View Full Version : 535 wont start newb


NMDerek
11-15-2007, 02:51 AM
hiya and tia,
upgraded from a 73 2002, and i have been having intermitant elec problems
Sooo... rolled started the car twice one day, finally crapped out at my mechanics house.
cranks but wont turn over. OK so here we go.. newb here not a mechanic but i can pass your info along.
Not getting pulsing at coil (while cracnkin)
not getting pulsing at injectors(while cranking)
swapped 2 good relays in to main relay
new sensors , er the 2 things near the windshield
fly wheel has magnet ( im just a fly on the wall as i listen to my buddy as some experts)
NEW computer! 300 bills but had a nice chip upgrade
wont roll start any more
Key ignition was replaced a bit ago
weird thing was it fired up twice during the week long stay at this house
worked great for the last 6 months...
its getting towed to a bmw certified guy soon but learning is fun so thanks for any hints yall may have NMDerek

uberkarldrei
11-15-2007, 07:06 PM
have you checked the cluster of grounds between the #5 and #6 injectors to be clean and tight. and the relay that sends power to the DME under the kick panel. also there is a small 4 pin plug right by the ecu. it should have three wires to it. should be the green one that needs power to start up the DME and pulse the injectors and fire the coil.

NMDerek
12-11-2007, 01:59 AM
update, just fyi finally got it towed and it was the security code wire that was broken on the inside, thats why it was intermitent and i couldn'r roll start it 600 dollar fix
but its not a boat anchor anymore

uberkarldrei
12-11-2007, 11:47 AM
also there is a small 4 pin plug right by the ecu. it should have three wires to it. should be the green one that needs power to start up the DME and pulse the injectors and fire the coil.
600 dollar fix
/??????????????????/
who gets the cash
/??????????????????/

NMDerek
12-13-2007, 05:34 PM
the ecu in the glove box? i never saw a relay under there, or is there one in the engine bay