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Found 9 results

  1. I have a modified Mini R53 engine (aftermarket Thumper TPR2 head, TVS 900 supercharger and Schrick Cam) for which I recently had a G4+ installed. For reference, additionally to the ECU the following components were also installed prio to the tune: AEM X-Series Breitband UEGO AFR wideband controller 30-0300A CatCams 469 cam 550 injectors smaller SC pulley (60mm, coming from 70mm) The car was running fine with the OEM ECU and previous parts. The tune it got on the G4+ + having the new parts installed obviously helped it a lot and it is also running well overall and I am really happy so far, BUT the way the engine now comes back to idle after coming off the throttle is quite odd IMHO. IDLE Questions The following idle issues occur (please bear with me as I am firstly a noob to ECU tuning altogether and my technical/engineering background is limited - so basically some of the worst credentials to be doing a deep dive into this whole topic in general): When coming off higher engine loads (throttle position usually > 50% & always > 3,000 RPM) and letting the engine "run out" (throttle position = 0) idle rpm drops well under 1,000rpm and the engine almost dies/stalls (EML light shortrly lights up as when it stalls). It then feels like it tries to counteract that by reving up shortly with a short "blip" up to 2.000 rpm. The engine/ECU keeps doing that over and over again if I let it. When @ < 3,000rpms and laying off the thottle it only slightly dips under 1,000rpm and then also only slightly goes up as above but only once and only up to about 1.200rpm - and then is stops doing it (as opposed to the above described behaviour). With this I could live - the afore mentioned issue #1 is a real pain though... When in lower rpms (<3,000rpm) and during mellow driving / cruising and changing gears and as soon as I lay off the throttle, the rpms shortly "blip" up or hover before I change into another gear. I've tried looking at idle control but can't seem to find any anomalies. Could it be realted to the wideband sensor/controler? (.pclr file and log attached for reference) Knock Count question Also, I've gotten a global knock count of 10 on my last logged drive (including spirited revving up to the limiter) Is this something to worry about or can I disregard this? I'm told these knocks can be disregarded - if so, the only question is how can I tell when it's becoming critical? For me personally, any number > 5 in my global knock count after a short drive is critical or am I being to picky about it? Log 2019-05-6 8;39;17 pm.llg Thank you in advance for any input you might have on how I could get this sorted out (specially the above mentioned idle issues) Cheers
  2. Godzilla34

    Sr20det Stalling

    Hey guys Im running a Link4 G plus For some reason my s15 sr20det stalls straight after starting it. Was running mint and suddely happended out of nowhere. Few attempts later i get an fault code, 17 which is " AN V3 at GND" (Map sensor) Contacted Link techicnal support and they pretty much tried to find the problem thru teamviewer with my laptop plugged in, They deleted the error code but the problem is still there. The car keeps stalling. Any ideas on what it could be? I've tried adjusting the idle control screw and no luck.
  3. hi, just recently purchased, g4 link plugin for my evo4 , everything else running well, just the part during the AC kicked in , and disengage. the rpm will drop till 4xx rpm. Even without the AC on, just slightly press the throttle, and let go, the rpm also will drop .. i would apperciate if i can get any pointers on my settings. here i attach my PCL . and Log thanks in advance! EVO SAVE.pclr evo 4.llg
  4. Good morning. There is a vibration problem when idling, so I leave a message. The vehicle is 06 WRX STi Symptom. I feel the vibration of the idling increases as the engine gets hot. I am not a professional tuner, but the prescription I felt was good is... 1. Adjust idling air-fuel ratio from 14.7 to 14.0 2. adjust idling target rpms upwards from the normal temperature. 3. Change the engine fan rotation temperature from 93 degrees to 90 degrees (this method will make the oil temperature appear to be supercooled on the DEFI oil gauge, which is installed at oil pressure switch instead) I am currently using a closed loop idle E-throttle, but I can not remember the idea of catching vibration problems ... Please let me know your various know-how Thank you.
  5. Hi folks. First time Link user here and ive had no issues tuning with it so far. Trying to polish up the details now but i'm really struggling to get the closed loop idle control working after so many attempts. 'Idle status' always shows 'speed NOT selected' The ethrottle target is always 'table 1' surely this should change to ethrottle target at some point? The ethrottle target table 1 is set to '0' at closed throttle and base idle position is '2.5' to give an idle speed of 1k rpm. No amount of increasing or reducing the error by altering the idle setpoint will make it respond or 'control' All it will do is perform a % increase when the coolat fan comes on, and it jumps to this setting with no issues. How does it know whether or not to look at table 1 in an idle condition? Would uploading a short log file help work out whats going on or are there specific settings i should check? The help file doesnt have a lot of detail on this topic. Cheers!
  6. Hi All, I have an issue where the engine fan step seems to be always active regardless on weather engine fan 1 or 2 are on. I noticed when the engine fans came on the idle dipped quite low and nearly stalled so I adjusted the engine fan step while they were off and noticed the engine speed changing.. this should obviously not be the case.. is there anything I'm missing? I am using the latest software and firmware, the ecu is a plugin WRXLink 3-4
  7. Yes im back again requesting more info, Can i please ask the specific ethrottle operation in regards to an engine returning to idle and how the base throttle plate position is calculated. Is it taking the ethrottle target table setting and adding it to the base idle position? My problem is i can generate a fairly stable idle with closed loop isc with the ethrottle and gratuitous use of idle ignition control but if the engine is revved the base position generates a stall as its too low, If it is a small say 300 rpm rev the throttle plate does not drop back as low as it does from a big rev watching it in the tp main setting. Prop gain and anti stall gain can be set anywhere from .5 their max (5 gain / 25 anti stall) and dont make a lick of diff. Setting my base idle target % high enough to stop a stall results in an idle way too high. When i ran a solenoid isc it seemed to drop to my set base pos then slowly drop down to the idle speed but this is different on the ethrottle settings. Any advice appreciated - again its a 50 year engine with a myriad of superchargers and modifications and different manufacturers parts so there is no baseline as such but it is 1.6 litres, 4 cyl and using a mini cooper r53 ethrottle body so all ethrottle body settings are r53 and the tbody tracks perfect. Thanks BR
  8. VE is definitely way different with alpha-n at idle rpm and AC on vs off, and short of a full 4D fuel table I don't see a supported method of working around it. This is the right trim to use, but it's locked to injector millis and thereby traditional fueling. In modeled alpha-n: AC turns on increasing demand.Engine goes lean with stall compensation via IAC solenoid.Engine dies.By adding 32.5% to my idle cells in a 4D fuel map I've worked around this, accomplishing stable lambda across AC state transitions; but this should be a supported use case. Additional context: http://forums.linkecu.com/index.php?/topic/7096-idle-with-accessories/
  9. I have a Seadoo GTX 260 iS. I installed a racing cam and ensured correct timing with engine and cam locked. Starting and WOT, the Jetski runs perfect. However, at idle it runs at 1000rpm when it should be about 1800. I was told the throttle open % may need to be increased at idle. How do I turn off the default idle % and set it manually thru G4? ...Then ensure its saved during future use?
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