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Engine management light

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Old Jul 14, 2014 | 08:23 PM
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Default Engine management light

Hi All,
Just had the Cossie out for a drive for the second (yes-second) time today.
After about 40mins of driving the light came on, not heavy driving as family in the car.
Usual thing, turned engine off when arrived, then when was leaving a short while later started car, light went off, but came on again about 30mins later, but obviously again went off when engine stopped.
Just took car for another drive around my town and light didn't appear at all.

The car is running fine with no misfires, oil pressure fine, turbo spooling fine, basically nothing obvious.

With National Day fast approaching I need to sort this.
Suggestions????
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Old Jul 14, 2014 | 08:50 PM
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is the car standard or chipped ?
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Old Jul 14, 2014 | 09:38 PM
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Car is mild stage 3.
Green injectors, 4x4 turbo and intercooler.
Not running huge boost etc.
Been fine for years, not changed anything recently, except new wheels.
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Old Jul 15, 2014 | 12:35 PM
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It's very basic, I don't think there are thresholds, therefore it's only when a sensor goes open circuit it recognizes the fault, it's most likely a poor connection!

Apart from doing the basics and checking connections it can be tricky to pin point, given there is no logging!

The only exception is if you have a data stream, there is a output where you can connect a LED and a resistor, when an error occurs the LED flashes in a sequence to indicate what it is, but again given the fault is intermittent, you would have to have this connected at the point of failure!

Martin
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Old Jul 15, 2014 | 09:08 PM
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So would you drive it 200 miles each way to a show this weekend???
I`m doubting I will at present
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Old Jul 17, 2014 | 04:14 PM
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Take the bulb out lol.
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Old Jul 17, 2014 | 04:32 PM
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If it driving fine I'd just ignore the light.
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Old Jul 17, 2014 | 05:25 PM
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Unplug the crank sensor where it joins next to the dizzy cap and give it a spray with electrical cleaner , mine did the same and done 100 miles yesterday and it was perfect again .
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