2010 ssangyong actyon keeps lighting engin management light

The loss of fuel pressure does not necessarily mean an external leak. Your systems has a number of pressurised circuits. any check ball can leak and you will lose pressure.

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AC6213E ACDELCO
OX 133 D KNECHT
H \727/1 x MANN
L313 PURFLUX
64881 MAPCO

it has an auto tensioning device (A.K.A. spring loaded pulley) ... if its loose after you routed like it was before... the belt is TOO BIG!

SsangYong

for the easy solution download the pdf file

The symptoms you describe exactly match those I encountered a while ago with an Isuzu engined Vauxhall where the management system falsely detected an overboost condition.

I didn't do the repair but I understand the car was fitted with a new egr valve.
Sometime later a very similar set of symptoms were presented but in that case the crankshaft sensor was cutting out when the engine reached a fairly high temperature. Switching off and waiting a few minutes was all that was needed to restore performance for a while.

now you get wrench ADJ.

I had a similar issue while driving the car at about 70 - 90km/h. I also had horrendous vibrations. It ended up being the original trans fluid requiring changing to a more superior product than what they originally came out with. The car had done less than 50000km.