Question about 2002 Hyundai XG350

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2002 Hyundai xg350 base, starts, then stalls while driving. Changed plugs,wires,coils, egr, and intake gasket. Had codes po335, crank pos sensor a, po1191 po 1193 limp home mode and p1632. Cant figure whats next to repair. Is it the ECU?

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Posted on Jan 02, 2017

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SOURCE: i need to set timing on my hyundai xg350

It is a pain in the **** on the 3.5L. One trick I have found is not only do you have to take the hydrolic tensioner off, but it makes it easier if you also loosen the manual tensioner right by the hydrolic one. there are 2 holes in the pully. when you finally get the belt on when lined up correctly, turn the tensioner so the belt is really tight, you should be able to pull the pin on the hydrolic tensioner and put it back in. If the belt is too loose in front one of the cams will spin to one tooth off. have patience, these belts are a pain!!!!!!

Posted on May 11, 2009

ghost4548
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SOURCE: Emission system codes

P0421 - Warm Up Catalyst Efficiency Below Threshold (Bank 1)
P0171 - Fuel System Too Lean - (Bank 1)
P0446 - Canister Close Valve Malfunction
P1191/P1193 - Limp Home Valve - Low RPM
Before replacing the catalytic converter (bank 1 next to the firewall, Bank 2 is near the radiator), you'll want to verify it is bad (most likely is it sinse you also have a 'lean' code for Bank 1 - probably clogged). This can also cause misfires and engine stumble (low RPM) that's probably where the 1191/1193 occurred. The final DTC, P0446 - Canister Close Valve Malfunction, could be the valve itself, or the wiring between it and the PCM. Check the connector & pins for any damage/corrosion.
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Hope this helps

Posted on Jun 14, 2009

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SOURCE: power steering in hyundai xg350 doesn't work. Put

power steering need bleeding if your reservoir was dry when you added fluid if.fluid was okay not too low.your power steering pump could be faulty.the cold weather will effect it.

Posted on Dec 13, 2009

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2 Answers

P0303 Flashing Service Engine Light when driving


P0303 ignition misfire on cylinder #3.
Possible Causes:

1.Fuel injectors, related wiring, sensors, computer issues
2. Running out of gas, or poor fuel quality
3. Evaporative emissions system (EVAP) concerns: fuel vapors leaking into engine
4. Incorrect Fuel Pressure
5. EGR system concerns: leaking EGR valve or restricted ports
6.Base engine concerns: low compression, valve train problems and timing issues
7. Ignition system concerns including, but not limited to:
Faulty spark plugs
Faulty coil or related wiring
Ignition module or related wiring issues
Ignition related sensor faults or wiring issues

You will have diagnose each element until you find root cause.
And it could be more than one element faulting out.
You

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What engine do you have? is check engine light on? You said you changed coil pack, but what about spark plugs? could be fouled by normal wear, improper application/plug gap, oil fouling (oil residue on electrode) caused by bad valve guide seals or bad piston rings or gas fouling(electrode wet with gas) caused by bad plug, wire, injector, O-2 sensor. Could be caused by a vacuum leak (hose or intake manifold/gasket) Check all vacuum hoses for cracking/chaffing, repair as needed. with engine idling spray carburetor cleaner at base of intake manifold watch for rpm increase if so there is a vacuum leak. Could be stuck open egr valve, Could be compression problem or timing chain problem. This is the best I can do with info you provided. Hope it helps.

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You have an "Engine Miss" and even after replacing spark plugs, wires, upper and lower manifold gaskets, and push rods, the Engine Miss still remains. You may want to stop and run a compression test. This test will give you a base line. If one cylinder has low compression, you won't get rid of the miss until that is fixed. Please write back with all the specific information regarding tests, all symptoms (is the engine light on and if so what are the codes?). The more tests that you perform the more you will know and will narrow down your search. All types of things will cause a miss. Take a look at the spark plugs and wires, just because they are new doesn't mean that they are not defective, also check the EGR valve, 02 sensors and exhaust back pressure, clogged filters (fuel&air), defective coil, TPS sensor, PVC valve, or timing. Please let me know if I can help you some more, good luck.

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Timing check


Ignition timing would not change with the engine temp.
I'm going to assume the check engine light is not on when the engine is running, otherwise you would have checked the computer for trouble codes. And I'm sorry you dumped so much money in parts trying to fix it before troubleshooting it first.
The two things that come to mind based on your description are low fuel pressure or a problem with the EGR valve. Did the friend check base fuel pressure with the engine cold and warmed up ?

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Code 0304&0505 skips runs better after idle


Trouble Code: P0304

Cylinder 4 Misfire Detected

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Air leak in the intake manifold, or in the EGR or PCV system.Base engine mechanical fault that affects only Cylinder 4.Fuel delivery component fault that affects only Cylinder 4 (i.e., a contaminated, dirty or sticking fuel injector).Ignition system problem (coil or plug) that affects Cylinder 4.Trouble Code: P0505

Idle Air Control, Auxiliary Air Control Valve Circuit Malfunction

Possible Causes:


IACV-AAC valve control circuit is open or shorted to ground.IACV-AAC valve control circuit is shorted to system power (B+).IACV-AAC valve is damaged or has failed.PCM is damaged or has failed.

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Will not start after it stalls untill about 5-10 minutes


spray carb cleaner on the intake manifold near cylinder 1... common problem is the intake manifold gasket leaks vacuum causing a misfire...the not starting could be due to a faulty crank sensor

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1998 silverado misfire


Check for a vaccum leak at the intake. Frankster016

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2002 hyundai xg350


if the problem start after replacing the cables and plugs then you misplaced, they go exactly to one place, but if the problem was there, i will recomend you to check for a cloged fuel filter, or have some one chek the fuel presure, because if the fuel pressure is low the you have a bad fuel pump,
also try to remember if you got fuel for a very low price because there is many gas station selling e-85 fuel and this kind of fuel is not compatible with many cars, if you fuel smeels like tekila or alcohhol with water then your fuel is contaminated and you need to drain the tank and refill it wiht well knon fuel.

May 28, 2008 | 2002 Hyundai XG350

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