|
|
2001 KIA Sephia won't start or barely idles then dies
|
|
|
| |
|
|
theelkbugler
New User
Apr 16, 2010, 8:58 AM
Post #1 of 1
(4419 views)
|
|
2001 KIA Sephia won't start or barely idles then dies
|
Sign In
|
|
One night my girlfriend parked this car in the driveway and it was running fine, the next day it wouldn't start. I pulled the spark plugs and we have spark. So I thought it was a fuel issue. I also got the engine to run on starting fluid for at least enough time that I knew she didn't throw a timing beltor some other timing issue.
Now I know a little about cars but forgive me if I'm an idiot about this next part. There is a little stem on the fuel injector rail that looks like a tire stem?? I pressed that and have gotten a lot (or what I feel is a lot) of fuel there. I have never checked it with a pressure device and I don't even know if it is used for that, bleeding air out of the fuel system or for some other purpose.
So then I thought I had some sort of sensor or vacuum issue and I noticed that the idle air control vavle was making a lot of noises. It kind of growls a little and if you tap it with the handle of a screw driver it will quiet down some. I thought maybe this thing is screwed up and I start unplugging various sensors and vacuum hoses trying to get this thing to run. Sometimes it will run for about 10 seconds and then die. Or it will idle just barely and run rough as hell. If you try to give it any throttle or hold the pedal down it kills it. But you throw a little starting fluid to it and it will run like a dream.
The check engine light is on so I buy a cheap code reader and I have codes for the idle air control valve and the throttle position sensor. I think I've found the problem. WRONG! I unplugged those which generated the codes!! I clear the codes try to start it and it fires up I think maybe it was those sensors but it ran for a few seconds and started all over again. No trouble codes were generated. Now I have no error codes and a car that won't run. I thought it was that Idle Air Control Valve and now it could be a fuel filter or fuel pump??
Questions:
1. If the Idle Air Control Valve or the Throttle Position Sensor was shot would it generate and error code in the 5 seconds this car stays running?
2. I hear another sound when I turn the key on besides the IACV. It is coming from underneath somewhere I'm not sure where. Is this the fuel pump I hear?
3. When I go to the back of the car and listen I can't hear it. It sounds like it is coming from up front. What could this be?
4. If there is fuel in the injector rail does that mean that it isn't a filter or pump issue?
5. how long after you turn the key on should there be fuel at the injector rail?
6. Because of a sensor issue could the ECM be telling the injectors not to inject fuel?
7. If I'm not mistaken isn't there something called a fuel pressure regulator on this car?
8. If so could this device be responsible for the mystery noise?
Thanks for all of your help and sorry this was so long!! I just wanted to make sure there was enough information.
(removed 5 hyperlinks! Please don't just copy/paste from other car sites)
(This post was edited by Tom Greenleaf on Apr 16, 2010, 9:18 AM)
|
|
| |
|
| | |
|
Auto Repair Home
SEARCH
WHO'S 
LOG 