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namre

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Everything posted by namre

  1. namre

    Lambda 1 vs AEM wideband

    I have a lambda 1 analog input and also an aem wideband gauge. Two of them are showing different values up to 2:1 afr points sometimes. Car was tuned according to lambda 1. As we don't know if lambda 1 is oem narrowband or wideband is there a way to justify it from ecu or somewhere? I've seen values down to 9:1 on lambda 1 if there is a max/min for a band. If it's an oem sensor does it mean that car needs to retuned according to aem wideband? There are two censors on the pipeline. The upper is lambda 1 and the latter one is aem wideband. In ecu i was able to find just one lambda meaning that the other one is not wired to ecu.
  2. namre

    Lambda 1 vs AEM wideband

    sorry i couldn't quite follow. if it's linear then max 4.99 volts would mean 1.96 lambda which is huge. how can i use this info for calibration?
  3. namre

    Engine hesitation after retuning

    jackpot. it's also gone. i put the spot somewhat richer than it was. thanks
  4. namre

    Engine hesitation after retuning

    Hello, We have engine hesitation esp. at boost area after retuning. We checked the mechanical possibilities but could not find anything. The tuner says runtime values are ok at that stage. Here is the base map. Do you have any clue if there is any signal that this is about tuning? Thanks for your help. basemap.pclr
  5. namre

    Idle Problems

    I have strange idle behaviors. It seems normal under 1000 RPM but can you please help on the following issues? My idle target table and base positions are all set. However when I first start the car, idle speed control does not come active. Idle stays as the car has already warmed up. If I accelerate a bit then it starts to work. If I restart it this time it kicks in after a while. See log 1. Idle fluctuates at 1000 or above rpm. You can see at the second logs that TP is almost same but there is an RPM fluctuation. See log 2 Saying so, when ac clutch/request is on there is additional fluctuation. I am not sure if its connected to 2nd item. See log 3. Idle drops to 500 RPM when engine fan kicks in. See log 4. 1-idle_not_kicking_in.llg 2-fluctuation.llg 2-fluctuation2.llg 3-ac_fluctuation.llg 4-fanON.llg
  6. namre

    Idle Problems

    this is solved by turning tp/ap lock out to 1%. when I start to press the gas idle ignition closed automatically.
  7. namre

    Idle Problems

    update: after some research i decided to use idle ignition table at top. the issue was the older idle ignition table was correlated to ap% something and engine speed i guess. i reformatted it according to a 2d idle target error table as below. now it seems more stable. there are no dramatic drops in ac and engine fan. only handicap could be the rpm limit that needs to be 1400. so i need to start driving above that but that's the common way.
  8. namre

    Lambda 1 vs AEM wideband

    strange thing is that i see the lambda unit in runtime values rather than voltage. i was not able to change it. i think i cannot calibrate under these conditions.
  9. namre

    Engine hesitation after retuning

    yeah they were all lean due to wrong calibrated afr. now i will check the latest small era at 2nd gear from your point of view thanks.
  10. namre

    Lambda 1 vs AEM wideband

    one comment: i suppose gauges have down and upper limits. for example if it's 9:1 it would show 10:1 as a minimum. and after 18:1 it turns to "---" as far as i know. wouldn't it effect calibration?
  11. namre

    Engine hesitation after retuning

    update: my lambda values on the ecu was crap since calibration was wrong. could not find the correct values but we have retuned fuel according to gauge this time. most of the bucking went away and it's better now. so there were wrong afr values in ecu readings. now only in 2nd gear if you force to drive constantly at 2500 rpm there is a little bucking and i guess this is normal?
  12. namre

    Lambda 1 vs AEM wideband

    do you have the info on other calibration values in order to try? icouldnot find them online.
  13. namre

    Lambda 1 vs AEM wideband

    I dont know why but they are not matching. The closest values I got are when calibration is 0.685 and 1.235. I doubt this belongst to any product.
  14. namre

    Lambda 1 vs AEM wideband

    thanks for support. i will check when possible and let you know.
  15. namre

    Lambda 1 vs AEM wideband

    OK. that's a hard question for the reason i mentioned. but i strongly believe it's a 30-4100 most common one around. is there a document that i can check the calibration numbers for the other models in case i'm wrong?
  16. namre

    Lambda 1 vs AEM wideband

    thanks, my misunderstanding. back of the gauge was siliconed due to socket problem and it's on a very hard place to unplug. for an easier one is it ok to change calibration according to aem and check if it's almost matching with gauge?
  17. namre

    Lambda 1 vs AEM wideband

    Here is the base map. We have altered the tuning according to aem wide band gauge and it's much better now. I suppose lambda 1 connected to ecu is the oem lambda as it's always richer than aem. I also could not verify calibration settings of aem uego in ecu. I also wish aem wideband was wired but it doesn't seem so. basemap.pclr
  18. namre

    Idle Problems

    OK. I have closed IIC and zeroed base position table and started from adjusting e-throttle target. It seems better now. I didnot start IIC again since this is where things get complicated and unstable. I guess this is not a problem? Fluctuations happen over 1k rpm again. I believe this is also connected to my engine bucking problem at 2500 rpm. Deteriorating afr at this spot did not help. It might be mechanical due to lambda sensor or ethrottle or cams itself is all left maybe. I have two widebands, one is lambda sensor just after the turbo and the other one is aem wideband sensor on some 30cms after the lambda. These two vary too much sometimes up to 2 points. And I've realized today that my lambda buzzes so much at the rpm fluctuation stage (at the bucking phase as well). This can be seen from the logs. It's too sensitive. When I check the other gauge it seems more stable. So which one to trust? Tuning was done according to lambda naturally.
  19. namre

    Idle Problems

    Thanks. I have walked things through. About your last comment, I tried to disable ISC by deleting base position table but idle dropped to 500 rpm or so and stalled. I could not find how I can increase this without ISC. Can it be done by adjusting idle ignition table?
  20. namre

    Idle Problems

    Thanks for helpful comments. I will check these. For the moment: I have already calibrated TP but its still around 4-5% dont know why. I will try to put lock out above that. I have reduced to 900 rpm since it’s not fluctuating at that level. For idle up tables I have zeroed the ac stepper but still there is a small fluctuation. Maybe its related to other points you mentioned. About your second post, do you mean that The warm up enrichment should also be zero at 80 ect?
  21. namre

    Engine hesitation after retuning

    Is it a bad idea to adjust fuel or ignition table according to this specific spot in order to eliminate problem from most probably my cams (being stage 3)? i know this will hurt my afr. general question is that should the fuel and ignition tables have sequentially increasing or decreasing values all of the time? is it possible to have some unsequential jumps where for example afr is off target? thanks.
  22. namre

    Engine hesitation after retuning

    I will try it as soon as I have time. But as far as I recall there was no bucking at least was not noticeable this much. I tried to eliminate mechanics -changed the fuel pump and plugs but no luck. Would TPS calibration help?
  23. namre

    Engine hesitation after retuning

    I'm really confused. Ok my fuel pressure was a bit lower. I have corrected that one and problem at acceleration was decreased. I realized that hesitation at the low TP was not happening when the engine is cold/warm (say before flooring). But it starts appearing after flooring couple of times. So there is no hesitation at 100% TP, but there is hesitation after travelling (not before). If it was ignition it should appear at flooring as well in my opinion. We have checked the plugs/gap they were ok. Only remaining candidate might be fuel pump but then why its not happening at all circumstances then? That's why I tried to check tuning as well since this wasnt the picture before retuning. Totally stucked here.
  24. namre

    Engine hesitation after retuning

    Do you have any hint on whats happening in lower rpms? It happens when trying to stabilize the rpm but not on acceleration. Could it be also fuel related? This time AFR seems to be within the limits. lowboost.llg
  25. namre

    Engine hesitation after retuning

    Many thanks. I will check the fueling first. By EVC I meant that I have electronic valve controller (HKS) installed. So I have several boost modes. I am not sure according to which mode should I fill this table. Will it deteriorate the other modes for example? That's what I'm confused. Is it better to change it basically to open loop if that's already the case in practice?
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