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Talkwrench

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Talkwrench last won the day on June 18 2017

Talkwrench had the most liked content!

About Talkwrench

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    Advanced Member
  • Birthday 11/02/1980

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    Male
  • Location
    Lancashire, UK
  • Interests
    Welding, Machining, CAD/CAM

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  1. Talkwrench

    Thunder Wiring & fuel pump speed control Questions

    Time to dig up this old thread! Can't believe that was 2 years ago!!!! I suppose having children does that to a project. Thankfully I'm back at it and I can see the light at the end of the tunnel, I have now completed the mechanical build more or less, I have started the wiring loom and I now have some questions, @Scott I need to pick your brains and I know you like your Veedubs so hopefully you will know . I've looked over the wiring diagrams for the S4 and I have located the CAN wires at the OEM ECU, I intend to utilise the CAN bus to reduce the amount of additional wiring & inputs required, seems obvious but im assuming the OEM ECU needs to remain functional for this to work? What parameters does the B5 chassis send over CAN? this might help me identify which inputs the original ECU needs to see to maintain the CAN & ABS functions. Secondly, configuring the LINK to utilise the VVT functions of the R32 VR6, can I use the Audi 4.2 V8 cam control mode for this or will I have to select the user defined mode?
  2. Talkwrench

    CAN-EGT module

    Thanks very much Adam, I'll give this try and see if how I go.
  3. Talkwrench

    CAN-EGT module

    @Adamw I have just got hold of one of these units, any chance you could share the set up info as i did't receive any documentation with the unit. I was planning to add this to the same CAN channel as the Link CAN lambda module, whats the best way of achieving this? Thanks in advance.
  4. Talkwrench

    Rotary Engine VE tuning

    Hi CJ, thanks for the response, its really helped me see past the numbers and just try to tune the car. The previous log file only got up to 2000rpm as it was misfiring hence the really lean lambda numbers (wideband is a LINK CAN module so no real setup needed?), I've added a bunch of timing at the low load & RPM areas and the car is now a lot more lively! I've done some more fuel tuning this morning and I'm starting to get somewhere, even managed a cruise up and down the coast and it sounded epic Still not pushed it into boost yet but I'll keep refining the cruise areas and creep up into boost when i feel confident. At least I can take the car out now and start logging. Log 2017-07-16 2;02;32 pm.llg
  5. Talkwrench

    Rotary Engine VE tuning

    Updated PCLR file attached. Changed all the vac / boost hoses for hydraulic crimped JIC hoses and still no better, made all the suggested changes above to the config and it hasn't reduced the numbers in the VE table by much. I'm all out of ideas at this point, the car is hardly driveable. I'm still waiting on the mityvac to arrive to double check the sensor cals but tallies with the gauge in the line. I forgot to log the last attempt , I'll change plugs and try again tomorrow. Any more suggestions When setting the primary injector flow rate is this per injector or total primary flow???????? I have 2x 1000cc & 2x 1700cc FD3S TDX51R V1R2.2.pclr
  6. Talkwrench

    Rotary Engine VE tuning

    OK no worries, many thnaks for finding the time on a Sunday evening, im sure you had better things to do. Yes I have calibrated the triggers with a light using the instructions in the help file for rotary trigger calibration. My injectors are brand new injector dynamics and supplied from a reputable source so i've no doubts about there authenticity. I bought these injectors purely because they are trusted, matched and fully characterised and assumed this would make the tuning part a little easier, i do hope i don't have to qualify the injectors by measuring their output with a jug. Fuel pressure was set at 300kpa with no manifold reference connected and therefore shows lower due to the 1:1 reference. NASP line? I hadn't picked up on this and obviously a very good point, i'll check over the hoses tonight and make sure I haven't got anything loose, eveything is connected with AN fittings & hoses. I was reading up on the charge temp approximation last night and realised the table set at 100% probably wasn't helping, these must have been the default values? I will change the table and see how it affects the VE table numbers. I'll also look at the staging table numbers although looking through the log i don't think the secondary injectors have fired yet, will the staging table affect the primary pulsewidths below the staging threshold? I have used the data provided by ID for the injector set up but must have missed the ratio numbers, when I configure the primary injector flow rate do I use the flow rate of a single injector or the total primary inejctor flow rate? I suspect if I have this wrong it would impact those numbers in the VE table. I have verified the fuel pressue with a aeromotive fuel gauge, grated I doubt these are hugely accurate but it roughly confimed the sensors readings. the MAP sensor is also a brand new AEM sensors threaded directly into the manifold, but I haven't been able to confirm its output. I'll get a mityvac ordered. Big thanks for the all input and I will check over the car tonight and see if I can get out for another log session and check for improvements and report back
  7. Talkwrench

    Rotary Engine VE tuning

    1065cc primary & 1763 secondary, there Injector dynamics x series injectors. PCLR is attached above, it's only changed very slightly.
  8. Talkwrench

    Rotary Engine VE tuning

    Log file & pclr attached. Log file is for a 2Krpm misfire, thought it could be the TPS causing fuel cut, it wasn't. Still haven't resolved the issue yet, probably needs more fuel. Any help would be greatly appreciated. As for the map sensor values at 0 rpm I can't recreate this and it looks normal to me. Is this something PC Link does when it goes offline? Sets the rpm to 0 but retains all the other current values? Log file.llg FD3S TDX51R V1R2.1.pclr
  9. Talkwrench

    Rotary Engine VE tuning

    OK i'll get that done this morning when I take the car out again, i don't really have any logs that a worth posting Quick question, when I input the primary injector flow rates, is total primary injector flow rate or single injector? Im guessing this could be the reason why the ve table looks wrong, I have input a single injector flow rate
  10. Talkwrench

    Rotary Engine VE tuning

    Thanks for the quick replies, im still learning this system and any suggestions are good ones Good spot, I hadn't seen that. I'll look into that this morning. I have followed all the pre-start info i.e. tps, map calibration as well as timing offset with the light Morning Clint, good to see you on here (its Andrew by the way) . Is there a master fuel number in modeled fuel equation?
  11. Talkwrench

    Rotary Engine VE tuning

    OK, Faulty ECU replaced, new one installed and all CAN channels are now working, the car is running I've started calibrating the idle and low throttle angle areas of the VE table but its needing some really large % numbers to achieve the required lambda targets, almost like its twice what you usually expect to see, I have used the auto tune with fill right & down hence the crazy numbers in the table below. Have I missed a setting in the configuration? I can foresee that I will not have enough in the table to tune the higher load areas. The fuel pressure sensor has been calibrated and I'm happy this is accurate, fuel injectors are fully characterized injector dynamics X series. What have I missed?
  12. Talkwrench

    CAN Lambda Issues

    Just to close the loop. I called Simon and we went through all the possible causes which didnt resolve the fault. I went back to the supplier to return the CAN lambda and with further testing diagnosed the fault to be the ECU. Should have a replacement board tomorrow. Thanks to all who have helped. Clint at Brands Hatch Performance has been brilliant even helping me out of hours to get to the bottom of it.
  13. Talkwrench

    CAN Lambda Issues

    Thanks Adam, I will give them a call tonight. Edit - I should have added that the ECU & Dash are both running the latest firmware. I'm wondering if the length of the CAN cable is causing issues?
  14. Talkwrench

    CAN Lambda Issues

    So engine started, "tuned" idle by ear, the CAN lambda is definitely dead. I'll call the supplier on Monday to discuss a way forward. Very frustrating times, tried directly wiring the power supply to the battery without any change as someone else had posted here that fixed their issue. I would appreciate some feedback on the CAN1 channel errors even though it appears to work.
  15. Talkwrench

    CAN Lambda Issues

    Any feedback why I'm seeing these errors, especially on channel 1 which appears to be working as expected? Is there anything else I can do to try and get this working? Assuming it's dead do I just return the unit for a replacement?
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