code p1518

check engine

My car has 132000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hello there, many faults will cause the P1518 code to be found on your Ford. Without the model and year I can only offer very general advice. The P1528 code is indicating that the intake manifold runner control fault stuck open. The intake manifold runners use a flap to control the amount of air allowed into the intake, when one of these flaps is stuck open the P1518 code will be triggered. Common causes are intake manifold controller failure, failing intake, carbon buildup or a wiring harness issue. A qualified Technician will be able to diagnose your intake manifold runner issues and make any repairs required to resolve the issue.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

p1518 is a diagnostic trouble code for intake manifold runner control fault stuck. open. under this circumstance. stop driving and repair your vehicle immediately it indicates that the pcm has detected a problem with the intake manifold runner control system.
Common signs include difficulty starting the engine, the Check Engine Light coming on, engine misfires, and a decrease in power and acceleration.
Aside from a decrease in engine performance, some other common symptoms include a reduction in fuel economy, and you may experience the engine surging or sputtering when turned on.
If you suffer from a intake manifold runner control that is stuck open, there are a few symptoms you will probably notice. Chances are that at least one of your cylinders is not firing, which can be quite easy to recognize. The three symptoms this might cause are: Poor engine performance. Poor fuel efficiency.
Most of the time, the P1518, P1518, and P1520 codes come from an issue with the IMRC. It may be that the IMRC actuator is faulty and you need to replace it, that the actuator harness is open or damaged, or that the actuator circuit is not connected appropriately and must be reconnected.
The P2017 code indicates an issue with your intake manifold system. This specific description of “Intake Manifold Runner Position Sensor/Switch Circuit High” means that there`s an abnormally high voltage that the powertrain control module (PCM) has noted in the position sensor of the manifold airflow-control device.
Poor Performance and Cooling

If the intake manifold is bad, it can mess with the engine`s air-fuel mixture, which can then mess with the engine`s performance. You may see a reduction in power, uneven acceleration, and even backfiring. The same is true for the engine`s cooling system.

Yes and it is a common cause of Check Engine lights.
Can You Continue to Drive with a Bad Intake Manifold Runner Valve? Technically, you can usually drive with a bad IMRC valve. But you shouldn`t continue to do so for long. As previously mentioned, the problem can trigger the check engine light—and that will cause your car to fail a state emissions test.
Parts cost on average $139.11 – $170.03, and there is typically no service cost. This service typically takes less than 15 minutes to complete. If your engine performance is lacking or your fuel consumption has increased, you may need an intake manifold runner control replacement.
DTC P1518 sets if the battery voltage is low. If the customer`s concern is slow cranking or no crank because battery voltage is low, ignore DTC P1518. Clear any DTCs from memory that may have set from the low battery voltage condition.
The P2101 code will typically state the description as “Throttle Actuator “A” Control Motor Circuit Range/Performance.” This can be difficult for beginners or DIYers to untangle, but it typically means that there`s an issue between the actual throttle position of the vehicle and the throttle position that the …
Where are these sensors located? They are located either in the intake air tubing or intake manifold and may be incorporated into the MAF sensor.
A cracked plastic intake manifold can be fixed a couple of ways. You can replace the manifold (or the section that is leaking), you can seal the leak with epoxy or RTV silicone sealer, or you can repair the leak by welding the plastic with a high-temperature heat gun and a compatible rod of plastic filler material.
Generally a really bad intake manifold gasket will make a car run rough at idle and/or cause a service engine light to illuminate. … As far as driving the car, as long as you don`t have a fluid leak or the car is not stalling or running rough, it should be fine to drive for a few months.
Most experts suggest that a manifold will have a life expectancy of six to eight years. However, heavy use in saltwater can see this drop to as low as three years, while lightly used freshwater boats can get up to 20 years out of a manifold.
One tell-tale symptom of an exhaust manifold that needs to be replaced, is a ticking noise in the engine. An exhaust leak in the manifold can cause a ticking sound much like hearing a musician`s metronome, especially when the engine is cold.
Sporadic Idling

One of the primary signs of a vacuum leak is sporadic idling. You might notice that your engine is idling fast while you are at a stop, particularly if your tachometer is bouncing up and down or resting at a setting that is too high. The sporadic idling is being caused by too much air in the engine.

Your vehicle`s intake manifold has a flap that is controlled by the intake manifold tuning valve, which regulates the pressure within the manifold and redirects air to the correct areas within the vehicle`s engine.
The compressor relies heavily on the manifold hoses that are attached to it to circulate the gas correctly and efficiently. These hoses can sometimes fail by simply developing a small leak that, over time, will cause the refrigerant levels to become low.
The IMT valve helps increase engine torque by changing the length of the runner in the intake manifold to match the conditions in which the vehicle is being driven. When the tuning valve gets stuck open, it is possible that the engine may not perform optimally.
The air required for combustion in the engine flows through the variable intake manifold to the intake valve. Nowadays, common fuel injection systems for petrol engines inject the fuel in the intake manifold immediately prior to the intake valve.
The air required for combustion in the engine flows through the variable intake manifold to the intake valve. Nowadays, common fuel injection systems for petrol engines inject the fuel in the intake manifold immediately prior to the intake valve.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

I have a Code P0601 on the PCM. I replaced the PCM, and now I have a code P0118, code P0123, and code P0193.
ANSWER : Hi there, the short answer to your question is no . A PCM with a P0601 (which is a memory module error in the PCM) cannot reliably retrieve codes for the codes you list (P0118 – coolant temp sensor, P0123 – throttle position sensor, P0193 – fuel rail pressure sensor.

Most likely, the P0601 prevents the PCM from getting any codes from the engine sensors. The memory module error may cause in data corruption for collected sensor values, lose of data over multiple sampling periods, or failure of the data collection to work at all. Replacing the PCM was a necessary expense.

If you need assistance with the "new" codes, I would recommend having a Check Engine Light inspection completed by a mobile, professional mechanic, such as one from YourMechanic, to diagnose the new error codes and get an accurate assessment of the repairs needed.

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Can i retrieve CEL code from car … forgot what code it hade in my car .. put headgasket sealer and i erase the code ..
ANSWER : Once a trouble code is erased, it cannot be retrieved. The engine controller does not have a "recycle bin" like they have on Windows. If the car still has a problem, the code will come back up after some driving. However, the controller will not turn on the CEL until it has seen the malfunction on two separate "trips." A "trip" is a driving cycle where the car is started cold, driven until it is fully warm and through a certain number of accelerations, and shut down. So you might not see the CEL for a couple of days. As for the "head gasket sealer," I wouldn’t hold out too much hope of that solving a problem. At the very best it might put off the symptoms for a short while. If you need help interpreting codes that come up, or solving a head gasket issue, contact Your Mechanic. They can send a technician to your home or office to read the codes on your car and help you decide what to do.

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It threw a code 21 , throttle position sensor bad code. i replaced it and the code went away but i still have no spark.
ANSWER : Hello and thank you for contacting YourMechanic. The problems that you are encountering with your vehicle, could be caused by the harness to the Throttle Position Sensor (TPS) or the computer itself.

Check the harness to the TPS for any debris or any corrosion. Hook up a paperclip to the harness and turn on the key. Use a multimeter and check for voltage at the pins of the harness. Make sure that the ground on the sensor is grounded and has no resistance. If you find that the harness is having too much resistance, then I recommend having the main engine harness replaced. If you have replaced the harness and still have the same problems, then the computer will need to be flashed or replaced.

I recommend having a professional, like one from YourMechanic, come to your home to diagnose your car’s no start condition before replacing any parts.

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Service engine warning, MAF code and O2 sensor code, along with check suspension light are turned on
ANSWER : Hello, it sounds like you have quite a few things going on. I am going to do my best to break them down for you.

First if the engine is very loud when idling and the belt has already been replaced, there may be an issue with the tensioner or idler pulley.
Next, the Navigator is known for needing service to the air suspension system as it gets up in miles, the most common causes of these are the air struts themselves have failed, or one of the air lines has a leak.
Lastly, if the O2 sensor and MAF are continually coming back after the sensors have been replaced, the most common cause would be either an exhaust leak or a vacuum leak.

Qualified technicians such as the ones at YourMechanic will be able to diagnose these issues and recommend the best path to repair, starting with a diagnosis of your warning lights.

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EGR code, Cylinder 4 misfire code 0304 detected.
ANSWER : Hi there. The Exhaust Gas Recirculation (EGR) valve may be not designed for the emissions requirements for U.S. standards. If the EGR is pulling from cylinder number 4 and after replacing the EGR and the computer detects a misfire, then the EGR is malfunctioning and not responding. When you close off the tube to the EGR and the EGR light comes on and the misfire light goes out, then the EGR is not responding to your emissions system. I recommend replacing the EGR with the OEM specified part for the engine and all of the issues should go away. If you need further assistance with your misfire and EGR, then seek out a professional, such as one from Your Mechanic, to help you.

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Check Engine Light codes. 2006 Mercedes Benz E55 AMG
ANSWER : Since you are getting many different codes from different areas of the engine, you may need to have the system hooked up to a factory scanner since most of these generic codes do not cross over in my repair software. I would also check with the local dealer to see if any service campaigns are open on the vehicle since there are over 30 possible campaigns that could pertain to this vehicle and some of the problems you are having with the secondary air system. This may be the cause of some of the codes and supercharger disabling. If you’d like to have this checked elsewhere, a qualified pro from YourMechanic can come to your car’s location to go through each Check Engine Light code firsthand and have them resolved.

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P2002 DTC Particulate Trap Efficiency Below Threshold
ANSWER : Hi there. The P2002 could be solved by checking the following conditions:

Driving too slow or idling the engine too long will cause this code. It takes heat in the 932 F to 1112 F range to burn off the soot in the DPF
There is an air leak forward of the DPF
Fuel with a large percentage of sulfur will clog the DPF
Aftermarket accessories and performance modifications will cause the code P2002
A dirty air filter to the engine
The DPF may be damaged
There could be a defective ECU (computer)

If all of the symptoms are check and all are functioning properly, then I recommend seeking out a professional, such as one from Your Mechanic, to help you diagnose the emission system to your vehicle.

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I had my ECS replaceed and my TPS and the code for TPS was gone but the ECS code came on after 5 miles is it possible the new one
ANSWER : There is a possibility the new module is faulty, but there may be something else going on with the car as well. Wiring can be an issue with these vehicle so consider hiring an experienced technician like one from YourMechanic to loo at the car and offer a personal diagnosis. You can have bad knock sensors offering false readings or some faulted wiring.

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