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Sun 3 Jun 2012 09:43

citroen synergie 2.0 hdi 16 v. 2001 plate. - wont start when hot - raysheppard

hi ,i have a 2.0 hdi 16 v engine code rhw . it has a problem when its hot ,it wont start .i can start it if i disconnect the tempeture sender unit cable .this car starts every time when cold . i have change the temp sender unit with a genuine unit from citroen . i had a vechicle elec guy have a look and he said it must be an ecu fault.can any one give me any advice ,thanks ray.

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Mon 4 Jun 2012 00:08

citroen synergie 2.0 hdi 16 v. 2001 plate. - wont start when hot - mickeybo

On your synergie the (ect) engine coolant tempature sensor has a 5v feed via ecu pin no 46 to ect sensor then through sensor to ect pin no45 earth if checking at cold 20c cold voltage should read approx 3.6v at 20c ecu pin no 45Hth Regards Mickeybo

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Mon 4 Jun 2012 09:58

citroen synergie 2.0 hdi 16 v. 2001 plate. - wont start when hot - raysheppard

hi mickybo ,thanks for your reply .its will be helpful for the elec guy ,but could there be a fuse gone .also is the fault in the ecu .i can buy a recon for £150 decoded .will i be able to fit it or will it need to be configurated to the car ,sorry for all the questions ,thanks again .ray . raysheppard1954@aol.com

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Mon 11 Jun 2012 08:47

citroen synergie 2.0 hdi 16 v. 2001 plate. - wont start when hot - raysheppard

hi , i have changed the cam sensor on the rocker cover and it seems to start now when its hot.

can any one tell me how to check if the cam sensor is faulty also do they just fail or have intermittent fault ..and the gap when you set it up,ive been told it has to be as close to the cam pulley .thanks ray.

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