[syam]

Hi to everyone.. this is my 1st post..

anyway im having this problem with my 92, e36, 325i coupe.. i bought it from someone who claimed that the car was ok..just need to replace the fuel pump, well after i replaced the pump it stll doesnt starts.. i checked on the fuel pump but there was no current supply.. i even checked the fuel pump relay holder but there was no power @ all.. took the coil out to check spark & theres non.. what could be the problem? pls help me.. thanks

 

[xXxStKxXx]

You've replaced the fuel pump relay and checked all the fuses etc?...Have you got an aftermarket immobiliser on it?

 

[syam]

i've changed the relay, checked the fuse no.18( fuel pump).. its good.. its just that no power supply to the fuse 18, fuel pump relay & dme relay.. thanks for the quick reply

 

[Ronnie]

No power at the DME relay and fuel pump relay you say?

 

[disco!!!!]

i had this same problem on my 328i (converted from a 318iS)
it turned out the wire from the battery to the ecu had a break in it?

do you know what alarm is fitted, is it the standard BMW alarm or is it an aftermaket alarm

 

[syam]

yup no power @ all to the relay... it is using aftermarket alarm system.. pls help.. i wanna enjoy driving this machine heh heh

 

[syam]

thanks disco will try it asap.. thanks for the tips.. in case anything will inform you here...

 

[syam]

stk.. no aftermarket immobilizer on it... im gonna check on the alarm 1st... thanks

 

[gildersol]

Are you checking properly for voltage at the relays. If so and there is no voltage at pin 30 or 86 on the DME relay, then you may have a broken wire. Check the wires around the splice point back at the bulkhead. Check the wires that come from the splice point as 2 of them go to the DME relay. One of them is a thin wire 0.5mm and the other is 4mm.

 

[syam]

hi gildersol.. i've checked the power @ pin 30 of the DME relay & fuel pump & there seem to have power but not for the rest of the other pins.. strange.. this is my 1st electrical problem....

 

[gildersol]

You should also have +12v at pin 86 on the DME relay

 

[syam]

no voltage @ all @ pin 86... as for the fuel pump relay i joint the pin 30 & 87 the pump is working.. but still there's no spark hmmm

 

[gildersol]

no voltage @ all @ pin 86...

Are you checking between a good earth and pin 86. If so and there's nothing then that's your problem

 

[syam]

ok let me check it again gildersol

 

[syam]

ok there is power on that pin must have mistaken it earlier.. what should i do next?

 

[gildersol]

Does it rain much where you are.
If so read this http://www.pelicanparts.com/bmw/techarticles/E36-DME-Repair/E36-DME-Repair.htm

May also be immobiliser related

 

[syam]

Thanks for the help gildersol... will look @ it real soon..

 

[syam]

Gildersol!! thanks for your help.. my dme arrived yesterday from singapore.. solved the problem already now my car is back on the road... thank you

 

[gildersol]

Good Stuff:thumbsup