Hey. I have a 2005 ford focus 2.0 zx4. I changed the rout...
Responses
Mike V.
393 days ago
Hi, my name is\*\*\*\*\*’ve been a technician on Just Answer since 2007 and I'll be helping you today. I'm sorry to hear you are having difficulties with your vehicle. I know how inconvenient car trouble is, but together, we will get your vehicle back up and running quickly.
May I ask whom I am chatting with today?
Customer
393 days ago
Dustin
Mike V.
393 days ago
HI Dustin, it's nice to meet you.
Do you still have the factory air cleaner so you could install it and see if there is any change?
Sometimes the different air filter can cause the maf code to appear.
Also, if you have the specific P codes can I get them?
Customer
393 days ago
No I transitioned the box it is no longer for stock. The codes I do not have just left bank o2 sensor and maf sensor. I changed maf. Did not change or yet. No problems till todayDid not change o2 yetThe air intake is replica of k/nCan the maf wire plug be the problem?
Mike V.
393 days ago
I understand, it sounds like the air filter is causing the issue since there wasn't any problem prior.
Try unplugging the maf sensor and see if it will run any better for you. Sometimes they will. If the K&N is a cold air intake, you may need a tune to run it.
The O2 won't cause the bucking issue, but the maf will, that's what you should be concerned with first.
Customer
393 days ago
Okay, I read it doesn't need tuning after install though.?
Mike V.
393 days ago
The wiring can cause the issue, but it seems odd it would happen right after replacing the air filter. That shouldn't really cause any problem. Sometimes the pins or wires push back out of the connector, so make sure they are good to go.
Some don't, but with the issues you are having, something is amiss, only since you installed it really points to an issue there.
Try the test and let me know how it goes. Don't unplug it with the car running, unplug it, then start the car and see if it's any better.
Customer
393 days ago
Okay, thanks
Mike V.
393 days ago
Let me know how it goes.
Customer
393 days ago
Hey it is NOT bucking now. What effects do you think it will have on driving without maf plugged in? Can I bypass it or something so I can get the check engine light off for future driving? Thanks
Mike V.
393 days ago
Well, you can drive it that way, but the light is going to stay on. You won't be able to bypass it. You might have a defective aftermarket sensor though, so if you can take it back and get another to try.
If there is a still an issue I would contact K&N and find out what the deal is with their air filter.
Customer
393 days ago
Ok thanks
Mike V.
393 days ago
You're welcome.
Still not sure what you need?
Have a certified mobile mechanic diagnose what's wrong with your car, at your home or office.
Top Questions
Trending Topics
What others are asking
What does it mean when the Brake System Warning Light comes on?
The Brake System Warning Light tells you when something is wrong with the brake system on your vehicle. It is necessary that the brakes function properly to maintain safe driving practices. If the Brake System Warning Light comes on, it...
Car misfires when driving 45+ mph for extended period of time
The code P0304 is a misfire on cylinder number four. The reason it is misfiring at cruising speed is that is when the engine is running its leanest and the coil is finding an easier path to ground than through...
I bought a used vw beetle 2001. diag test came up with codes t0300 t0303 t0172 t0768 mechanic said he would charge 900.00 for the
Each of these codes are for different problems, and would need to be diagnosed. If you are low on coolant, then your misfire may be due to a blown head gasket and the first three codes. The last code, P0768...
Prominent vibration throughout van when AC is on
Hello. The heat issue that you have with the van sounds like you have a blend door issue under the dash. As for the vibration I usually check to see if the idle is getting too low when the AC...
Starting problem
At 180.000 miles, it could be just about anything. The P0161 and P0140 codes are oxygen sensor codes, and probably don't have anything to do with the starting issue, though you should have that investigated (https://www.yourmechanic.com/services/air-fuel-ratio-sensor-replacement). The P0300 code however...
My car leaked all of the oil from the oil filter and now it's making a loud thumping noise - did the engine pop ?
Hi there: It's really difficult to tell you for certain what's wrong with your Saturn without completing a visual inspection. However, if you had to add half of a gallon of oil, that's not a good indication that internal components...
After installing 2 new sub woofers in the vehicle, there was a pop and now the engine will not start.
Hi there. It seems that the ground wires to the amplifier was not hooked up properly and shorted out either the fuel pump or an electrical circuit near the rear of the vehicle. It is best to relocate the ground...
When rpm gauge rise high and go low
Hi There, It sounds like you may have a dirty or failing idle air control valve causing your engine idle to fluctuate and eventually stall. The idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) is a small valve on the engine's intake system...
RPM fluctuates and jerks
What you are describing sounds like a dirty or failing idle air control valve. The idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds...
Browse other content
Cities
Estimates
Hey. I have a 2005 ford focus 2.0 zx4. I changed the routine schedule 150,000 mile air filter with a k/n high flow kit. I cleaned the throttle body while was apart. Also cleaned maf. Started it and idled and reversed great. Then w...
Hey. I have a 2005 ford focus 2.0 zx4. I changed the routine schedule 150,000 mile air filter with a k/n high flow kit. I cleaned the throttle body while was apart. Also cleaned maf. Started it and idled and reversed great. Then when I put pedal down it bucks the car does. After 5 min driving check [engine](/topics-engine-ford/) light came on. Called for maf and o2 see Mechanic's Assistant: Does the light stay on, or does it blink? Sensor I replaced maf Still same thing and same codes Mechanic's Assistant: Are you fixing your Focus yourself? What have you tried so far? Light stays on Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? Nomam