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 Post subject: Volt drop at the coil???
PostPosted: 20 Feb 2012, 22:45 
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Joined: 18 Jun 2004, 16:49
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Location: North Shore, Auckland
Your car: Cordia Turbo
VOLT DROP AT THE COIL!!!!
Only 9V at the coil but after changing to new battery took it up to 11.6V I found the alarm was causing the volt drop so bypassed it and then had 12V at the coil. Then found that even the fuel pump when turned on did the same thing, anything lights, wipers etc would give a slight volt drop from 12.2V to around 11.6V at the coil. Car will not start not even try but as soon as I put 12V straight to the coil starts. would like to find the problem rather than run a new feed. My question is what voltage should you have at the coil when the car is running? Any ideas what might cause this volt drop?

Car is a Cordia Turbo 4G62T

Thanks for any help


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PostPosted: 21 Feb 2012, 20:38 
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Joined: 10 Jun 2006, 00:35
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Location: Adelaide South Australia
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Your car: DOHC 2.3 VR4 85 AB GSR
Immaculate Stock 86 AC GSR
The 12 volt source for the coil runs from the main control relay (found on the passenger side in wheel well of the dash) if the contacts are corroded this will also cause your voltage drop.


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PostPosted: 21 Feb 2012, 20:43 
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Joined: 18 Jun 2004, 16:49
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Location: North Shore, Auckland
Your car: Cordia Turbo
Will check this tomorrow... Thanks


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