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2004 Kia Optima Questions

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127
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power have been connect back still do not work door locks

where is the ecm located on 2004 kia optima

2004 Kia Optima. I have changed feul pump only you find out later the old one was still working. I have changed feul pump relay. When you turn the key it cranks, but won't turn over. We are getting power to the pigtail for the gas gauge. But the same pigtail we aren't getting power for the feul pump. On the data link, we bypassed everything and the feul pump came on. So now we are thinking it has something to do with the ignition switch/cylinder? Does anyone have any idea how to fix this? I can't keep buying parts just to find out the part I took off still works.

My car will crank but not start I open the hood to only find out a pigtail was broke but I've searched and searchrd and CANNOT this part anywhere can you guys PLEASEEEEE help me it's on the left side by on the engine it's apart on the engine

My check engine light has been on since I got the car (3 months ago) but starting about 2 days ago my car started shaking really bad when I go under 45mph or at stops/idling. When I go over 45mph it seems to stop. There is a delay on taking off. And sometimes I'll be driving and it cut to where I cant go over 20-25mph and sometimes the car just dies and have to sit for about 5 minutes before I can turn it back on. I'm new to being a car owner so any advice will be appreciated. I don't want to take it somewhere where I'll be given the run around and talked into buying things I really don't need.

I believe it's coming from the driver side front under the car. It only does it once and I can feel it in the floorboard. It will be louder if I'm on an uphill stopped and then accelerate. I had to get the control arm in the front replaced and I put 4 new tires on it about 2 weeks ago. Please advise what this may be as I feel like my axel is going to fall out while I'm driving. (I'm over exaggerating...I hope!)

I have good reason to believe this is somehow causing drain my battery as now every couple days I go out to my car and it's completely dead. Only electric though, otherwise the car runs perfect. Taken to a service center and they said they would have to check the wiring but I didn't want that specific shop doing anything to my car as it wasn't a place I trusted, I just went there because that is where my warranty paperwork suggested I go, although nothing they planned on doing was suppossedly covered. So, I will probably take it to a Kia Dealership or Kia certified shop. Is there any common problems like this, with my make and model, and is there anything I can do myself to maybe save money?? There is no malfunction with the battery(passed the tests according to the computer) or car operation. There is nothing keeping the trunk open, as far as I can tell it locks really well, although the warning light on my dash remains on when I'm driving or parked/engine on or off. Of course until the battery dies.

Only happens when headlights are on. I replaced the bulbs all around the vehicle and it sill blinks. There are no bulbs out, and the transmission works in all gears including reverse. Not sure why it is fading on and off.