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Hi

Hoping someone can advise me on the issues we are experiencing with our 61 plate Giulietta 2.0 diesel.

A couple of months ago when it had rained heavily I drove it through some standing water which caused the engine management warning light to come. Read the fault code which was oil pressure sensor/circuit fault. Checked oil level which was fine and a couple of days later before I'd had a chance to investigate further the warning light went off. The car had driven fine the whole time so I assumed the warning was from wet connector which had eventually dried out. As this garage has messed up about to the car home and then to a turbo specialis

Everything was fine with the car til a couple of weeks ago when it started to lose power after a motorway run and the engine cut out. The car was recovered and found to be low on oil. The garage we took it too didn't do anything with it for 3 days then put some oil in and tried to start it. First it wouldn't turnover, later on it turned over but wouldn't start, eventually it started but when driven it was down on power. A diagnostic showed a fault with the crankshaft sensor which was changed but didn't fix the lack of power. As the garage has messed up around we took the car home and consulted a mechanic family friend who recommended getting the turbo checked. On the way to the turbo garage the car cut out twice, once on a hill and once on flat ground, both times an oil pressure warning appeared on the dash but after restarting the warning disappeared. Turbo garage found no fault with the turbo but when we collected the car the engine management light came on, which hadn't happened until that point. A diagnostic gabe codes P0340-62 camshaft sensor and P0135-13 upstream lambda sensor. We attempted to drive the car back front the turbo garage and on the way back smoke started to appear from the exhaust and the power dropped further until the car cut out and wouldn't restart.

Has anyone out there come across something like this before and have any advice on how fix this?

A relative has suggested it could be an issue with the timing.

Any advice would be gratefully received.

Steve Robinson
 

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Don't start throwing parts at it, that's a losing game.

How low was the oil when the engine cut out?

Anyway you need proper diagnostics being done, it could be a timing issue, could be the engine seized from being low on oil, could be the camshaft sensor or wiring. Low oil pressure warnings are normal when the engine stalls, but stalling isn't normal.

What colour smoke from the exhaust?
 

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It doesn't explain the camshaft error but I wonder if that dive into water has damaged/disturbed the lambda sensor or it's wiring. I'm not sure what would and what wouldn't be protected by the undertray ?

 
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