My MCS seems to be lacking in acceleration power when putting my foot down in low revs. 1st and 2nd seem to be ok but for example...if I am cruising at 3000rpm then floor it in 3rd... it seems to take a long time before I can feel that SC power/boost. I thought that with the SC the power should be there instantly, but I just don't seem to be getting it...or at least not all ?!
I have recently changed the Bypass valve to the DT valve which helped but not as much as I thought it would.
Also, I live in Japan and its getting very hot and humid here...would this have an effect on the performance?
looking for any feedback and pointers on where to look/ start to find what is resulting in this sluggish power!
Have you done a reset on the ECM disconect the battery neg then poss leave it for 20 to 30 min re one t it poss then neg.
I would go over it and check your intercooler boots and bypass valve hose is ok, check all your vacuum hoses are ok to you map sensor and fuel pressure regulator.
Check your fuel pressure and regulator are ok
Have you got any mods fitted ?
Was the car ok before you fitted the bypass valve.
It's always worth checking the air filter and spark plugs.
A good fuel system cleaner is always worth while I use bg44k it's very good if you can get hold of it.
I would also replace your fuel filter. Even if it's not the problem it's well worth doing
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