Jump to content

2.0L_turbo

Members
 View Profile  See their activity

  • Posts

    91

  • Joined

  • Last visited

  • Days Won

    1

 Content Type 

Posts posted by 2.0L_turbo

  1. how to use quick trim?

    in G4x

    Posted

    14 hours ago, Adamw said:

    That probably means you havent logged MGP.  

    Would you be able to help me set that up properly? What I am trying to do is at around -6:55 in this log I test to see if my tps is reading WOT which it was but when I do this the car stays pretty lean around 13 afr and I am trying to get that to where it should be somewhere around 11.2-11.5. The page up method works but I do not like how I have now lost the shape of my fuel map and it is now all jagged. The car seems decently happy at cruising speeds but under load its still very sluggish but I believe thats because its running pretty lean on load. 

     

    here is the map and the log, im not sure whats up with the wheel speed its kinda all over the place atm.

     

    https://drive.google.com/file/d/13IzSfTy5kCw58Ytu0hBAznndEZOJE18u/view?usp=sharing

    https://drive.google.com/file/d/1oOQqFdbQhrQC3LKqRl32PL96dk7xwuKu/view?usp=sharing

     

    any help with this will greatly appreciated. 

  2. how to use quick trim?

    in G4x

    Posted

    11 minutes ago, Adamw said:

    If your lambda target table has the same axes parameters as your main fuel table then you don’t need to specify the load value.  You only need to use that if for example your fuel table uses TPS for load but MAP for the afr target.  
     

    Have a look at this video from about 6:00 for an example of using quick trim: https://1drv.ms/v/s!AiYbYlZQuRHPszwGHNUSbvWjCT-D 

    oh ok so mine uses mgp for the fuel  table and map for the lambda target. so how would I change that so the two use the same axis? I was able to change the fuel table to map to match but then I could not see the cross hair for the table anymore.

  3. how to use quick trim?

    in G4x

    Posted

    so as the title says how do you properly use quick trim? I read the help file in the ecu however it looks out dated compared to what mine is showing me.  In the help file it shows only 2 adjustable values being target lambda and measured lambda which I fully understand. however mine also has AFR target load value. so in that box do I just leave it alone at the 14.5 map psi that it is defaulted at and change the measured and target lambda or do I look at my map at that part in the log and input that then change the lambda values?

     

    hope that all makes sense.

  5. Crazy high Iat, bad sensor?

    in G4x

    Posted

    hey guys so a while ago I finally got my car swapped over to speed density, after doing some logs I seen the Iat temps were super high at 190-210 at times. I first thought maybe these were accurate as I had a rather large turbo trying to get cooled by a stock sidemount intercooler that is pretty pathetically small so I decided to get my front mount intercooler put on. well I finally got the car back and after doing some logs nothing changed at all. The sensor I used was a Holley 534-20, and I have my calibration set to delphi ac iat. Not sure if maybe I have the wrong calibration but there is definitely no way my Iat is actually at 200 degrees now. Other then buying a new sensor ( because I already will be doing that, going to get a rife fast response ) what are some other things I could check or test to get this fixed? pics of new intercooler for reference. 

     

    https://drive.google.com/file/d/1TerVgMShPJ9zGPinOp_I3gE1umEXSiIn/view?usp=sharing

    https://drive.google.com/file/d/1KMDXLlbLszbSeWfUuMejvLda-ewV3pLt/view?usp=sharing

     

    and here is the map and log ( I know it needs a lot of work but with the issue im having its fighting me )

     

    https://drive.google.com/file/d/1M_2lBNG7AsoRl1Y33M0z2vdfBct3zKHH/view?usp=sharing

    https://drive.google.com/file/d/1RwfGxW-Yk6nGvCedmJDEt3xeJ_nvIs8H/view?usp=sharing

     

    thanks for any and all help guys !

  6. Co2 boost control

    in WishList

    Posted

    8 hours ago, Adamw said:

    Yep it’s been in there a while now.  There is a set up guide and plumbing diagram in the help file.  

    Cool I tried taking a look the other night but didn't have much time to browse the help file. Glad to see that in there now when I get my big turbo on the car I can really have some fun

  7. Co2 boost control

    in WishList

    Posted

    On 8/4/2021 at 9:15 PM, Vaughan said:

    Dual solenoid Dome pressure boost control will be in the next GX release.

    Hey Vaughan, been looking online but can't seem to find any info. Has this been implemented yet for g4x ECU's I would like to run this when I switch over to my large turbo setup. 

  8. Car runs only with starting fluid

    in G4x

    Posted

    1 hour ago, Adamw said:

    Incorrect.  Many 3 wire coils are dumb coils. Including most Ford and BMW.  The 3rd wire is typically the HV ground for the secondary winding.  The correct test is to measure resistance as the OP already did.  A smart coil will have resistance >300ohm.  A dumb coil will have resistance below 2ohm.  

    interesting my bad everything I have ever read has stated what I mentioned and from personal experience has it never done me wrong but if their is a correct way of handling this Id trust your judgment. 

  10. How to wire Mitsubishi DBW Throttle body?

    in G4x

    Posted

    Hey everyone like the title says I am looking for some help on how to wire up a Mitsubishi Dbw throttle body. The one I found is a Mitsubishi eclipse 3.8L 65mm. I know that this throttle body is wired the exact same as a Evo X as it is an upgrade for those cars so the wiring I have found inside the help files in link show this .

     

    https://drive.google.com/file/d/1W3bz73K_oGbxPyAjpmpPZTmRYVhMmO5H/view?usp=sharing

    and for the throttle pedal I found this 

    https://drive.google.com/file/d/1QXfTVLiGU2umtpwyJKgKpesOQY1zreVn/view?usp=sharing

     

    so here is how I am understanding this gets wired but I know I am missing a lot of it so if you can help me fill in the blanks I would greatly appreciate it, I do understand that signal 1 and 2 go to auxiliary channels on the ecu but I have seen some conflicting info on the forums where people were splicing those in with other wires so I just want to confirm exactly how it goes.

     

    https://drive.google.com/file/d/1hjYD2MsMQPps36HHOt0zjfl-v7OpNe2K/view?usp=sharing

     

  13. wideband reads lean constantly

    in G4x

    Posted

    well the mystery issue has finally been solved it was in fact much to high of a master fuel level, the master fuel was set at 17 as that is where the car liked to start when it had the bad o2 sensor in the car. However after changing the sensor the car was now able to start with only changing the master fuel setting back down to 8. Now finally the car is responding to changes in the fuel map as it should and we have already taken the car around and began tuning its drivability but only under no heavy load, I am saving that for my tuner to handle I just need it drivable to get it to him safely. 

     

    A massive thank you to everyone who has helped me on this, I love this community here and will always be a link ecu supporter and fan. I even managed to talk my buddy into getting a link for his 1990 eagle talon and we cannot wait to start getting that all set up!

  14. wideband reads lean constantly

    in G4x

    Posted

    1 minute ago, koracing said:

    The Toyota 3SGTE base map (ST205X) is a 2.0L motor with 540cc injectors from the factory (Denso low impedance with resistor pack) and it's using a 9ms master fuel number and about 28-30 VE at idle on the fuel table.  That might be a closer starting point for you.  To figure out if your dead time is way off you'll have to see if a 10% change on the VE table or AFR target actually results in a 10% change in lambda.  If it does not then the deadtimes are likely off.

    do you mind if I send you a pm?

  15. wideband reads lean constantly

    in G4x

    Posted

    Just now, koracing said:

    I don't think I said anything about the warmup enrichment table.  Enrichment is just another way of saying amount of fuel - I wasn't referring to a specific table.  What size are you injectors - and I'm assuming it's a 2.0L motor?  What fuel pressure are you seeing at idle?

    My bad I figured when you said " enrichment adjustment at idle" you were referring to the warmup enrichment table, that's my mistake. But sadly as stated above I could pull nearly all the fuel out of it in the area where it idled and no change in the AFR. The injectors are fuel injector clinic 550cc low impedance with resistor packs, you are correct the motor is a 2.0L still and  base fuel pressure with the vac disconnected is 43.5psi I just put on my FPR the other night and set it.

  16. wideband reads lean constantly

    in G4x

    Posted

    ok I tried a few more sensors and still the same result being too rich like my other sensor were saying. I now believe when its reading .675 - .710 it is accurate the cars exhaust also smells heavily of fuel. Here is a tune file and a short log I just took can anyone please take a look and see if you spot anything funny. I still feel like maybe the injector dead time is wrong and do not know if that could cause this, my reasoning for this is while the engine was running I changed the master fuel down. When I did this I was able to start seeing big changes in the afr, I was able to get it to 1.0 but master fuel had to be set at 5ms to achieve that. I did not save that to the ecu and then reset it back to 17 where the car liked to cold start.  I also tried to adjust the warmup enrichment table like @koracing suggested and it did not seem to do anything at all.

    I appreciate the help on this everyone

    https://drive.google.com/file/d/1LKwgedYwEwDHlaAg6fKSFMobinIS8lXt/view?usp=sharing

    https://drive.google.com/file/d/168lZ9tgtUlGYP22V6mVuRwWZI9MTPBh8/view?usp=sharing

  17. wideband reads lean constantly

    in G4x

    Posted

    2 hours ago, Adamw said:

    Right now the only data you have is two sensors that read differently.  There is not enough data to tell you if one is correct, which one is correct, or if they are both wrong.  They only way you can determine that is with a known good reference.  This may be a new sensor or for example your tuners dyno wideband.  

    Sounds good Adam, I will see if I can track down a known good sensor and if not I will get one on order. 

  18. wideband reads lean constantly

    in G4x

    Posted

    1 minute ago, Adamw said:

    If it has the correct plug on it then it is a lsu4.9.  The calibration is done by a resistor inside the connector, the calibration is done by Bosch so the sensors are interchangeable without any end user calibration 

    Interesting so then what would cause it to now be reading rich and barely changing to removing 20% fuel? It was hovering around .675 lambda, then when I removed the fuel could get it to see  .710 lambda. Just scared to remove any more incase it's not reading properly and I really lean it out. 

     

     

  19. wideband reads lean constantly

    in G4x

    Posted

    @Adamw

    do you know of any ways of finding out the calibration for a VW LSU 4.9 Lambda sensor? The numbers on the sensor are 03G 906 262 A and 686 07 9 06

     

    when I try this sensor it says I am running very rich which I can believe and if I remove fuel it does show up on the gauge but I need to go down to 10% or more to get any drastic change and I feel like the sensors calibration is just not correct compared to the sensor aem supplies. I will be ordering a new sensor as I feel this pretty much confirms a dead sensor but it would be cool to know if we can get these to work as well.

  20. wideband reads lean constantly

    in G4x

    Posted

    On 5/23/2022 at 4:21 AM, Adamw said:

    To confirm the voltage calibration try unplugging the sensor, Im pretty sure the AEM controllers show 1.00 Lambda with the sensor unplugged.  If that looks ok then I would suspect the sensor or possibly an air leak somewhere.   

    I moved the sensor today from the where it was right before the hole in the exhaust, I put it where the factor narrow band sensor would go on the turbo elbow so it should read as accurate as possible. Unfortunately this made no change it still reads the exact same numbers. I tried unplugging the sensor as you asked and it does in fact read 1.00. I think this would confirm my suspicions that the sensor is dead but before I go out and spend 200$ on a new sensor, is there any other things I can try and is is safe to try and use sensor clean or some other product to maybe clean this thing ? when I took it out it was covered in soot so I know its running super rich.

  22. wideband reads lean constantly

    in G4x

    Posted

    8 hours ago, Adamw said:

    To confirm the voltage calibration try unplugging the sensor, Im pretty sure the AEM controllers show 1.00 Lambda with the sensor unplugged.  If that looks ok then I would suspect the sensor or possibly an air leak somewhere.   

    ok will do, I do know that there is a hole in the exhaust just a little before the sensor on a flex pipe. I may try moving the sensor to the factory o2 location and see if the issue goes away after I try unplugging the sensor. If not I will try a new sensor and report back.

  23. wideband reads lean constantly

    in G4x

    Posted

    got another one for ya guys,

     

    got my wideband working in link now having an interesting issue, when I take the car for a drive the wideband reads lean constantly and sends the same signal to link with the lambda reading about 1.262. I took a small drive around the block a few times for around 10 or so mins to get a log to check my mixture map with. the mixture map then told me I was running lean ( already figured that ) so it added fuel in those areas. We made the changes and went for another spin around the block only this time the car was very hesitant and made no power. the numbers in the fuel table were originally around 34 in fuel table 1 and with the changes the mixture map made it bumped it into low 40s. when I make manual adjustments and put it back to 34 it runs a lot better. It almost feels like the fuel map percentage is backwards as I need to lower the number to even read on my wideband.

     

    would this indicate that I have a failing wideband sensor, or would incorrect injector dead times cause this?Capture.thumb.PNG.3e4388467f9028c98697578d812eb238.PNG

×
×
  • Create New...