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Old 03-02-2012   #31
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Re: Ht leads and coil pack

Unless you want a few millions volts running through your volt meter, and turning it into a mound of molten plastic dripping over your hands, TURN OFF THE ENGINE!!

Just think about what you are measuring here and what it's function is! (Trust me, several thousand volts hurts like a bitch if you're lucky. It'll stop your heart if you are not)

(The melting plastic bit might be a bit exaggerated but it WILL ruin your voltmeter and possibly your day if you try measuring the coilpack with the engine running
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Last edited by Gregovic; 03-02-2012 at 22:48. Reason: Splelling errors
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Old 04-02-2012   #32
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Re: Ht leads and coil pack

thanks for that didn't think there would be much voltage in the connectors that's all lol
Hope you guys have better luck than i am having had similar problems like i said i have now changed the plugs,leads,Coil pack and still the same ,if you guys do fix it please post on here what was up so it might help me lol
if anyone can help on mine also ive got a thread also
https://www.fiatforum.com/bravo-brav...is-firing.html
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Old 05-02-2012   #33
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Re: Ht leads and coil pack

Lol I've just realised I posted in a thread that was a few years old gotta remember to check dats first lol
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Old 28-02-2012   #34
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Wink Re: Ht leads and coil pack

Hi have y plate punt Mia warning light came on intermediate cutting out and no power in reverse cleaned air filter n hoses then next day driving the same if not bit better still had no power in reverse then it started to cut out again wen going into second thinking could b coil heard there's a secondary coil one coil firing 2cylenders can get both coils for 20 pound but want to b sure before spending money just had new battery n starter fixed so think can eliminate them. Any help appreciated. Tnx it's a 1200cc
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Old 28-02-2012   #35
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Talking Re: Ht leads and coil pack

New to forum can someone pm me or reply on screen don't know how to retrieve replys
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Old 04-08-2012   #36
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Re: Ht leads and coil pack

Hello,Jugs.Re : this old post of yours:re: Should not test HT leads. I have checked the resistances several times on my 1994 899cc Cinquecento ,recently purchased . I have readings on 20kohms setting of 0.5 0.45 0.2 and one lead has 3.73. Yes I could just replace the leads but I would like to know which ones are faulty as a learning experience. Is there a reason why the leads should not be tested? What are the correct resistances please. Thank you ,Cinquephil175.
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Old 05-08-2012   #37
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Re: Ht leads and coil pack

The resistance of HT leads is so high it's hard to properly test them with a normal Ohm meter. So you never know for certain if a lead with a high or low resistance actually HAS that resistance or if there was bad contact between one of the probes and the lead.

Also, HT leads don't have a fixed "correct resistance". It varies from lead to lead and brand to brand. The resistance is not really of that great an effect on the ignition so long as there are no internal breaks or worn insulation. (Another reason why you can't really test them in the first place)

HT leads are relatively cheap. If you suspect one might be bad, it's better to just replace them. If one wasn't bad already, one will go bad soon. So by replacing when you suspect they MIGHT be playing up you avoid trouble later.
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Old 27-02-2018   #38
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Re: Ht leads and coil pack

Quote Originally Posted by Rob666 View Post
I had this prob on my 1.6. pot 1 wasn't firing and blew my ignition pack. after going through a (so-called) automotive electrical engineer who told me that my leads where fine I ended up replacing the coil pack, ECU (I know), plugs and eventually found out that the leads connector, where it attaches to the top of the plug had failed and the lead was shorting on the block, boiling the ignition pack! needless to say the electrician gave me my money back and paid for half the new ECU. At least I know I've got a new electrical system in the car now. so Warning to all, check the leads and the plugs electrically and physically first before taking it to a garage.
I'm confused which lead failed? The one that fits on to the top of the spark plug ?
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Old 28-02-2018   #39
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Re: Ht leads and coil pack

Quote Originally Posted by deeinlondon View Post
I'm confused which lead failed? The one that fits on to the top of the spark plug ?
This thread was originally from 2012 you likey won't get a response now
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Old 28-02-2018   #40
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Re: Ht leads and coil pack

I've had the same car for the last 18 years - I may or may not - but it don't harm not one to ask :-)
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