transmission mechanical fault. I'd suggest getting this looked at by...

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...
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...
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.