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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E30 (1982 - 1993)

E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #1  
Old 12-11-2013, 12:11 PM
Grahamd1970 Grahamd1970 is offline
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Location: Luton
 
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Mein Auto: E30 325i convertable
Hi I got an e30 325 and got spark petrol but won't start can anyone help

I'm in Luton if any one near


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  #2  
Old 12-12-2013, 01:04 AM
Billwill Billwill is offline
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Mein Auto: BMW E30 318i 1991
Quote:
Originally Posted by Grahamd1970 View Post
I'm in Luton if any one near


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Is this Luton England?
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  #3  
Old 12-12-2013, 01:23 AM
Grahamd1970 Grahamd1970 is offline
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Location: Luton
 
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Mein Auto: E30 325i convertable
Hi I got an e30 325 and got spark petrol but won't start can anyone help

Hi yeh north of London it seems there's no pressure at the rail I'm trying not to take the injectors out to see if any spray from them put new plugs in new cps new fuel filter


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  #4  
Old 12-12-2013, 09:20 AM
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hornhospital hornhospital is offline
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Mein Auto: 1995 318is / 1993 325is
If you have no pressure at the rail, it'll never start. It has to have ~40psi to spray through the injectors adequately to even fire up. Will it fire on starter fluid?
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  #5  
Old 12-12-2013, 09:56 AM
Grahamd1970 Grahamd1970 is offline
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Location: Luton
 
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Mein Auto: E30 325i convertable
Hi I got an e30 325 and got spark petrol but won't start can anyone help

Not tryed that yet just today I took fuel rail out to see if it sprays when starting and then going to do the connector check with bulb to see if flashes to make shore got power to it aswell


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  #6  
Old 12-13-2013, 12:08 AM
Billwill Billwill is offline
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Mein Auto: BMW E30 318i 1991
You should join the forum at http://www.e30zone.net

Lots of locals there to offer advice and there may be someone near to you that can help.

What year/model is your 325?

Last edited by Billwill; 12-13-2013 at 12:12 AM.
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  #7  
Old 12-13-2013, 10:47 AM
Grahamd1970 Grahamd1970 is offline
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Location: Luton
 
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Mein Auto: E30 325i convertable
Hi I got an e30 325 and got spark petrol but won't start can anyone help

Hi again mines a 1990 and took injectors out they clogged so cleaned them and connected to fuel rail but no spray I took a wire and earthed to body and it sprayed so took manifold of to get all cleaned up and put rail back as no way can do in car so there's no power going to the injectors I looked at Manuel and it says about relay 10 and 11 were are they do you no


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  #8  
Old 12-14-2013, 12:31 AM
Grahamd1970 Grahamd1970 is offline
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Location: Luton
 
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Mein Auto: E30 325i convertable
Hi I got an e30 325 and got spark petrol but won't start can anyone help

Hi what's the dmc I saw a post from guy on there and seems that a censor that controls the injectors pulse not working


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  #9  
Old 12-14-2013, 04:48 AM
Billwill Billwill is offline
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Mein Auto: BMW E30 318i 1991
Quote:
Originally Posted by Grahamd1970 View Post
Hi what's the dmc I saw a post from guy on there and seems that a censor that controls the injectors pulse not working


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The Crankshaft Position Sensor (CPS) controls the spark, the fuel pump and the injector timing.

Seeing as you have spark and fuel then that sensor is working OK.

The one side of the injectors...Red/White wires...should have +12 volts on them when ignition is turned ON...this is connected to the injectors via C191 which sits under the throttle body and is known to give problems. The other side of the injectors, Brown/White and Brown/Yellow get turned to ground when the ECU decides that it is time to do so from the CPS pulses....these two grounds also go through this C191 connector.

I would suggest you check this C191 connector and measure the Red/White wires at the injectors with a meter to check you are getting a solid +12 volts there.
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  #10  
Old 12-14-2013, 10:38 AM
Grahamd1970 Grahamd1970 is offline
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Mein Auto: E30 325i convertable
Hi I got an e30 325 and got spark petrol but won't start can anyone help

Thanks il do that I took the injectors and cleaned them they were glogged don't no if that didn't help and I took inlet manifold of and clean it ready to put the rail and injectors back I did look just beside the ecu on drivers side there's a relay just beside it and a brown wire with a spade connector that's broken seems like it has some kind of resister or something in the middle


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  #11  
Old 12-14-2013, 11:56 PM
Billwill Billwill is offline
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Mein Auto: BMW E30 318i 1991
Quote:
Originally Posted by Grahamd1970 View Post
Thanks il do that I took the injectors and cleaned them they were glogged don't no if that didn't help and I took inlet manifold of and clean it ready to put the rail and injectors back I did look just beside the ecu on drivers side there's a relay just beside it and a brown wire with a spade connector that's broken seems like it has some kind of resister or something in the middle


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As far as I know that relay and resistor are part of a cold idle problem "fix" from BMW but I thought those only happened on early 325s. Doubt this has anything to do with your problem, I think you should ask around on e30zone.net for some help!
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  #12  
Old 12-15-2013, 12:31 AM
Grahamd1970 Grahamd1970 is offline
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Location: Luton
 
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Mein Auto: E30 325i convertable
Hi I got an e30 325 and got spark petrol but won't start can anyone help

Ok


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  #13  
Old 12-16-2013, 01:25 PM
Grahamd1970 Grahamd1970 is offline
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Location: Luton
 
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Mein Auto: E30 325i convertable
Hi I got an e30 325 and got spark petrol but won't start can anyone help

Hi again one more thing got the injectors clean and manifold wire brushed clean and about to put back together and was checking ecu unit and a bolt that holds it up was missing so it was just holding itself up does that unit need to be earthed as in is it the main earth I should no when put together as arfter checking wires they seem ok


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