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Peterfook

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  1. attached is my dyno chart for your references.... the final with highest boost level at 1.77 bar i forgot to take picture with AFR but boost level lower than it we have, you can see the AFR we put it super rich at 10+ .. if i am not mistaken during that that time it is still not fine tune, there are still minor knocking at high rev range at 6k till 8k rpm that is why we further retard timing till left 2 degree only (normally evo timing at full load high rev will be around 8-10 degree) take a look dave, one is the final result but forgot to put AFR graph in it, the another with AFR u can see is not fully tuned and lower boost level.. and the AFR is keep below 11 and there is also minor knock at high rev so the tuner further retard the timing till left 2 degree if i not wrong, typical evo if no knocking can go up till 8-10 degree at high rev range 6k-8k rpm...maybe my fuel problem my engine specs are below - stock evo head and intake with aftermarket hydraulic lifter , hks valve spring and hks 272 cams with hks pulleys -85.5 cp piston, eagle rods, stock crank stock oil pump with balancing shaft still intact ,acl bearings and ATI damper -tonka exhaust manifold with hybrid tdo5h 20g,apexi downpipe and apexi n1 cat back for got to mentioned, fuel pump is DW ,injector are 560cc evo 7 injector with sard regulator set at 3bar during idle.
  2. Dave, there is no trigger error, few things happen - fault code 20 which is caused by oem o2 sensor and heater >> solved - aircond issue caused by aged wiring >>solved - rpm limit like what simon say, i will just lower down boost level just to be save and not pushing the injector 100% duty cycle you are very experience dave, we actually running it very rich for safety at AFR below 11 for high boost, reason to do so is due to our octane quality at our country is far more worst than other country, my choice only have Shell and Petronas Ron97 however even with Ron97 , you can see differences in figure and tuning if you switch between these 2, our Ron97 is not like real Ron97 but i don't know why. Instead of AFR, the ignition are being retarded since i suffer to knocking when IAT is high, average IAT is over 56degree Celsius due to hot climate at my place. Even at 15psi, i would rather put AFR at below 12 for my own safety , i had twice the experience when i crack my piston that time when i lean it out at mid 12. Nvm, i will inform my tuner regard all the info given and see what we can do.
  3. for the rpm limit, seems like i gonna lower my boost and reduce injector duty cycle, but nevermind, i am happy to yield out good whp and torque figure with the g4+, will update once all problem solved.
  4. I will try the suggested solution, thank you simon.. and i hope the fault code gone too after turn off the factory o2...
  5. Thank you all for the reply, i hope can solve my problem soon... Simon, any suggestion to set the rpm limit in my current condition? is it possible i use igt cut instead of fuel cut to limit rpm? any risk to engine? or should i upgrade bigger injector or lower my fueling/boost level?
  6. New update... aircond problem solve.. the problem is due to aged wiring problem.. stock ecu no problem but link ecu sensitively sense it.. so now the problem is tje rpm limit issue at high boost and a problem i almost forget to mentioned.. a fault code 20... low voltage on ground and i dont know what it mean and how to solve
  7. Thank you very much sir, look forward for your reply.
  8. And for more detail, i input DI 1 as A/C request as written in manual, but the pullup resistor and on level stuff i really don't know how to deal with it, and when i on it, same thing happen mean the choke or isv wont stop bounce my rpm
  9. My ride is evo 1 and i built it actually mainly for daily driven. When come into choosing management, i get the link g4+ plug in hope to get everything going fine including aircond since like i mentioned just now, i built it for daily driven also. Along the way of installing process and dyno tuning process, everything running well except 2 problem really don't know how to solve. 1.) Aircond problem, the problem is that, when i turn on the aircond, the isv or iavc or choke keep on bounce my rpm between 1000-3000 rpm, even i adjusted it (actually not really know the exact way to adjust) , the frequency and i put the number as 0, it still keep on working and bounce my rpm. The isv or choke is a new unit and it works fine with my oem ecu. Worst thing is , even i off my aircond pclink, the rpm still keep on bouncing. I wonder how this can happen, is it because of CAN problem since my car is old and so does the wiring? 2.) RPM limit,this problem is quite nonsense i face since i am in this motorsport hobby. I already off the boost control in pclink and also the advance rpm limiter. The map and RPM limit are all set according to ECT. RPM limiter is set at 7200rpm at desire ECT .And i have an electronic boost controller to control boost. At low boost 1 bar or about 15 psi, the car run well at rpm cut and limit at 7200 rpm, when high boost at 25 psi, the car suddenly do not have any RPM limiter and we (tuner and i) over rev the car till 9000rpm and we are shocked. and we try again, same thing happen, switch back to low boost 1 bar, everything is fine. I wonder what cause this, the only thing we done before high boost is re adjust the map limiter from 235kpa to 300kpa (so it allow us to boost over 1.35 bar) .. Really cant find any solution by ourselves and cant drive it safely and daily on street since no aircond (my country always rain) and no RPM limiter when high boost, seriously need help. I appreciate help from all people, Thank you and i attached my pclr file so you can take a look into what is wrong. evo 3 dyno 4 390 hp 447nm.pclr
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