Question about 2001 Hyundai Accent

Open Question

Why does the car stall? Codes came up P0301,P0302,P0303,P0304,P1123,P0300,P0108. .Replaced plugs last week throttle sensor and new fuel pump.

The car started doing this when the new fuel pump installed. I need emission testing badly

Posted by on

Ad

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
  • 51 Answers

SOURCE: start and diesss

p0456: evap system. sensor failure
p0172: evap system. intake blocked
p0778: exaust valve control. solenoid/ecu faukt
p0300: cylinders misfire. check ht/ignition leads
p0301,303,304,305,306: same ht leads

hope this helps..

Posted on Apr 27, 2009

Ad
TDISLine
  • 1874 Answers

SOURCE: 2007 Tucson, has poor idle

When diagnosing the Continuously Variable Valve Timing (CVVT) system for rough

idling, poor acceleration, camshaft timing misalignment-related trouble codes, misfire related

trouble codes, and/or other related symptoms, it may be required to inspect the
Oil Control Valve (OCV) for proper operation.

Diagnostic Trouble Codes (DTC):
P0016 = Crankshaft position-Camshaft position correlation (Bank1 Sensor A)
P0300 = Random / Multiple cylinder misfire detected

Follow the procedure to inspect the OCV. If the OCV operates normally, then carry out other necessary repairs. Do not replace the OCV if normal operation is confirmed.

INSPECTION FLOW DIAGRAM:

tdisline_2.jpg

OCV COIL RESISTANCE SPECIFICATION:

OCV SUPPLIER : COIL RESISTANCE AT 68°F (20°C)

Denso 6.9~7.9 Ohms
Delphi 6.7~7.7 Ohms

OCV INSPECTION PROCEDURE:
1. Measure the resistance between the OCV Power and Signal terminals.

tdisline_3.jpg

MEASURED RESISTANCE 68°F (20°C). RECOMMENDED ACTION

1.1. Denso (6.9~7.9 Ohms)

1.2. Delphi (6.7~7.7 Ohms)

Check if the OCV operates normally by providing 12V power. (See the STEP 2.)

1.2. Infinity (OPEN): Open circuit - Replace the OCV.
1.3. Below specified range or zero: Short circuit - Replace the OCV.

2. Check if the OCV operates normally by providing 12V power as shown in the picture
below.

tdisline_4.jpg

IMPORTANT: Careful attention is necessary to avoid a short circuit when providing the OCV with 12V power. Spacing between the OCV power and signal terminals is very narrow. Use suitable connections to prevent shorting of the test power supply.


3. When 12V power is provided to the OCV, the OCV must move forward as shown in the picture below.


A: Maximum retarded valve timing condition (12V not provided)

B: Maximum advanced valve timing condition (12V provided)


NOTE: Reverse the connection polarity if the movement is opposite.


tdisline_5.jpg

4. If the OCV does not move forward, examine if a foreign object like an aluminum chip (C) is jammed inside the OCV.


• Blow out the foreign object using compressed air, reinstall the OCV and then verify that the fault is corrected.

• If there is no damage to the OCV, then do not replace the OCV.


tdisline_6.jpg


Posted on Nov 10, 2010

ZJLimited
  • 17970 Answers

SOURCE: 2005 Hyundai Tucson 2.0L During start-up

A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A P0302 code, for example, would tell you cylinder number two is misfiring. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.

For example, a P0302 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #2; same condition in P0301 - cyl #1, P0303 - cyl #3 and P0304 - cyl #4.

A code P0300 (or 301, 302, 303 or 304) may mean that one or more of the following has happened:
Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked EGR valve / passages
Faulty camshaft position sensor
Defective computer

About your possible solutions, if there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

Random misfires that jump around from one cylinder to another (read: P030x codes) also will set a P0300 code. The underlying cause is often a lean fuel condition, which may be due to a vacuum leak in the intake manifold or unmetered air getting past the airflow sensor, or an EGR valve that is stuck open.



So, your code P0170 is one that surfaces with certain makes of automobiles more than others. In writing this article I've added Mercedes-Benz-specific info since it seems that M-B (and VW) are most prone to having this P0170 surface along with misfire codes or other fuel trim codes. P0170 means there was a malfunction in the computer's control of the air:fuel ratio.

It also indicates that the fuel trims reached their limit of adding fuel while trying to compensate for a actual or perceived rich condition. When the fuel trims reach their rich correction limit, the PCM (Powertrain Control Module) sets a P0170, indicating a problem or malfunction in the fuel trims. It may also have a P0173 referring to the same malfunction but on bank two.

Potential causes include a vacuum leak, unmetered air leaks Fuel saturated engine oil Leak in turbo air charge hoses (if equipped) Possibly bad O2 sensor (If Mercedes, may require adaptation with M-Benz compatible scan tool.) Oil contamination in MAF connector or O2 sensor connectors. Also check ignition coils, cam and crank sensors, and oil sensor for leakage contributing to oil intrusion in wiring harness. Defective MAF (Mass Air Flow) sensor (especially on Mercedez-Benz and other European autos. There are a lot of problems with aftermarket MAF sensors).

If you have this code and access to a scan tool, observe the MAF sensor reading in grams/sec. The reading will be different for different automobiles, so get a good spec. I'm going to stick with what would be normal for a Mercedes (1.8L), since they have the bulk of the trouble. Expect to see at idle 3.5-5 g/s (ideally). At 2500 RPMs with no load it should be between 9 and 12 g/s. On road test, at WOT (wide open throttle) it should be 90 g/s or well above. If it's not in specs, replace it. Be careful of Ebay MAFs. Often they don't work according to OE specifications. If the MAF checks out and there is no oil intrusion at the connector, check fuel pressure and ensure that there are no leaks at the regulator internally or externally. Check all vacuum hoses and confirm none are cracked, disconnected or missing. Make sure there are no vacuum leaks at the intake manifold gaskets or tears in the air supply hose. If the engine is turbo charged, be sure the hoses are in good condition and have no leaks. Leaking turbo pressure hoses could cause a rich condition. Inspect the condition of crankcase vent hose under intake manifold and operation of check valve in the hose. (In the "What are the causes?" section) If there doesn't appear to be any problems with the fuel pressure, MAF or vacuum hoses, then inspect the O2 sensor connectors for oil intrusion. A bad O2 sensor could cause a P0170, or P0173. Repair cause of oil leak and replace oil-fouled O2 sensor.

This is location diagram...

zjlimited_487.gif

Bank 1 is always the side of the engine with cylinder #1.
Bank 2 is always the side of the engine with cylinder #2.

Bank 1 is the bank of cylinders on the firewall side.
Bank 2 is the bank of cylinders on the radiator side.

Sensor 1 is the O2 sensor before the cat.
Sensor 2 is the O2 sensor after the cat.

So the one you want is the sensor AFTER the cat on the FIREWALL side of the engine.

Hope this helps.

Posted on Jul 13, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Why does my 2001 Hyundai accent stall? Auto Zone ran a check and these are the numbers they came up with P0108,P0300,P1123,P0304,P0303, P0302, P0301 They say AIC does not come up as bad. What do I do?


that autozone sales person should have asked when is the last time it had a tune up... ie, spark plugs etc...

reset the ecu/ecm and clear the codes... see if the same codes come back to verify

look for vacuum leaks first if you already done a tune up by changing those worn spark plugs, etc
P1123 Hyundai Long Term Fuel Trim Error System Rich

P0108 MAP Pressure Circuit High Input

and the 0300's have something to do with your ignition components; i'll let you google those since i googled the first 2 for you

Mar 28, 2015 | 2001 Hyundai Accent

1 Answer

2009 sienna setting c.e.l. light multiple missfire codes


Change...distributor cap ..spark plug wires or spark plugs

Jul 30, 2012 | 2009 Toyota Sienna

2 Answers

P0300 P0301 P0302 P0303 P0304


Have you had somebody clear the codes after you installed the parts.If not the codes have to be erased by using a scan tool.

May 05, 2012 | 1998 Dodge Neon

1 Answer

Codes:p1346/p1349/p1354/p0446/p0300/p0301/p0303/p0305/p0307/ p0430/car runs rough when idling/lexus gs 400 1998


P0301 Cylinder No. 1 Misfire Detected
P0302 Cylinder No. 2 Misfire Detected
P0303 Cylinder No. 3 Misfire Detected
P0304 Cylinder No. 4 Misfire Detected
P0305 Cylinder No. 5 Misfire Detected
P0306 Cylinder No. 6 Misfire Detected
P1346 Variable Valve Timing (VVT) Circuit Range/Performance Fault
P1349 Variable Valve Timing (VVT) System Malfunction
P0330 Knock Sensor
P0446 EVAP Vent Control Fault
P0430 Catalyst System

Stop driving immediately.....

You defiantly skipped on your timing........

Feb 14, 2011 | 1998 Lexus Gs 400

2 Answers

P0302,P0303,P0304;P0300 and P1399 found by the code reader on my honda CRV 2001 model.what those are means?


From www.hondasuv.com:

 

The P1399 random misfire along with one or more of these codes: P0301, P0302, P0303, P0304 -- indicates a problem with the valves. The B20 engines in the 1997-2001 CR-Vs are known to have problems with valves tightening and then 'burning'.

So the first question is when was the last time you adjusted the valves? If you don't know or never have, then have them adjusted. Soon...

Jan 04, 2011 | 2001 Honda CR-V

1 Answer

1998 4runner v6. Last year I replaced #1 fuel injector, new plugs & wires. Now I am getting check engine light. Autozone read codes as follows: P0300, P0301, P0303, and P0304. I cleaned the...


The MAF sensor is not the problem, these are cylinder misfires on #1,3 and 4. replace the #4 coil pack, #1 AND 4 use the same coil, replace the spark plugs and the wires.

Aug 24, 2017 | 1998 Toyota 4Runner

1 Answer

MIL LIGHT


change the air
flow meter

May 28, 2009 | 2002 Volkswagen Golf

Not finding what you are looking for?
2001 Hyundai Accent Logo

Related Topics:

712 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts

yadayada
yadayada

Level 3 Expert

80339 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8841 Answers

Are you a Hyundai Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...