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shadeydaz, UK Car Mechanic
Category: UK Car
Positive Feedback: 82.4 %
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Experience: Trained in the UK. Worked on many makes. Multi-franchise.
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205 gti: fouling ignition coil could this be a voltage regulator

Customer Question

hi i have a 205 gti 1.9 1987 model and it keeps fouling ignition coil could this be a voltage regulator or is there something more common

Submitted: 1 year ago.
Category: UK Car
Expert:  shadeydaz replied 1 year ago.


shadeydaz :

How many coils has to "fouled". Did you replace them with new ones? What make of coil were they?

Customer :

it did have a cylinder type on it then when that went i put a original one which is a square one that screws on the manifold and i have blown 3 now, i think they are "ic" as a make. could water going into the electrics be a consideration to take into account as it seems to happen when it rains. tried a coil last night and it tried to fire but was misfiring as it was turning 10 secons later dead as a dodo.

shadeydaz :

Have you replaced the plugs as well.? if a plug mis-fires the charge has to go somewhere, and if the weakest plce is the insulation with-in the coil, it will blow the coil. Make sure the plugs are the correct application for the car. Where abouts is the water getting into the electrics? Darren

Customer :

Hi, i have changed the plugs, i have put Denso Iridium plugs in, the water came in the car glove box area!!!!!!!

shadeydaz, UK Car Mechanic
Category: UK Car
Positive Feedback: 82.4 %
Satisfied Customers: 58
Experience: Trained in the UK. Worked on many makes. Multi-franchise.
shadeydaz and 6 other UK Car Specialists are ready to help you
Expert:  shadeydaz replied 1 year ago.

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Expert:  shadeydaz replied 1 year ago.

What was the reason behind you putting iridium in?

Customer: replied 1 year ago.

hi, ok we have manged to get a half fire by tapping a wire off the negetive on the battery to the neggative on the coil, the crank sensor has been bypassed what else does it use for creating a pulse for the coil to work

Expert:  Mike replied 1 year ago.

Hello - Welcome to justanswer..

My name is XXXXX XXXXX XXX previous expert has opted out / used the opt out so is not working with you anymore, so I will endeavor to help you with this issue you have with your 205.

The usual cause of repeated coil failure is a fault within the Ecu itself. This is because the "drivers" for the ignition coil are inside the ecu - as a part of the pcb / circuitry.

Check though that the engine is earthed properly - check the condition of the battery earth - and earth connector to the body -and then the transmission - bad earths there can cause component failure / burn out too - so do check that first.

If you keep getting repeated ignition coil failures though, and all else checks out as ok - inc the connections to the ecu - then the ecu will be your suspect Im afraid to say..that would be the next thing to consider. I would suggest sending the ecu off to one of the various ecu test / repair companies in that case....( they advertise on google so you can choose on that suits you )....

So check the earthing and connections - to inc the earth for the ecu as above -and then progress with this as above to get to the bottom of this now.

I'm very pleased to have helped you- .. By all means let me know if I can help anymore...

Meantime >>> Please click the Accept smiley for me Now - Thank You ...

Please note , you need to press the Accept smiley button even if you are a subscriber to justanswer - thank you .

Kind Rgds - MIKE


 


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