You need to replace your MAF, MAP and boost control sensors. Dreamscience have a sensor pack. I take it you have an Induction kit fitted?? If so this causes the MAF sensor to become dirty very quickly and the 'shakes' is an overfuelling state. Hope this helps. Also if you run a diagnostic you will prob find Trbocharger under/overboost warning, this is normal when the sensors are dirty/damaged
hmm, this is what I was thinking but I have uprated IC (6x bigger the original) so I am not sure... What you mean about "too little backpreassure"? Is it not enough to remove KAM?
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You need to replace your MAF, MAP and boost control sensors. Dreamscience have a sensor pack. I take it you have an Induction kit fitted?? If so this causes the MAF sensor to become dirty very quickly and the 'shakes' is an overfuelling state. Hope this helps. Also if you run a diagnostic you will prob find Trbocharger under/overboost warning, this is normal when the sensors are dirty/damaged
Davidgohan1 5 months ago
had it go on mine sounds kool but no power
rustyframe 7 months ago
what was the cause of the problem?
Rfactor08 2 years ago
boost control solenoid
evlarad 2 years ago
have u sorted out your problem?
Rfactor08 2 years ago
yes
evlarad 2 years ago
I tried and not helped....
I see the problem definitely as map problem - overboost problem.
evlarad 2 years ago
seems you missed what I said before :-)
from previous posts:
...I have uprated IC (6x bigger the original...
...Size of IC is huge and it is alloy...
...The IC is not after-market - I wanted to say only it is not any known brand made for focus ST but it is universal IC.
Also I had the car measured on RR (315 HP/ 470NM) and the inlet temp was just almost same as ambient so it means that IC is working as it should...
anyway thanks for ur comments and if you have any other ideas pls shoot it ;-)
evlarad 2 years ago
The IC is not after-market IC but I don't believe it may cause so big problem in "cold weather" like 16C. Size of IC is huge and it is alloy...
Currenty I am running ModB and at the end of week it will be ModC or ModB+
Also if I don't have any error codes what diagnostic can find?
evlarad 2 years ago
I also tried to spray water on IC but it did not help...
Is there any marginal difference between quality of IC?
evlarad 2 years ago
Actually I have full exhaust system from mongoose, so 3" downpipe, 3" deacat + cat back.
This test was done during night, temp 16C and it happened 1 out of 10 tries.
evlarad 2 years ago
hmm, this is what I was thinking but I have uprated IC (6x bigger the original) so I am not sure... What you mean about "too little backpreassure"? Is it not enough to remove KAM?
evlarad 2 years ago
I did not, and all hoses checked and non released...
Problem is not permanent, it is just randomly appearing... probably boost control solenoid? ...
evlarad 2 years ago
did u fix it now?
i think one of hoses go out
evildrag 2 years ago