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Hyundai dtc codes

I hafe p1128 and p1805 code,what i sell do?

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P1128 is a check engine issue and P1805 in an immobilizer. The easiest way is to go to a local garage and have the computer reset (clear the codes). The immobilizer is most likely bringing up the engine code. There was probably a miscommunication between the immobilizer and the computer causing the code which then in turn "check engine". Start there...

Posted on Jul 25, 2013

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Go to www.automecanico.com + www.autoelectronico.com translate with your browser and get the topic and fix it.
God bless you

Posted on Jul 25, 2013

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techprogrami
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SOURCE: what does code number P1128 mean when light is on

P1128 - Long Term Fuel Trim Multiplicative System Too Lean.
The ECM will set a code and the MIL will turn on if the long-term fuel trim value goes from 10% to 15% lean for 30 seconds during two driving cycles when the following conditions are met:
1.- Engine loads exceeds 1.8 milliseconds.
2.- Engine coolant temp. is above 158F (70C).
3.- Canister purge system is not operating.
4.- Mass air flow is less than or equal to 5.5grams per second.
5.- Engine speed is below 1000RPM.

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Posted on May 28, 2009

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SOURCE: trouble code 1997 Hyundai Elantra, P1128

P1128 trouble code is for (Upstream Heated O2 Sensors Swapped). Did you switch around any of the O2 sensors?

Posted on Apr 24, 2010

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1 Answer

Engin management light stays on


Are You sure those code are correct?

Jan 25, 2014 | 2002 Hyundai Accent

1 Answer

Hyundai error code p1128 lean fuel mixture


Hi there:
DTC P1128 is "Long Term Fuel Trim Too Lean"
This means the air/fuel mixture is leaner than the HO2S can compensate for.


This is most often caused by a vacuum leak. It can also be caused by a clogged fuel filter, unmetered air entering the air intake system, leaking exhaust system, canister purge system not operating or a weak fuel pump.


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Aug 10, 2012 | 2007 Hyundai Accent GS Hatchback

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

I go ta obd11 code of p1128 I can't find it I have a 1999 Elantra my car acting like it want to crank but won't I have to sit and it will eventually crank


you are having trouble with you MAF, mass air flow sensor. It may be dirty. It is fragile so use the correct cleaner made just for mass air flow sensors. Check the electrical connection for corrosion and tightness.

http://www.hyundai-forums.com/t3498-3900-accent-p1128-dtc.htm

Jan 20, 2011 | Hyundai Elantra Cars & Trucks

1 Answer

Trouble code 1997 Hyundai Elantra, P1128


P1128 trouble code is for (Upstream Heated O2 Sensors Swapped). Did you switch around any of the O2 sensors?

Apr 24, 2010 | 1997 Hyundai Elantra

1 Answer

My hyundai accent 2000 has 25,000 miles and the the check engine light has been on for over 3 months. I know the diagnostic code is P1128. I have had the car to 2 mechanics and they can not say...


P1128 is a lean condition, try cleaning the Mass Air Flow (MAF) sensor. You can buy a can of MAF cleaner at most auto parts store like Auto Zone, and they will have the instructions for you to remove the MAF. Try cleaning it first and then disconnect the battery, just make sure the radio is off first before you disconnect the battery. If the DTC 1128 is still there, the MAF may be bad and needs to be replaced but before you replace the MAF. Check with the Hyundai dealer for any TSB on that code. Good luck and keep me posted. The dealer want $270.00 for the MAF sensor!! ouch!! scouted around...NAPA has them for $105.00. Most local salvage yard for $35.00 - $75.00

Dec 01, 2009 | 2000 Hyundai Accent

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