Question about 2002 Hyundai XG350

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2002 Hyundai XG350 Error Codes P1191, p1193 & P0446

Car runs and drives perfectly. Timing Belt & Water pump were replaced approximately 1000 miles ago but doubt this would be related. The vehicle currently has 102,000 miles on it. The check engine light recently illuminated and two local autoparts stores both read the same three codes, p1191, p1193 & p0446. The only issue I have experienced with this car is that occasionally the instrument panel and headlights appear to slightly dim and brighten for no apparent reason. Both while running the air conditioning and when not. Any direction or advice will be greatly appreciated. Thank you.

Posted by Axekick on

  • Axekick Jul 23, 2012

    Thank you both(Kevin Douai & swanny007). Both of your answers provided accurate information. Since the problem occurred

  • Axekick Jul 23, 2012

    it has been resolved by cleaning the fuel assembly. My mechanic diagnosed a small Evap leak but said the car is fine to drive until my next emissions at which time it will likely need attention. The check engine light is out so information provided was accurate.

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Kevin Douai

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Error codes P1191/P1193 are a paired code indicating the Electronic Throttle Sensor (ETS) had detected engine RPM's of less than 470, resulting in a potential "limp home" mode. Technical Service Bulletin #06-36-003 identified several differing possible causes, ranging from a faulty ETS -to- loose connectors -to- carbon buildup around the throttle body. Error codes P300/P302/P304 are misfire in cylinders 2 and 3. Have your fuel injection system cleaned out with a machine and replace your spark plugs. Error code P0455 indicates a large fuel vapor leak. This code can be caused by the following things:An actual fuel vapor leak, either through a hose or other damaged vapor system component, or via a loose, incorrectly installed, or missing fuel cap. A stuck closed purge control valve, which, during the self-test, will produce fuel tank pressure readings exactly the same as a vapor leak. A close valve that does not seal properly, allowing air to be sucked into the fuel vapor system during the self-test. Blockage in the line to the fuel tank pressure sensor, causing it to not see variations in tank pressure.


That is taken from Michael on fixya. I google the codes and that came up..

Posted on Jul 21, 2012

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Anonymous

  • 184 Answers

SOURCE: p0446 code

Hi, check out this article, it's detailed on what to check: http://www.obd-codes.com/p0446

Posted on Mar 14, 2009

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Timing belts are typically only used on overhead camshaft engines. Timing belts are used to synchronize the crankshaft with the camshaft, similar to a timing chain on an overhead valve (pushrod) engine. Unlike a timing belt, a timing chain will normally last the life of the engine without needing service or replacement. Timing belts use raised teeth to mesh with sprockets to operate the valvetrain of an overhead camshaft engine.

Whenever a vehicle with an unknown service history comes into your repair facility or is recently purchased, here are some points that should be asked to help prevent costly engine damage:

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* Note the mileage of the vehicle. The average replacement interval for a timing belt is approximately 60,000 miles (96,000 km).


Inspection

Inspect the drive belt for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately.

Removal & Installation

1. Raise and support the vehicle.
2. Remove the engine splash shield.
3. Rotate the drive belt tensioner clockwise to release the drive belt tension.
4. Remove the drive belt from the alternator.
5. Slowly release the drive belt tensioner.
6. Remove the drive belt from the accessory drive pulleys.

zjlimited_308.jpg

Fig. Accessory drive belt routing - 2.4L engines

To install:

1. Install the drive belt to the accessory drive pulley.
2. Rotate the drive belt tensioner clockwise.
3. Install the drive belt to the alternator.
4. Ensure the drive belt is properly aligned and seated into the grooves of the accessory drive pulleys.
5. Slowly release the drive belt tensioner
6. Install the engine splash shield.
7. Lower the vehicle.


Hope helps.

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