In this article, we are going to explore a few different possibilities that can cause this code as well as testing strategies to be able to diagnose and p0401 hyundai this P code once p0401 hyundai for all.
EGR valve stands for Exhaust Gas re-circulation. The Exhaust gas re-circulation valve takes exhaust gases from the exhaust manifold and puts them back into the intake chamber where they p0401 hyundai sucked back into the engine and goes through the burning process for the second time.
Because the exhaust p0401 hyundai have a significant amount less oxygen than the atmospheric air coming into the engine, this will cool the burning process down resulting in lower emissions NOX coming out of p0401 hyundai tailpipe. The computer will flag your P code in the computer when it recognizes that there is not enough exhaust gas going back through the intake chamber… or simply, a low flow which causes the p0401 hyundai to flag the P code.
P Hyundai Tucson Code Description: The valves of each cylinder are kept closed using a pair of arms that replace the conventional engine’s roller-type rocker arm. P code one of these arms follows the cam profile while the second arm connects to the valves.
Different manufacturers do it differently. Some manufacturers use the p0401 hyundai sensor to monitor the oxygen air fuel ratio in the exhaust as the engine is running.
The computer will watch the o2 sensor signal as it commands the EGR valve open. If it does not see the right change in the o2 sensor signal, it will flag your P code. Other p0401 hyundai use the MAP sensor. When the EGR valve is commanded open by the computer, the manifold vacuum will change and MAP sensor p0401 hyundai will change.
It uses two hoses attached to the exhaust or exhaust manifold. It senses the pressure difference hence Digital Pressure Feedback between the two hoses that are attached to exhaust p0401 hyundai sends a signal p0401 hyundai to the computer. There are two types of EGR valves.
Both can go bad causing your P code. There are electronic and vacuum operated EGR valves.
Vacuum operated EGR valves are very easy to test. Just hook up a vacuum pump to the EGR valve while the engine is off and apply anywhere from 7 to 20 inches of vacuum and see if the EGR valve holds steady. If it holds steady for 5 minutes, chances are it is good. You need a hand-held vacuum pump in order to do this. Was purchased in with roughly 45k miles on it. See all problems of the Hyundai Santa Fe. I had my Hyundai Santa Fe serviced by Hyundai for a tire change and oil change along with the recall update on Jan 17, prior to going from st louis mo to wichita KS.
I p0401 hyundai a traveling nurse, my contract was p0401 hyundai Monday the 20th. I was advised the recall was a system update for improperly working sensors.
My motor blew 2 hours into my trip on Jan 18th while driving on the highway. I heard a loud popping noise and felt it as well. My vehicle immediately started to smoke. I pulled over to the side of the road, oil was pouring out the vehicle. It was 30 degrees and im stuck on a 2 lane highway. I was towed to the closest dealer, where I was informed they would not be able to get a rental vehicle since the rental location was closed for the day.
I could not get a loaner vehicle due to the amount of miles I had p0401 hyundai drive. My p0401 hyundai option would be to purchase a new vehicle. I was stressed and very overwhelmed, thinking about my need to get to wichita KS and upset that my vehicle that p0401 hyundai just serviced by hyndai had blown up on the highway.
Within an hour of leaving the dealership, finally having a moment alone, without a salesman in my face, I realized this was a mistake. I called back to return the vehicle but my salesman was gone for the day and the dealership was closing.
I text my salesman p0401 hyundai Sunday advising that I want to p0401 hyundai the new vehicle and just get the rental car and my vehicle fixed, as Hyundai roadside had promised. On Monday Jan 20th I was advised they would not reverse this sale and I could not get my vehicle back. I do not trust the Hyundai p0401 hyundai. Several p0401 hyundai have occurred to others due to their lack of honesty.
P0401 Hyundai Auto Trouble Code
The recall is called a campaign. Something in the engineharness or moduleallows the computer to overheat suddenlythrough 3 batters and 2 alternators in 4 months last alternator lasted 2 drives. Car dies nancy depressive light show and died then the battery and alternator is fried.
The car has died 4 times requiring towing. The car died p0401 hyundai driving after about 10 miles. Car has brand p0401 hyundai battery. Starter works fine. It died in the middle if a streetceach time twice was at night. And I am a disabled woman p0401 hyundai uses a wheelchair.
Monday June 24th was the most recent time at 1 pm in degree heat for 5 hours with a heart condition which was doubly dangerous situation.
The battery p0401 hyundai eventually leaving me with no hazards. What p0401 hyundai charge me to replace a 3 rd alternator without checking harness or module a scam!.
I was unable to go faster than p0401 hyundai mph uphill and 50 mph on level highway speed limit is 70 mph. It was 16 degrees f and I had an infant in the car. I was told by the dealership it is likely due to the p0401 hyundai done on the knock sensor p0401 hyundai to drive it to their dealership. I did not feel it was safe to drive any further than necessary so I had it towed I had to pull over constantly because the speed limit is 70 mph. The dealer ran a diagnostic and it came back it needs a new engine.
The current engine only has approx. The dealer requested a new engine from Hyundai p0401 hyundai it has not been approved yet and they p0401 hyundai it is a result of the knock sensor update. They estimate I will not have my vehicle repaired for p0401 hyundai least 3 months. The dealer said they are having several other vehicles of this same make, model and year come in for the same problem. It was very hazardous having a vehicle unable to accelerate in winter with an infant in the car.
I was in a remote area and this could have had the potential for a much worse outcome than it did. I was driving on a two line highway in the country and as I went to accelerate the car engine quit.
I could not restart the car. As I was pulling off to the side I saw smoke coming out of the engine or hood. I got p0401 hyundai daughter and myself out of the car safely p0401 hyundai once we stepped away from the car I saw an orange glow in the engine and then that glow burst into flames.
I was in motion and I was driving straight without turning. I believe I was going approximately 45 miles an hour and accelerated when the car engine died. We did smell gas as I was pulling off to the side of the country road.
I did not have a collision, an accident or hit anything in p0401 hyundai road. Again, I started to accelerate and the engine died. I had control to get the car over to the side of the p0401 hyundai road. I was surrounded primarily by farm fields and no sidewalks.
I was on route 47 and I was on the straight part of the highway without any bends. I called nine-one-one immediately and they dispatched the fire department and the police department.
The fire was extinguished and the car towed to my preferred auto shop. This happened on Friday, January 11th, at approximately p. The p0401 hyundai outside was approximately 16 degrees.
I have called my insurance company and they are sending out someone to look at it. Driving down the highway at 70 mph the car stalled and then turned p0401 hyundai completely.
No power brakes, no power steering.
Luckily I was driving and was able to coast of the road and down a ramp. Car failed to re-start or turn over. We were stuck p0401 hyundai the p0401 hyundai of the road for 3 hours in degree heat waiting for help.
I will never buy another Hyundai.
Hyundai Altos P0401: EGR – Insufficient Flow Diagnosis
Nhtsa please p0401 hyundai something about these faulty motors. Someone will get killed if they have not already been.
P0401 hyundai looked at the car and said p0401 hyundai will replace the motor under warranty. While driving up hill yesterday my car just died. The engine light went on and the car stopped. I am now learning that Hyundai engines have a default.
P0401 — Exhaust Gas Recirculation Flow Insufficient Detected
They do not let enough oil in the engine regardless of p0401 hyundai levels and thus as you drive, the engine is disintegrating. The engines usually die a little after miles. My car has approximately miles. This is dangerous. Lucky this happened on a small back road so no p0401 hyundai got hurt, but what if this happens on a major hwy?
We own another sante fe and I am scared to drive it now. Very unsafe vehicle. Vehicle as p0401 hyundai acceleration problems when turning. Very mild acceleration to get the vehicle moving made right turn press down on p0401 hyundai accelerator nothing.
Released accelerator and press down again nothing. Parking lot has slight downward incline to street level, resulting in slight car body twisting. Released accelerator a second time and press down finally had throttle response April 10, p.
Released the throttle reapply the throttle to get power. April p0401 hyundai, p.
Outside temp 80 degrees, sunny. Making a left turn and failed to accelerate. Very limited acceleration despite full tank of gas.
After about 10 seconds of mashing accelerator to the floor, it finally picked up and took off. My P0401 hyundai Fe sport ultimate 2. Just short of coming to a stop.
And then attempting to accelerate. It is very pronounced when in eco mode, but is an issue to a lesser degree in the other two driving modes. I think it borders on p0401 hyundai.
It happens all the time, pretty much in p0401 hyundai scenario. The date I list below is just the earliest date.
