E85/E86 Z4 ,3.0I not Starting

[mopkop]

My z4 was standing for a while when I tried to start it ,I found the Battery low voltage ,I connected my charger to the points provided in ehe engine bay and charged the batt ,now everything work,engine crank but will not start, I checked all fuses all ok ,need help Please :x

 

[mopkop]

Lets try again ,My Z4 crank but will not start ,all fuses ok ,batt charged any idea please
[email protected]

 

[Smartbear]

Lets try again ,My Z4 crank but will not start ,all fuses ok ,batt charged any idea please
[email protected]

Welcome to the forum.
Hi, you must be missing either sparks or fuel to have a non running engine-try taking a plug out but reconnecting the coil and cranking to see if it’s sparking.
If it is, check for fuel
Rob

 

[Anmarube]

What's the battery output? It may be that yes it's charged but battery is on the way out and it's not putting enough into the starting system. Is it slow to turn over?

 

[mopkop]

It crank strong ,I even connected a spare battery to the terminals provided in the engine bay ,I checked the 5 fuses in the engine bay inside the black box as well. everything els work fine ,tried spare key no help.

 

[Anmarube]

Morning buddy

Would be handy at this stage to get the codes read and see what the car is saying. Post on here to ask if anyone has a code reader and are near to you. Lot of very helpful people on here.

 

[ph001]

Can you hear the fuel pump prime when you turn ignition to pos 2?

 

[mopkop]

Checheked the fuel rail no fuel

 

[ph001]

Fuel pump fuses / relay got to be next on the list. It's fuse no. 19 & 33....

https://z4-forum.com/forum/viewtopic.php?t=38888

Then the fuel pump relay is K6301...

http://www.realoem.com/bmw/enUS/showparts?id=BT53-USA-01-2004-E85-BMW-Z4_30i&diagId=61_4110

 

[raymond.harper]

Try using the other key to see if it will start. The key battery is charged by the car and it may not be have enough charge to register with the security system

 

[mopkop]

no fuel out of rail when cranking ,and no msg code found on scanner

 

[ph001]

OK..but are you actually listening to any of the replies here

 

[Ducklakeview]

OK..but are you actually listening to any of the replies here

+1

Try disconnecting the air intake, and have someone spray a little WD40 into it as you crank, IF the engine fires, then you know you have a spark. HOW have you checked the fuel rail pressure? There is a test nipple on it for a gauge on 6 cyl cars, not sure about the 4's.

Mike