car runs rough

4gethonda · Post by **4gethonda** » August 14th, 2007, 9:15 am

alright well im new to these boards im usually on probetalk.com but anyways my friends recently bought a 1995 mx-3 5speed. the guy said the car was sitting since octobor. well we have some problems with it when you give it gas somtimes it will die and somtimes it wont, but it will always run rough when you start to give it gas to go. i was thinking that mayb becasue its been sitting the gas is old so i was goign to burn all of the gas and change the fuel filter and put a fresh tank of gas in with a new fuel filter. could this be my problem? can anyone help?

SuperK · Post by **SuperK** » August 14th, 2007, 9:36 am

my '85 pickup sat in the yard for 8 YEARS, then my dad gave it to me to drive.
All it needed was a new battery and air in the tires.
It cranked right up.

I doubt the fuel LINE has varnished fuel or such in it to cause it to idle rough.
Time really doesn't clog filters, either.

It sounds more like the fuel switch/relay, or the fuel pump itself causing it to do such.

Throw some injector cleaner and try to run it hot, see if you can burn out any possible residue. Make sure to change the oil if it's sat that long unattended, though.

4gethonda · Post by **4gethonda** » August 14th, 2007, 9:54 am

yea we did change the oil and filter the other day but it seems it burns oil if you drive the car hard. what kind of injector cleaner should i use? how much is a new fuel pump and isnt it hard to do

4gethonda · Post by **4gethonda** » August 14th, 2007, 2:16 pm

so thats the only help i can get?

is ther a way to check the fuel pump?

Tunes67 · Post by **Tunes67** » August 14th, 2007, 3:44 pm

I'll also add that rough idle is most often caused by vacuum leaks. If you have the stock flex tube from the air box to the throttle body.. check it for cracks in between the flexible ribs.

One other thing of note. Your issue has been covered a billion times.. if you use the search function.. you will be able to check how other people resolved their similar issue(s). This is probably part of the reason that few people have responded. That and seriously.. do you really think we all sit here in front of our computers waiting to help you?

:lol: Research is a beautiful thing

Tunes67

4gethonda · Post by **4gethonda** » August 14th, 2007, 6:04 pm

look can you please help me idk what i would put in into the search function please jue help me out here and at least post the links to the thread that solves teh problem this is my GF basically dream car and i jstu want it to work for her

4gethonda · Post by **4gethonda** » August 14th, 2007, 6:09 pm

i dont even see the search box

umcamara · Post by **umcamara** » August 14th, 2007, 6:25 pm

There's a search button at the top of EVERY page in this forum, you can't get away from it.

As Tunes said, most common cause is vacuum leak. I had this issue a couple months ago. I knew that my air intake hose was cracked, so I taped it up with some electrical tape. Well, after about five minutes of driving, the intake air had ripped the hose apart. As this air enters the throttle body through a tiny crack, or in my case, a huge rip, it bypasses the MAF (Mass Airflow Sensor). This causes the ecu to believe there is no air going to the engine.

When my intake hose was cracked, the car ran REALLY rough, and I had a hard time keeping it running to get to the auto-wrecker.

4gethonda · Post by **4gethonda** » August 14th, 2007, 11:45 pm

alright well i found it but idk what to type in can somone please help me, also how do you check the fuel pump to make sure its ok? and do you absolutly have to drop the tank to get to it?

ill look more at the intake tomrrow but can somone please jeu help me out and give me anwsers not jsut tell me to search

PLEASE

shameem · Post by **shameem** » August 15th, 2007, 12:51 am

First siphon off the old gas (if theres any left) - gas additives separate and congeal when its left for a while - if you try to burn it off it might gum up a lot of stuff.

For the next few fillups, add fuel system treatment (with injector cleaner stuff & probably water remover stuff too).

Change fuel filter (there are two - one in the engine bay, one in the fuel tank).

Check for vacuum leaks around the intake tube - spray wd-40 or carb cleaner around the intake tube while the engineis idling - if the odle changes when you spray there is a leak near that spot.

Check/clean all the ground points and add more ground wires. Clean battery terminals too.

Check alternator - if you can take it out some parts store will check it for free.

And most importantly - search the forum - i spent 2 weeks reading up the forum before posting - believe me there are 1000s of posts just dealing with your same issue - if you put idle problems or idle issues or something like that in the search box you will see what i mean. Make sure you select "search for all words" before doing search.

4gethonda · Post by **4gethonda** » August 15th, 2007, 1:01 am

butt see the idle isnt all that bad thats not really my problem its that when i give it gas it wants to die and somtimes it will...its like you have to give it gas very slowly and then it will go fine

umcamara · Post by **umcamara** » August 15th, 2007, 2:38 am

Not to be rude, but what else do you want us to do. Do you want us to come over and do the work for you? We have told you everything that you need to do, and you don't really acknowledge it.

Do yourself a favour, and "HELP US HELP YOU."

4gethonda · Post by **4gethonda** » August 15th, 2007, 8:28 am

Tunes67 wrote:Your issue has been covered a billion times.. if you use the search function.. you will be able to check how other people resolved their similar issue(s). This is probably part of the reason that few people have responded.
Tunes67

hes basically telling me he knows he jsut want tell me what, look idk how to use the search function what am i supose to put in it? its a rough idle sorta, but thats not even the problem the car wants to die when you give it gas, and i put that in the search function and come up with nothing

i dont understand why they even have these forums if all your goign to tell me is search for it

wtf is the point of mx-3.com or probetalk.com or mazdaforum.com if you dont help and jsut tell me to search wtf thats why i cam here

Tunes67 · Post by **Tunes67** » August 15th, 2007, 10:44 am

You copy and quote me saying search.. but you dont even acknowledge the other information I gave you. Nor did you acknowledge anyone else. I told you what to look for right here

I'll also add that rough idle is most often caused by vacuum leaks. If you have the stock flex tube from the air box to the throttle body.. check it for cracks in between the flexible ribs.

Thats it. I am not holding your hand any more.. if thats what you want.. move to San Francisco.. plenty of dudes there that will hold your hand. At this point I have come to the conclusion that you are either a troll or a retard. Sorry if thats too blunt for you.. but your just here whining rather than trying to learn. If your not a troll or a retard.. your going to have a hard life if you really expect people to do everything for you. Funny thing is.. all you will do is whine about how I called you names rather than get off your arse and go out and work on the car or spend some time researching your issue. Best of luck.. your gonna need it from the look of things.

Tunes67

SuperK · Post by **SuperK** » August 15th, 2007, 11:11 am

Search for Keywords:
You can use AND to define words which must be in the results, OR to define words which may be in the result and NOT to define words which should not be in the result. Use * as a wildcard for partial matches

Oh good lord, look, I just typed in "hesitation AND throttle" and I got a CRAPLOAD of matches.

Oh good lord again, ALL you told us is "the car wants to die"
there are 24x10^56th Reasons why a CAR wants to DIE on idle!
Do you even give any insight as to what the condition of the car is?
LET me give you an example of how to properly ASK FOR HELP.

-------------------------------------------------------------

Subject: Large Hesitation on throttle

We've just got a '95 MX-3. It's been setting for a while, since october.
It has XXX,XXX miles on the original engine, "B6 DOHC" and since we've got it, we've given it a complete tune up.
Work to date:
Changed oil/spark plugs
tested catalytic converter
made love in the back seat
checked for vacuum leaks
flushed the coolant
tested the O2 sensor.
Run injector cleaner, flushed the fuel out of the system
PULLED THE ECU CODES
PULLED THE CODES
PULL THE DAMN CODES

The car also burns oil, probably 1 quart every XXX miles, It does/doesn't smoke on idle, but I don't know if that's related

the ECU is/isn't flashing ## code, which means blah blah blah. I've looked into that issue, but I don't know exactly what I should be

The car idles kinda rough, and the RPMS bounce between X K and X.X K

I'm not sure what other measures I should take now. Anyone else have any ideas?

--------------------------------------------------------------------------------

YAY, now this is what we all heard you say:

HI LOL BOUGHT CAR DONT KNOW WHAT WRONG CAR WANTS TO DIE LOL K THX

>>> WTF HELP ME LOL DUMB RETARDS WHATS THE POINT IN COMING HERE IF YOU DONT FLY OVER AND FIX MY PROBLEMS ALL YOU HERE SUCK LOL I DONT SEE WHY I COME HERE IN THE FIRST PLACE BUT I AM STILL GOING TO COME HERE AND CRY HELP ME AND FIX MY PROBLEM NOW!!!

Have you thought that POSSIBLY there is proper etiquette in socially conversing on a online forum? That if you come in here sounding like a idiot, looking like an idiot and acting like an idiot, we're not going to treat you like one?

There are YEARS of information on this forum that can assist you with your problem. It's ALL documented here on the forum. We've already helped you the moment you've set your browser on this website, but instead of looking for it yourself, you come demand we find it all for you.

Why do you think we're all sour pusses about this whole thread?
What are you, 15? Grow up! I'm glad your girlfriend's car ended up a MX-3, and I'm glad it's her dream car, I hope she gets it running... but if this is how you treat her I hope she finds someone else REAL quickly.

By the way, proper forum etiquette requires you to apologize to the forum right about now. In fact, we might do the same thing back.