hello all i got a bit of a problem and dont know where to check as you all remember i changed my fuel filter a couple weeks ago. Now my gas milage is still bad it does about 200 miles on fill horrible. Now my car is making a noise like when the injectors are clogged. Its mostly happens when i come to a stop from light to light and some times when im on the highway it will bogg for a sec then keep going any ideas thanks in advance !!! (IMG:style_emoticons/default/liebe011.gif)

sounds like you could have a problem with the air flow meter (this would not normally trigger the CEL)

as to your other point, try re-setting the ECU. dis-connect the negative terminal from the battery, pump the brake pedel a dozen times to get out all remaining power from the system, re-connect the battery and drive gently for half an hour on clear roads so that the ECU can adapt to new driving conditions

well at first no cel now it came on and the car is bubble vibrating at idel the codes are as follows
p0102 maf or vaf circut low input and i just changed the maf like 8 months ago.
p1191 nad p1193 manufacture control fuel air meter, but the hyundai codes is different.
i saw something on hma ,but i dont know what components to check.
any ideas on what i should do i really dont have the money to go to the dealer





This post has been edited by thafinestxg300: Oct 30 2009, 10:03 AM

my bad mont I havent tried that I just woke up im going to try that now but i cleared the cel code and it came right back on jus to everyone know. Thank you guys

ok well reset the ecu twice still acting up now i unplugged the maf and pluged it back in no changed in rpm so i think thats it but hyundai says that theres no warrenty cause it more than a year. WTF **** hyundai **** talker my maf has been on the car for 8 years b fore it messed up and i buy a new 1 and in a year it gone ????? (IMG:style_emoticons/default/whistling.gif)

you may have been just unlucky, can't you find a second-hand one at a scrap yard?

Ill have to check? But u think its the maf? I kindo seeing as when i unplug it nothing changes in the engine and u can smell the exhuast more. Now it 813pm where i am i just read the codes again and it s the same one p0102 p1191 and p1193 could the maf set theses off and make the car idel rough and more of a gassy smell out the rear?
once again mont thank u very much hope to hear back from u soon



This post has been edited by thafinestxg300: Oct 30 2009, 07:16 PM

wow look what i found I need help my mother misplaced my hyundai book that a friend gave me
this is the difinition from the Hyundai manual

P1191 ETS Limp Home Valve On
P1193 ETS Limp Home - Low Rpm
You have a problem with the throttle sensor.

what do i do now my rpm will shift really low when the ac is on and i tap the throttle and ull hear a hiss coming from the intake and the rpms will spike up and down while driving and kinda bobble around. What Do I DO i do have money for another maf but i need to be sure or do I check elsewhere

This post has been edited by thafinestxg300: Oct 30 2009, 09:01 PM

sounds like you are having issues with more than one thing. Like montego mentioned, you may have ETS(TPS) problems aside from MAF problems. What type of code reader are you using. Does it give live data readings for the MAF for example mine gives g/s for the MAF. Try resetting your ETS/TPS by turning the key on and off within 1 second and wait 15 seconds till your hear something click. See if that helps. Unfortunatly the XG is what I believe to be the first problem car since the Excel with it's ETS,EGR and Variable induction intake system. Not that the new mini vans are any better with all them **** modules. But I love my XG.

ok ill try that but if not what should I do to test and see what is wrong. As per the coder it the the one from autozone a cheap little one please help thanks again u guys

Hi thafinestxg300

Just wanted to ask if you got your problem fixed or not. I am having the same problem, ( Rough idle, low rpm with A/C on, engine bubbling etc)

I had the same code P1191 and P1193. Changed the throttle sensor with brand new but problem still there.

Could you please update us how did you get your problem fixed? What you had to change etc.

Thanks

it's hard to figure out what causes this even with a mechanic leaning over your engine bay. It seems that with the XG, everyting can cause this. Most all the sensors work together and if one fails it will make other sensors seem as if they are the ones causing the problems. Someone should make a "Sticky" thread for these concerns as their are tons of them and and even though it's sounds strange, I believe they are all cause by the same faulty part in most cases. So who wants to start a sticky thread, I can help.

Hello mac1

Its true what you wrote in your post above. I am totally agree with you. For this thread, we sure need help from all senior members, Admin and their experiences.I am willing to help.
I found many thread starting with this problem but they are all half way around and no solution for Code P1191 and P1193. It gets very expensive to changing the parts and sensors without actually knowing which is actually making problem.

Dear Montego what you say how can we proceed for this to save us time, money and conclude this exact problem?

Thanks

Sheraz

This post has been edited by sheraz: Nov 15 2009, 01:02 PM

if you want to start a sticky that's fine......if you need any help just ask (l have also had the same problem in the past with one of mine but it somehow cured itself after a while and l did not ever find the exact cause)

OK ALL LISTEN TO THIS. IT WAS THE MAF FOR 1193 AND 91 CODE MY FRIEND THATS GOING TO ATI TESTED IN THE WEIRDEST WAY HE TAPPED THE **** SENSOR (IMG:style_emoticons/default/w00t.gif) AND THE CAR WENT NUTS AND CONTINUED RUNNING RICH. NOW FROM MY EXPERIENCE AND MONT. YOU WHERE CORRECT ABOUT THE MAF JUST A NOTE THE MAF MAKES DUMB THINGS ACT UP IN THE CAR. OK SO NOW WE ARE RUNNING BUT I STILL GOT A FEW PROBLEMS BESIDE THE FACT I HAD A BLOW OUT ON THE CAR SO I HAVE'NT BEEN ON. SO THEY ARE ITS STILL WHEN IM RACING OR DRIVING HARD AND COME TO A STOP THE CAR WILL MOST OF THE TIME EITHER WHEN I STOP RPMS WILL DROP LOW U FEEL THE JERKING OR JUST DROP AND TURN OF BUT STARTS RIGHT BACK UP. GAS IS STILL 220 MILES ON A FILL UP AND UNDER ACCEL. LOW RMPS OR HIGH SPEEDS WITH A LIGHT UP AND DOWN ROAD YOU WILL FEEL A VIBRATION AROUND THE CAR AND STEERING WILL SHAKE ANY IDEAS AND I HOPE I WAS A LITTLE HELPFULL.
ok new up date the car as far as bogging now it will do it when shitftin or sudden stop it bogg drop rmp and like i said sometime turn off. as we ll when i am crusing i get a bad vibration when it under load and lighter when off the gas but it is a shake ans as well when u go from a light the wheel moves back and forth
THANKS FOR UR HELP


BUT WOW TAPPING THE SENSOR HMMM

This post has been edited by thafinestxg300: Nov 20 2009, 10:37 AM

For the same problem I found out the following today after long research on my XG's electric system,

mine MAF is good. I change with the new one but same problem.

for further investigation of electric connection

I check the ground (-) coming to my MAF sensor with the ground of Battery (-), results are,

Resistance 10. Ohms
Volts 2.2 mvolts

Normal must be,

Resistance must be less than 1 ohm
no voltage (because both are negative poles )

Every sensor of ETS have the same resistance around 10 Ohms and some very miner voltage. It becomes only normal as it should be when I take the main power fuse out. which means resistance less than 1. Ohm and no + voltage on chassis.

When ETS relay is active for the initilizing of ETS, this voltage and Resistance become double at negative wire of MAF and ETS sensor, position and motor.

I have taken all connector off around the engine to check if there is a short wire or any of these are causing this but nothing found.

I think some relay or ETS module are sending some very miner voltage to negative pole of electric system of car.

Any one have any idea what should I check or any clue what can be wrong?
Any body can tell where ETS relay is?

My opinion ETS Relay malfunction.

Any suggestions and opinions are appriciated.

Thanks

This post has been edited by sheraz: Nov 23 2009, 12:53 PM

For this I have found one short circuit problem make all sensors working improperly. you can check details here,

http://www.hyundai-forums.com/index.php?sh...mp;#entry281439

Sheraz