Help needed no spark in my 87 325i - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 04-21-2009, 01:05 PM
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Help needed no spark in my 87 325i

hi was wondering if anyone could help?
I have an 87 e30 325i sport when you turn the ignation on the car turns over but wont start it seems to be turning over very fast but the cylinder test was fine. the car will start on a bump and runs fine.
here,s a few things i,ve tried.
new plugs, leads, distributer cap rotor arm and battery.
when you check the coil with the ignition on there is 12.17 volts and when winding over its 10.47 volts and same with the main ht lead but when you check the plug leads when trying to fire the engine theres no spark or voltage. i,ve even change all the relays and check all fuse,s.

really need some help as my heads has been wrecked now for a full week.
cheers
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#2 (permalink) Old 04-21-2009, 02:33 PM
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crankshaft sensor, I would say.

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#3 (permalink) Old 04-21-2009, 03:11 PM
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hi thanks for your reply your boy i bought the car of told me he had replaced the camshaft and crankshaft sensor how can you test them. was also wondering how to bypass the (obd). i just think its funny how the voltage makes it right threw to distributor cap but the rotar arm mustn't be put it threw to the plugs.
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#4 (permalink) Old 04-21-2009, 07:41 PM
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what's a bump?
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#5 (permalink) Old 04-22-2009, 04:18 AM
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when you give the car a push and bump start it in gear.
cheers
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#6 (permalink) Old 04-22-2009, 04:58 AM
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I had the same problem with my 87 528e. I had no spark, checked grounds, replaced DME, fuses, coil, rotor, cap, plugs, to no avail. I ordered a crank sensor and got the one that is on the pulley, by the way, what does that sensor do?, I followed the wires, and they go to a pin receptacle plug, that goes nowhere. I finally located the crank position sensor below the starter. I found where the two plugs connected on a bracket below the plainum, and cleaned the plugs, and it started right up, but my idle is bouncy, then stalls, but I am going in the right direction. Good Luck, Daddio
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#7 (permalink) Old 04-22-2009, 05:09 PM
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cheers will check them tomorrow the air flow metre makes them idle funny or the fuel pressure regulator
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#8 (permalink) Old 04-22-2009, 05:12 PM
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i have that sensor to it goes to the (obd )but isn't connect to anything must be used for dianostics not sure.
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#9 (permalink) Old 04-22-2009, 06:53 PM
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think about what you said. the engine will start with a bump? and runs fine? that rules out a number of issues, right?
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