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Discussion Starter #1
Hi all. We have a rather older but low mileage Picanto. Great little car. It does have an intermittent problem. When about to pull away, in Drive, it just dies. Then will not turn over. Ignition lights all come on but nothing. I “think” if I take the key out and wait a minute or two, something is resetting. I want to say immobiliser but not convinced as it will not even turn over. Then when I hear the radio reset I know it will start. Really weird issue and unnerving sitting in traffic. Any ideas? Cheers.
 

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Discussion Starter #3
Check battery connections, particularly the body end of the ground strap (take it off and clean it up)..
Hi. Will take a look. If it were the issue why would the engine just stop but still have power at the dash etc? Engines can run without a battery (not recommended of course) so I’m not sure it matches the symptoms?
 

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If there is a poor battery connection then this can screw up all sorts of electrical systems, such as the ECU and give bizarre symptoms Dash takes very little power and may survive on low voltage. Poor ground connections seem to be something of a theme for some KIA models.
 

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Discussion Starter #5
If there is a poor battery connection then this can screw up all sorts of electrical systems, such as the ECU and give bizarre symptoms Dash takes very little power and may survive on low voltage. Poor ground connections seem to be something of a theme for some KIA models.
Ah yes understood. Will take a look and update back. Cheers!
 

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Discussion Starter #6
Checked the battery and ground connections. All look good and checkwe with the meter... What next do we think?
 

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Discussion Starter #7
Ok so a follow up. various posts about crank shaft sensor. Including the kia Garage manual says cutting out can be crank shaft sensor. Have had it changed and it's just cut out again. Lost on ideas and really not giving us any confidence. Any one got any bright ideas?
 

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My first thought was the immobiliser too, but whilst that would stop the engine from cranking, I don't believe it wouldn't stop it running once started. A bit of a puzzler this one.

When the car dies and you then try to crank it, does the little immobiliser symbol appear and stay illuminated in the dash display? If that is the case, then the car won't crank - all the dash lights will come on, but there will be no power to the starter.

A few months ago, my remote opening started playing up a bit, so I removed the batteries from both the key fobs in case I could not unlock / disarm the alarm remotely. I now just use the key in the door lock.

While I was checking the remote opening, I had a look at the immobiliser antenna coil fitted to the steering column. It detects the key when it is placed in the ignition and allows the car to start. If the immobiliser symbol on the dash disappears when you put the key in the ignition, it's working OK - if it doesn't, that may be the problem. It's easy to get to the coil by removing the steering column shroud and you can try wiggling the connectors in case they are loose - worth a try?
 

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If there is a poor battery connection then this can screw up all sorts of electrical systems, such as the ECU and give bizarre symptoms Dash takes very little power and may survive on low voltage. Poor ground connections seem to be something of a theme for some KIA models.
Tell me about it my Carens 3 diesel wouldnt even light up but on a hunch we used a jump cable from negative battery post to the engine, Voila! it all lit up and started, one of the two earth to body bolts had sheared off and the remaining lug needed a good clean, replace it with a couple of aftermarket straps one to the chassis and one to a handy engine bolt
 

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Discussion Starter #10
Hi all. So just before the UK went into lock down, the car came back from the Garage like a hairdryer on steroids. Clogged up throttle body. Cut out whilst on test and Garage really confident that's sorted it. So cheap crank and cam shaft sensors done and cleaned throttle body. Looking good so far. But now can't go anywhere! Lol. Stay safe. Thanks for all the suggestions.
 
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