Engine dies randomly.
05 March 2013, 05:01 PM
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Engine dies randomly.
I have a V2 WRX with cat back exhaust and ESL daughter board.
My problem is the car will die occasionally, for no apparent reason. If I'm travelling at speed when it happens I don't get any power at all (the engine is not firing) until is springs back to life. If it happens at a junction, the engine will die and not start again until I'm on my 4th or fifth attempt. It just dies!
So far, I have checked and cleaned the MAF, TPS and Idle control valve, and run the onboard diagnostics (which doesn't report any faults, despite the engine light coming on when the motor dies).
Anyone got any ideas?
Edited to add that the problem always happens at low rpm (less than 3k) and when I'm just pootling about (not on boost).
Last edited by RedScoob; 05 March 2013 at 05:02 PM .
05 March 2013, 05:23 PM
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if its not logging a fault its probably simple maybe an air leak ?
05 March 2013, 05:38 PM
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Possibly, thanks.
I'll check for leaks in the morning and see what I can find...
Any other ideas?
05 March 2013, 06:03 PM
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05 March 2013, 06:37 PM
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Last edited by gretts; 05 March 2013 at 06:40 PM .
05 March 2013, 06:39 PM
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Wouldn't the camshaft sensor throw an error?
05 March 2013, 06:41 PM
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edited cos i was wrong..this would cause lazy start
05 March 2013, 06:52 PM
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No worries. If I can narrow it down it will help so much with fault finding. These inconsistent "bugs" can be a nightmare to find...
05 March 2013, 07:35 PM
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Quote:
Originally Posted by
RedScoob
Wouldn't the camshaft sensor throw an error?
No, mine was temperamental for quite some time before it threw out an error code.
05 March 2013, 07:38 PM
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Interesting. I'll have to look into it. Are there any diagnostic tests that you can do with a cam sensor?
05 March 2013, 07:46 PM
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i had similar on my v3 ra - it was a faulty maf - replaced and car was back to normal
05 March 2013, 08:14 PM
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Thanks, I'll take a look at that as well. Would that show up if I disconnected it while running?
05 March 2013, 09:01 PM
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Check the conection at the fuel pump mate,they some times start to burn out at the plug conection where it goes into the sender
05 March 2013, 09:39 PM
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Thanks mate. That's an easy one. I really hope it's that!
06 March 2013, 03:01 PM
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Yup, mine was a partially melted fuel pump electrical connector.
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