» Site Navigation | | » Recent Threads | | | | | | | 02-20-2008, 04:40 PM | #1 | Junior Member Join Date: Feb 2008 Location: USA Posts: 11 | electric help needed Feb.-19-2008Hi guys ,my name is Alex and am completely new to this forum ,if I do some mistakes ,please sorry. OK ,I’ve got a 318ti last summer. It was not running , the engine has been overheated the cylinder head was warped. I put a new piston rings ,new head gasket and done a machine work on the cylinder head . Afterward I’ve got decent engine but still doesn’t run. There was a electric supply problem .The main relay did not get ground from the DME and fuel pump relay wasn’t powered . So ,I replaced the DME and got power to the fuel pump relay , and the electric components after it , but now the DME doesn’t ground the fuel pump relay and the ignition coil and injectors. U know when you turn the key ON , you hear the buzzing sound from the fuel pump – I don’t .I make sure the pump is OK. So I gave up. The last chance I have is ,if the overheated engine burned somehow the crank position sensors , or camshaft sensor . I read somewhere ,if DME don’t get a signal from the crank sensors , or camshaft sensor it wont operate the ignition and fuel system . That’s my question , do you guys think that’s possible ? I’ll take any advise and thanks in advise . | | | 02-20-2008, 05:14 PM | #2 | Senior Member Join Date: Sep 2006 Location: Wisconsin Posts: 1,895 | What about the basic stuff? Battery terminals clean. Bad battery. Engine ground strap connection bad. Starter wiring loose. __________________ ... ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ | | | 02-20-2008, 10:38 PM | #3 | Junior Member Join Date: Feb 2008 Location: USA Posts: 11 | I ve checked everything ,everything.Battery,conectors,ground ,it crancks.Just dont start | | | 02-20-2008, 10:52 PM | #4 | Senior Member Join Date: Aug 2004 Location: state college, pa Posts: 3,431 | A bad CPS should throw a CEL code. Sometimes, owners remove the bulb instead of fixing the problem. The computer will still store the codes though, so you can have them read. __________________ I scream, you scream, we all scream for ZOMBIES. | | | 02-20-2008, 11:20 PM | #5 | Senior Member Join Date: Sep 2006 Location: Wisconsin Posts: 1,895 | Maybe its out of gas. So, does it get spark? Did you do a compression check after the engine work? __________________ ... ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ | | | 02-20-2008, 11:32 PM | #6 | Member Join Date: Sep 2007 Location: N.W. VT Posts: 33 | Electrical Problem Did you have the new DME reset to match the chip in your key? The DME and keys are matched for theft protection. | | | 02-20-2008, 11:39 PM | #7 | Senior Member Join Date: Oct 2007 Location: Eugene Oregon Posts: 6,182 | IIRC when you dont have the dme and key aligned it doesnt even crank __________________ -Josh Sold-1995 318ti, Club Sport, Hellrot Sold-1996 318ti, Active Model, Boston Green Current- 1995 318ti, sport model, schwartz | | | 02-20-2008, 11:53 PM | #8 | Junior Member Join Date: Feb 2008 Location: USA Posts: 11 | No spark at all.I got the battery voltage to the ignition coil ,but no spark.So I assume there is no ground from the DME.And I didn't know the DME and the key shuold be alighned in someway.On the otherhand ,the engine cranks.Should I go to the dealr with dme and the key ,just that simple ? | | | 02-20-2008, 11:59 PM | #9 | Junior Member Join Date: Feb 2008 Location: USA Posts: 11 | Yes ,there iis a OK ,I gues compression between 11,5 and 13 psi on the cylinders | | | 02-21-2008, 12:00 AM | #10 | Junior Member Join Date: Feb 2008 Location: USA Posts: 11 | not psi | | | 02-21-2008, 03:04 AM | #11 | Senior Member Join Date: Sep 2006 Location: Wisconsin Posts: 1,895 | I copied this off of a performance chip site and it makes it sound like the DME has to match up with the key. I guess you'll have to call the dealer. What is EWS-II? EWS-II is an additional theft-deterrent system that BMW installed in cars beginning in Dec 1994 (12/94). On cars with EWS-II the signal from the key must match up to a signal coming from the EWS-II and DME computers or the car will not start. How does it work? The key for your BMW has a microchip embedded in it that sends an analog signal to an antenna within the ignition lock on the steering column. The antenna sends the signal to the EWS-II computer. The EWS-II computer then checks with the DME to validate the code. The car can only be started when the DME recognizes the code from the EWS-II computer. The key is simply turned, and by the time the ignition switch is reached, the EWS-II system has finished its processes and identified the electronic coding in the key and 'granted' starting permission. __________________ ... ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ | | | 02-21-2008, 03:18 AM | #12 | Senior Member Join Date: Sep 2006 Location: Wisconsin Posts: 1,895 | Where did you get the replacement DME? Did you put the original chip in the new DME? __________________ ... ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ | | | 02-21-2008, 03:48 AM | #13 | Senior Member Join Date: Dec 2004 Location: Muncie, Indiana Posts: 1,551 | The DME does not need to aligned on a 1995 with EWS-II for 1996 and on with it requires alignment. | | | 02-21-2008, 02:59 PM | #14 | Junior Member Join Date: Feb 2008 Location: USA Posts: 11 | Thanks you all ,it's seems you are giving me a solution after all this months,I should find that forum ,long time ago. The DME I replaced by miself,didn't put any chip in it - never hurd about it before. Never hurd EWS also . | | | 02-21-2008, 03:02 PM | #15 | Junior Member Join Date: Feb 2008 Location: USA Posts: 11 | One more question,is it normal that I have to log in everytime I want to put a new thread or there is a limited time I can that so ? | | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |