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KennyJ

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Posts posted by KennyJ

  3. High idle + misfire dilemma

    in G4x

    Posted

    its very likely a bunch of issues , the 12.6 afr might be a dead time issue , or a bad synct trigger causing you to have very high advance on idle , which causes misfires, which you solve by going extremely rich

    check the mechanic side of things , do a smoke test on the intake etc , sync your timing , verify all data in the ecu , its all fixable , dont just throw parts at it

    and about the injectors , most factory subaru's have pressure leaks around the injectors when there is no fuel pressure pushing the injectors down

  4. Ignitions burning

    in Link G4

    Posted

    log the system voltage and the dwell time , should become obvious very fast if it does.

    practically i would assume there's a bad ground on the engine causing the ecu voltage to read lower

    do some basic voltage drops test on powers and ground while the engine is running (and even out the dwell table temporarely to stop your coils from melting)

  5. Golf mk2 Link Atom Trigger Problem

    in G4+

    Posted

    hall or reluctor ?

    sound like something is overheating indeed , check in the F12 menu at the trigger tab if you still get a correct sig ,

     

    only thing i've ever seen act up where some spark related components so it would check if you're still getting correct trigger sig when its not starting
    if its spark related i would start by checking dwell times

  6. S15 Silvia SR20 Engine Not Starting

    in G4x

    Posted

    confirm your cas is inserted correct into the slot , they can be teeth off.

    also i've had cars in the past which did run on stock ecu and didnt run on a Link due to the signal of the cas being sloppy. Replacing the cas is an option , replacing the disc in the cas also works but thats more of a bandaid

  9. Group N style Antilag/Cyclic idle.

    in G4x

    Posted

    yes when you're opening the throttle tps is no longer 0% and dependent on what you have setup it will go into "driving" (thats why i used the idle ignition to tamper it down) you may find the car feels like the throttle is stuck when driving , some really low numbers in vacuum will solve that

    please note i'm doing competition rally cars , not street cars 

  11. Group N style Antilag/Cyclic idle.

    in G4x

    Posted

    whats the point of the setup with the screw?

    i mostly set up cars with manual throttle bodys and i always crack open the throttle a bit with the factory bolt (rpm on idle +-4000 rpm)
    reset tps 0-100 point 
    activate ignition idle map with value somewhere between -5° and -25° so idle is at 1200-1300 rpm and go from there

    that way there plenty of fresh air to make the AL agressive enough

    AL activates with rpm and Tps % and a DI , 

    that way you dont have to alter anything under the bonnet and the car drives nice

  12. G4X N300 random spark when key on

    in G4x

    Posted

    The random fire happened again yesterday

    turned the key on , heard a pop under the bonnet , went to start the engine , ran on 5 cilinder for few seconds then went back to 6 in a few seconds

    i assume fired with exhaust valve open causing a lifter to extend ? its was low on compression on a cilinder when cranking too

  15. G4X N300 random spark when key on

    in G4x

    Posted

    Hi,
    issue 1:
    -i got a RB25det with a N300x plugin ecu.
    sometimes when i do a key on it just fires one coil. i was working on the engine last week , had the intake pipe off. turned the key on , heard a pop and saw my turbo spinning. Havent been able to recreate when i want to but it sometimes does.
    issue 2:
    -some months ago when i was setting it up i turned the coils a few times on and of eacht time with a ctrlS - keyoff-keyon and then i even heard pops in the intake , i havent tried it cause i dont want to pop a gasket out but that one is definitly recreatable

  16. G4X idle ignition table like G4+

    in WishList

    Posted

    i undertand but i had a lot of rpm points with extreme different ign angles so that impossible te recreate with the current way

    also my seconds axis was ECT to alter the idle point and thus the ign angle
    and yes i do know i can setup idle setpoint now but it just doesnt work the same

  17. G4X idle ignition table like G4+

    in WishList

    Posted

    i got great results on G4+ equipped engines who had extreme cams , for street use a steady idle is absolutely required and i got that with G4+ way of idle control

    i've tried and tried with G4X pid idle ignition and it just doesnt get there as steady as i could setup the manual table in the G4+

    could a choice of how to control be available ? i really miss my idle table

  18. Link G4X intermittent no power up at key on

    in G4x

    Posted

    i've had this on a lot of cars , with wire-ins and plug-ins allways on G4X

    i always update to the latest firmware

    i've had it occur when there was no laptop connected 100% sure

    last time was last week , killed the engine in traffic with a strong clutch, did a restart and the starter just spun the engine , no sign of life
    did another restart and fired right up

    i must say i've tried to recreate it and was unable to , they just randomly do it

    still havent got a customer complain but i'm quite sure they will be furious when they lose their precious 5 seconds on the rally stage

     

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