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Hello minormod.. 

I bought a engine management book, it said .. 'car fuel press is equivalent to human blood pressure' if not at the rite pressure.. it cannot function well.. :proud:


So I installed walbro fuel pump & installed fuel pressure regulator.. during dyno tunning at Viswork, the tuner confirmed my fuel pressure is good and doesn't drop at high rpm...


So in yr case, i'm wondering .. how u going to verify that the fuel pressure is not dropping at the high rpm or sudden acceleration. 


I have no regrets getting a presure regulator :driver:


U also said u changed to cold plug ? what plug you using? iriduim plug ? ik 16 or ik 20 .... ?


hope these info helps..




Hmm... That's true also... Honestly speaking i don't know. Haha... I tried ik20 and ik22. Now the problem is kinda solved and I used back ik20.


The tuner re-tuned for me and retarded the ignition timing and the problem is solved now. But it's still knocking but it is because whenever the AT gearbox shifts up, the boost spiked to .7 bar. Don't know why... I installed the unichip turbo module to control a boost solenoid, I'm going to adjust the wastegate spring to lower the pressure and regulate the boost using the solenoid fully.

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