Technical hElp burning out coils and modules

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Technical hElp burning out coils and modules

christoz

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May 18, 2015
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Hi my name is Chris frm rsa . My problem is that my faithful fire 1.1 has for the last 2 mnts blowing coils and modules . I even tried having a separate switch for the coil still Doing the same thing . Plz help coz I'm stuck with this now .thanks Chris
 
Good advice above.

Also check engine earths and the earth for the coil and module. The current has to go somewhere, and without a good earth to complete the circuit electronics can get fried.

Ensure the HT leads are good. If they are breaking down inside, they create a high resistance and the current will escape through the electronics instead of at the plug.
 
Thanks 4 the reply , I have grounded the coil with a strap directly frm the neg batt terminal and a extra ground frm the module ground that's attached to the dizzy to the neg terminal still no luck , I get a constant 12v - 14.3v on the coil positive terminal but somtimes the voltage spikes I dnt knw y :bang:
 
IV burned 2 marrelli stock coils bae506a and 2 aftermarket coils and abou 6 modules IV checked all wiring seems to be in order and in original condition IV replaced dizzy cap spArk plugs I av tried putting heat sink compound as well . I was thinking maybe its the pickup in the dizzy . I disAssembled it checkd the wires fr fraying bt it seems fine , thanks Dav I've reAd that tread b4 n used some advice thanks all for the help:D
 
I've changed the regulator on the outside of the alternator the white box with two screws on it and brushe sattached to it, its a bosch alternator , do u mean the rectifier inside the alternator bill ?
 
Unusual for external regulators these days, lucky to see it.
The regulator on the outside is what should control any voltage spikes, although if the rectifier is dying, it might allow a reverse voltage, which electronic stuff won't like. If you can isolate the rectifier, a simple resistance test should show high in one direction for each diode and low in the other. Although if they only occasionally fail, the voltage from a test meter is unlikely to show a fault. If the diode pack is available and easily replaceable, it would be worth doing.

Can you connect a voltmeter temporarily to watch while driving to show if any spikes occur?
 
I can't get a chance to take the car for a drive coz I've been towed hme 4 times nw with the car , I'm busy trying to locate an alternator parts store as these are rare over here , I took the dizzy apart today and notice the magnet on the pickup was broken in two could this be the cause
 
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