my m3 wont start......

e30&e36 · #1 (**permalink**) 02-05-2008, 07:53 PM

hey guys i have 99 m3 and this thing wont start!! i mean i didnt drive on it for 3 weeks and i get in now and all it does is it turns the enigne but it wont fire up....

i have more the half tank of fuel
pump works
i get fuel in the engine

but there is no spark...... i mean the coils get no power...... i took out a coil and tried to test a spark plug and it didnt do anything....same with all the others....

what could be wrong??? ( im pissed..

)

thanks.....

denis

RacerJames666 · #2 (**permalink**) 02-06-2008, 10:39 AM

Check your engine ground strap, fuses, relays, ground connections etc....go for the cheap stuff first

e28m30 · #3 (**permalink**) 02-20-2008, 01:58 PM

Did the car get moved, then shut off(Need to let it run for a min once started). These cars foul spark plugs very easy. Was the car setting outside? Did it rain hard while it had been setting. If so, check the DME, cowl drains get stopped up & then the control unit gets wet & goes FUBAR. Try another key, EWS could have lost sinc. Crank or cam sensor. Dme/main relay. Best guess I can come up with. Good luck. Shayne

pako · #4 (**permalink**) 02-20-2008, 05:46 PM

get a jump box and fire it up

RacerJames666 · #5 (**permalink**) 02-22-2008, 01:37 PM

Quote:

Originally Posted by e28m30

These cars foul spark plugs very easy.

You are running terribly rich I think...My plugs always look...well...boring. Perfect acrost the board every time. Maybe you have a o2 sensor nearing the blink?
(also the drain issue was fixed on cars post 1994....look for bmw bulliten 41 03 93 from july 1994

e28m30 · #6 (**permalink**) 02-28-2008, 02:59 PM

What I am referring to is that these engines do not like to be started & then shut off. IE: pull it out of the garage to get the mower out, then put it back in the garage, don't allow any warm up time & most likely it's not going to want to start, plugs are fouled. The s50/52 is by no means as bad about this as say an s38/88 or m60/62 motor is but still, have seen it happen. Hope you got the M started & all is well.

RacerJames666 · #7 (**permalink**) 02-28-2008, 04:28 PM

Ahhhhh yes!
Sorry!
And I second that on the hope she startededed up fors ya!

e30&e36 · #8 (**permalink**) 02-28-2008, 11:06 PM

i got a computer out of my friend m3 and installed it onto mine.... it fired right up......

the problem was in the ews.... something went wrong with that thing.... so im buying a new set (ecu, ews2, and a key)

thanks for your help though.......

denis