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Omega Help Area => Omega General Help => Topic started by: otomega25 on 12 August 2015, 06:55:50

Title: y22dth-engine dies(no error code) then start's normally ?
Post by: otomega25 on 12 August 2015, 06:55:50
Hello mates ! the last week it was a nightmare for me... my omega y22dth have a unusual engine working : this morning i.ve start the engine work fine until the engine heats up 80 gr.C then engine stops with no sign, no error code, then he starts normally drive normally until he thinks it's momment to stop.. is not constant behaivor... i.ve cheked fuses, egr, vacuum hoses, i was change the fuel filter...
Title: Re: y22dth-engine dies(no error code) then start's normally ?
Post by: otomega25 on 17 August 2015, 20:15:10
Quote from: otomega25 on 12 August 2015, 06:55:50
Hello mates ! the last week it was a nightmare for me... my omega y22dth have a unusual engine working : this morning i.ve start the engine work fine until the engine heats up 80 gr.C then engine stops with no sign, no error code, then he starts normally drive normally until he thinks it's momment to stop.. is not constant behaivor... i.ve cheked fuses, egr, vacuum hoses, i was change the fuel filter...
nothing change until now... rarely behaivor but still problems, i think the wires from injection pump are in short from engine vibrations somewhare... this is most plausible situation...
Title: Re: y22dth-engine dies(no error code) then start's normally ?
Post by: VXL V6 on 17 August 2015, 20:30:25
Sounds like the common EDC problem on the VP44 pump to me.
Title: Re: y22dth-engine dies(no error code) then start's normally ?
Post by: otomega25 on 24 August 2015, 16:14:21
this is the common behaivor on this type of pumps ? when they fail.. ? drives normally no more shocks but still little rpm fluctuation, i will wash the rezervoir and all diesel circuit htese days...
Title: Re: y22dth-engine dies(no error code) then start's normally ?
Post by: Gaffers on 24 August 2015, 16:26:55
The fact it happens at 80C would make me suspect EGR though :-\
Title: Re: y22dth-engine dies(no error code) then start's normally ?
Post by: otomega25 on 11 September 2015, 04:08:20
Hello again! i cleaned injection circuit with  Wynn's diesel purge- very very smooth engine work, nice acceleration. no more ugly noise when is cold, cleaned the tank- no much dirt but the problem apears again, my friends from Club Opel told me is little chances to be the 4 wires from the 2 sensors mounted on injection pump to short them to ground from here missing error code, i will buy a filter cartdridge with manual pump ( to eliminate air from injection circuit when i will make some repairs ) and take a look to those wires...
Title: Re: y22dth-engine dies(no error code) then start's normally ?
Post by: Marks DTM Calib on 11 September 2015, 16:40:15
Changed a few crank sensors on these with similar symptoms
Title: Re: y22dth-engine dies(no error code) then start's normally ?
Post by: Marks DTM Calib on 11 September 2015, 16:40:31
Quote from: Monsieur Guffer on 24 August 2015, 16:26:55
The fact it happens at 80C would make me suspect EGR though :-\

Eh....on a diesel? :(