2002 bmw 330i sedan cranks fine but wont start. replaced fuel pump and installed new battery but did not fix problem. dash indicator lights work fine, eml and engine codes on when cranking. any thoughts?

Ginko

• 19396 Answers
• Posted on Oct 24, 2008

SOURCE: 328i BMW, and the EML light is on

Sometimes you can reset the engine warning light by disconnecting the battery for ten minutes or more (be sure you have your stereo unlock code if needed).
That is not a good solution, it is better to diagnose and eventually fix the problem.
Have the car computer scanned with a code reader, the codes you get in return witll tell you exactly where to find the problem.

Here is the code list.

To get the codes the code reader must be connected to the car computer.


sometimes on Bmw you may need a Interface 16 pin Adapter, depending on the code reader.

Here is a home user code reader : PocketScan™ OBD II Code Reader (AXRCP9125 ...

Here is a good scaner.

Always better having the job done at a qualified garage.

SOURCE: My 2002 BMW 325I will not start in cold weather.

hi Fred, kind of sounds like you have a sticking, or contaminted idle valve. when it is 40-45F outside, a sticking or contaminated valve will cause the fuel mixture to be to rich. as the temp warms, the mixture requirement is not as rich. a quick check is to hold the gas pedal to the floor for 5-10 seconds when cranking cold and then let up. if it seems like it wants to start, the valve is faulty.

SOURCE: BMW 318i wont start engine

check the starter

SOURCE: EML, Check Engine, Limp Mode

What is limp mode, and it is MiL light( mal function indicator light)it is not EML. Please specify so i can help

SOURCE: bmw 530d e39 2002 car

Most probably its a low fuel pressure related problem.Get the fuel pressure checked.If its low then this is faulty fuel pump and clogged fuel filter issue.the other possibilities are,-----

A car that cranks over but doesn't start, in many cases will be due to a bad fuel pump, a broken timing belt, an inoperative cam sensor or crank sensor. Also this problems are related to faulty spark plug. Check the spark at spark plugs when you start the car. Do you notice any spark. Actually you should see. If in case there is no spark then it's a spark plug problem. Also the coil pack gives power to spark plug. So check the voltage at coil pack. It will show 12 volt.If there is no voltage noticed at coil pack then its faulty coil pack that has to be replaced.If all the possible options checked out ok then check the car starter. The starter gets power from battery to start the care. If the starter is faulty then it will not let the car to start. Also check and confirm that there is fuel in the car. If it very low fuel then in some cases this causes the problem. Also check and confirm that fuel pump is functioning properly and the fuel filter is not clogged. One of the easiest ways to check for a fuel pump related problem is to spray a little starting fluid into the air intake while trying to start the car. If the car starts momentarily, then there's a good chance the fuel pump is not working or the car is out of gas. You can also listen for the fuel pump's humming sound when the key is first turned on. Also if a inoperative fuel pump is suspected, a good technician will always check to verify there is power and ground being supplied to the pump, to eliminate the possibility of a bad relay or electrical issue. Fuel pressure can be checked with a pressure gage and if there is pressure, pulse can be checked at the fuel injectors in several ways including the most common, with the use of noid lights. If the injectors don't have pulse the engine won't start. ---------- This troubleshooting tips will help you to solve the problem.Thanks.Helpmech.