Question about Hyundai Motor 2003 Sonata

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2003 Hyundai Sonata will not idle

Just Bought , Got The Problem With It , No Matter What I Try It Will No Idle Correctly , Tried TPS Sensor, Air Idle Control Valve, EGR, Vacuum Hoses , Plugs, Clean The Throttle Body, & On & On , Runs Great On The road

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  • Contributor
  • 18 Answers

Check your spark plugs and distributor.

Posted on Jul 17, 2013

6 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

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Posted on Jan 02, 2017

  • 67 Answers

SOURCE: 2004 6 cyl sonata idles high and stays there after

check for vacum leak

Posted on Mar 07, 2009

ghost45
  • 1280 Answers

SOURCE: Replacing Idle Air Control Valve on '00 Sonata

No such code: P1520

Posted on Sep 23, 2009

ghost45
  • 1280 Answers

SOURCE: 2001 sonota idle control valve

1. There is NO SCREEN.
2. Did the 'Check Engine' Light come ON? Whenever the 'CHECK ENGINE' light comes on, the ECU (Engine Control Unit) sets a Diagnostic Trouble Code (DTC). These codes identify the particular engine management system which caused the light to come on.
You'll need to use/find an OBDII (On-Board Diagnostic) Scanner to retrieve any code which have been stored in the ECU computer. Afterward, we might be able to help you DIAGNOSE the problem and perhaps eventually fix the problem.

Posted on Oct 04, 2009

  • 3911 Answers

SOURCE: i have a 2002 hyundai

Vacuum lines do not get plugged up. They get hard and brittle with age, that causes them to leak through the cracks and at the ends. So if your lines are 10 years old and have a 100k on them, replace them. Most are just two ID sizes, and you can buy it by the yard at parts stores. Replace them one at a time to avoid the common screw up of putting them on wrong. Does not hurt to use the cell phone camera to take "before" pictures just in case. That is the cheap way to eliminate one possible problem. After that replace the dealer suggested parts one at a time starting with the cheapest first. Most of those parts can be had at parts stores way cheaper than at dealer.

Posted on Aug 25, 2011

  • 52 Answers

SOURCE: vehicle revs up and down on its own. Replaced the throttle position sensor, map sensor, idle air control valve and the purge valve

You may have a vacuum leak or a hose that came loose.

Posted on Dec 17, 2011

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2001 chevy malibu idles anywhere from 1500-2500 rpm then sputters and dies while driving.


I'LL TRY, GOOD TO SEE SOMEONE TRY AT LEAST ! IDLE SEEMS HIGH, BACK TO BASICS !!!!!! THE AIR & FUEL FILTERS NEED REPLACED, SPARK PLUG WIRES, YOU FORGOT THEM !!! DISTRIBUTOR CAP & ROTOR, YOU FORGOT THEM !!! THESE ARE AS IMPORTANT AS THE AIR WE BREATHE !!!!! VACUUM LEAKS, CHECK ALL VACUMM LINES, THOROUGHLY ! THIS LINE COMING OUT OF THE TRANSAXLE PORTION OF THE INTAKE MANIFOLD ?????????????????/ YOUR NEED TO REPLACE WHATEVER IT IS, WHAT KIND OF LINE ? METAL, RUBBER , WIRE ??? MOVING ON, GOOD YOU REPLACED THE OXYGEN SENSOR, & IDLE AIR VALVE, & TPS, RECHECK TPS, IS IT LOOSE, ALSO TIGHTEN THROTTLEBODY BOLTS, THE ONES THAT HOLD IT DOWN. SO, CHANGE YOUR FILTERS,WIRES, ETC., MENTIONED ABOVE, CAP & ROTOR, ETC.,ETC.,.........GO FROM THERE, SEE HOW THAT WORKS

Mar 24, 2013 | 2003 Chevrolet Malibu

1 Answer

How to fix.... rough idle and stalling on 2006 Hyundai Sonata LPG


had the same problem with my mercury and found out it was a camshaft sensor

Aug 08, 2012 | 2006 Hyundai Sonata

1 Answer

1999 hyundai sonata cuts out after 5 miles of driving, we have wait about an hour and it will restart. We have replaced the fuel pump and still the same problem. we were told there was a fuel pump sensor,...


To me this sounds more like a IAC (Idle Air Control Valve) or your MAF (Mass Air Flow Sensor) is bad and not reading correctly. The fuel pump sensor is an actual relay that you saw, its goes into the fuses. Not really sure what someone told you that it was, due to the fact that you do not have a sensor. Do you have any check engine lights on?

Oct 20, 2011 | 1999 Hyundai Sonata

1 Answer

Code p1128 weak mixture lose power on inclines engine light on melts spark plugs vehicle hyundia accent 2001


Go to www.hmaservice.com and register your vehicle by VIN #..
you'll then have access to wiring diagrams, shop manuals,
service bulletins, illustrations, etc. To diagnose a 2000 or 2001 1.5L Accent Diagnostic Trouble Code (DTC) P1128 (FUEL SYSTEM LEAN -- PART LOAD), check the following:
  • Check the intake system for air leaks.
  • Check that the Mass Air Flow (MAF) Sensor (P/N 28164-22610) operation meets the specifications listed below. If the MAF sensor output is significantly lower than the reference value (10% or more), then replace the MAF sensor.
Table 1: Using the Hi-Scan Pro in the Hyundai Diagnostic Menus Current Data Screen TPS (%) 0
3.5
5.1
7.4
MAF (kg/h) 10
21
30
47
RPM IDLE
2000
3000
4000
Table 2: Using the Hi-Scan Pro in the OBD-II Menus Current Data Screen TPS (%) 0
3.5
5.1
7.4
MAF (g/h) 2.8
6
8.5
12.7
RPM IDLE
2000
3000
4000


WITH MANUAL TRANSMISSION


Table 3: Using the Hi-Scan Pro in the Hyundai Diagnostic Menus Current Data Screen TPS (%) 0
2.4
3.9
5.9
MAF (kg/h) 9.5
19.4
28.8
43
RPM IDLE
2000
3000
4000
Table 4: Using the Hi-Scan Pro in the OBD-II Menus Current Data Screen TPS (%) 0
2.4
3.9
5.9
MAF (g/h) 2.5
5.5
8
12
RPM IDLE
2000
3000
4000

Jun 26, 2011 | Hyundai Accent Cars & Trucks

1 Answer

Revs upto 4000 rpm in idle and while driving too ! all by itslef.


mcdevito75 here, Sounds like the idle speed motor or the idle speed sensor is no good. Your local shop can check this out for you.

Jun 17, 2010 | Hyundai Motor 2002 Sonata

2 Answers

Hyundai Sonata 2002 idle at high RPM and accelerate 40-45 MPH


Look for a vacuum leak somewhere. This is the most common problem for a high idle.

Jun 23, 2009 | 2001 Hyundai Accent

1 Answer

Sparatic idle only on cold idle


It sounds to me your TPS (throttle positioning sensor) is in need of replacement. This is located on the throttle body.

Jun 01, 2009 | 2003 Hyundai Tiburon

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