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Wuppet

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Everything posted by Wuppet

  1. Folks, Thank you for advice, believe i will take a different course. Haven't got temp sensor on to know how hot, but hot enough that can't touch lines and could hear fuel bubbling in tank, i assume boiling. Main issue is underbonnet heat and location of fuel lines running close to headers, cannot see that i can relocate fuel lines which are already wrapped so will investigate wrapping headers. May need to introduce so sort of chiller as well. Problem has really only presented on insanely hot days on long run, so not major issue
  2. Folks, Hoping for assistance - My vehicle is suffering from dramatic fuel overheating and Im trying to figure out best way to limit such. From instructions it would appear that a closed loop fuel pump control based on pressure would be the way to go, just got no idea how. Fuel Pump is an intank version of the aeromotive a1000 - currently setup with regulator and return. - motor currently naturally aspirated/port injected 500cube hemi, soon to be boosted. Can anyone assist with advice as to how to go about this? I have NFI and have looked at a heap of other posts and just cant make sense of them. If I need an external pump controller, which one should I use? and how should I wire it and configure ecu to control it? Appreciate any thoughts. Cheers
  3. Wuppet

    RPM Drop/cut random

    done - let me know your thoughts As mentioned this seems very similar to issue posted by Luis "Deceleration problem"
  4. Wuppet

    RPM Drop/cut random

    Folks, Hope you can assist, I have a seemingly random rpm drop which doesn't occur all the time. Mainly notice it when coming off acceleration and rpm drops back to about 2000 then there is like a momentary dropout and back again, sometimes it will do this multiple times in reasonably quick succession. caught it in a log file tonight have a look at log approx. 32:28 you will notice rpm drop - link to log file below This seems very similar to recent posting from Luis "Deceleration problem" probably related https://www.dropbox.com/s/u36jm3fmg8rf9dq/Log 2019-08-23 6%3B04%3B38 pm.llg?dl=0 440.pclr
  5. Wuppet

    GPS Speed Sensor setup

    Adam, Appreciate your assistance - hope i can request a bit more. I have nil experience/knowledge of wiring CAN systems and have no idea what to do with physical wiring - can you advise? I have a single signal wire that goes from the Autometer GPS Speedo interface to the speedometer - this interface module instructions say it is calibrated for 16,000ppm and outputs a 12v square wave Appreciate any assistance you can offer. Cheers
  6. Folks, Hope you can assist. I am trying to setup a lockout for Transbrake based on "any speed" to avoid accidental engagement. Vehicle has Autometer speedo with GPS sensor. Hoping you can suggest a method: 1.Use the sensor to provide speed input to the ecu (thunder) 2. Provide output for the speedo 3. Lockout the transbrake switch function if any speed detected Appreciate any thoughts Cheers
  7. Wuppet

    Thunder lambda sensors

    I must be looking at something wrong. 2 screen grabs below - first is prior to disconnecting and disabling lambda 2, second is after - in both the graphed 5v is all over the place, the value below is stable, is this just "noise" inthe graphi ng Will move that ground as well
  8. Wuppet

    Thunder lambda sensors

    as the 5v fluctuation is new i looked for any changes, i had plugged the "suspect" o2 sensor back in, so i disabled it in ecu and unplugged it. TPS on log is now stable, - this is odd as i had only just plugged it in before taking that last log, maybe disabling it in the ecu has done something additional. will go back across everything related to that sensor line. Log 2019-03-30 1;19;19 pm.llg
  9. Wuppet

    Thunder lambda sensors

    MSD Grounded to post through firewall - as is ecu and relay banks on fuse board - heavy strap from post to engine - engine to battery have attached latest log and trigger scope grab - are they what you are seeking? This latest log shows massive fluctuation in the 5v line - if you look at about 2.4 - 3 the TPS at this period was at constant idle, all the jumps to 20% are "erronous" Also attached photos under bonnet Wiring enters via 50 deutsch plug to lower right of msd, with heavier wiring via another deutsch just to the left of it - wiring all bound together and stays low at back of engine to the valley, seperates to injectors/oil pressure sensor/idle control motor (disabled currently), rest of loom runs forward to TPS, water temp and dual sync dizzy Coil is to right with high tension lead running along strut brace to dizzy I am at a loss to explain the 5v line fluctations as they seem to be new Any ideas? Log 2019-03-30 12;08;56 pm.llg
  10. Wuppet

    Thunder lambda sensors

    Gents, I really appreciate your assistance with this thing - im really confused as to what is going on. That last log was immediately after TPS calibration - have done so again along with map as well - as it did last time if engine isnt running the tps seems to be pretty much as one would expect. The throttle body is an Aeroflow unit. After recal of tps i took first log attached from cold engine, so you can see it jump a bit while warming but it pretty much was idling straight away - the big broad jumps in tps were at constant slight pedal. Watching this on "tuning" screen i could see dramatic jumps on the tps bar graph, there was absolutely no throttle movement. once warmed properly i restarted log file and while running unbolted tps from throttle body (possibly took a few minutes) and this didnt make FA difference to what was happening. Wiring runs from ecu to firewall into Deutsch 50 pin connector, from there to sensors +everything else, there is a MSD ignition and coil in close proximity (approx 4-6 inch) HV lead runs higher along a metal strut brace to distributor at front of engine. im kinda stumped - any ideas? Cheers! Log 2019-03-28 6;39;12 pm.llg Log 2019-03-28 6;40;45 pm.llg
  11. Wuppet

    Thunder lambda sensors

    Believe that i have all idle control and enrichment disabled - please correct me if I'm wrong. Idles fine once warmed up. The tps signal seems fine when idling and warmed up and has noise at part throttle, Amy ideas on how to eradicate interference
  12. Wuppet

    Thunder lambda sensors

    Gents, Can you please have a look at TPS in this log and let me know your thoughts. Have replaced TPS with a new Delphi sensor and disabled accel enrichment - is the "stability" of sensor something you would think to be acceptable? Appreciate your assistance Log 2019-03-24 4;57;56 pm.llg 1StewsPlymouth.pclr
  13. Wuppet

    Thunder lambda sensors

    Had issue back on the 10th with tps, could actually feel the surging whilst driving and could watch it on the bar graph for tps-to extent that i thought the 5v line was dropping out- logs don't show that Did a calibrate and it pretty much disappeared and yet is now back in logs but can't see visually on bar graph. Could this be result of noise? I did sit with car not running for a long time watching the tps at the same part throttle, it didn't even twitch Your advice is good, i thought i had enrichment disabled. Will go back and check basics before further troubling you folks
  14. Wuppet

    Thunder lambda sensors

    both are genuine bosch sensors, No 1 loom and sensor seem ok beginning to suspect that there must be something like a bad connection in the 2nd loom + "no2" faulty sensor. If i plug the known good connector (1) into the other sensor (2) i get an error - something related to heating. If i plug loom 2 into the "good" sensor (1) i get an open circuit error. Have rechecked loom 2 and it meters continuity fine - scratching head now! - will get someone to wiggle connectors at same time and see what happens I am a little confused by todays work - over last couple of days i have roughly tuned using the mixture map and logged data, adjust and repeat - to the stage it drove pretty good last night. This morning took it in to get new exhaust fitted (headers back) drove in fine and almost undrivable on return trip - i would swear lean back firing majorly! Sensor still shows as rich pretty much everywhere - ignored this and added approx 10 points across the entire fuel map - ran heaps better but log still shows rich. Have attached map (after adjustment) and 2 log files - earlier log before adding extra fuel. Any thoughts Note: would you expect TPS to be as unstable as log shows? Log 2019-03-18 5;47;10 pm.llg Log 2019-03-18 5;57;35 pm.llg 1StewsPlymouth.pclr
  15. Ken, would appreciate it, mostly looking to use as comparison to what i currently have, which is actually working.
  16. Wuppet

    Thunder lambda sensors

    Not sure what to do here, i have metered all wiring right back to ecu with no issues. I am getting constant readings from sensor 1 and if i swap that plug at the sensor i get readings from the other sensor Likely that log file is in a very rich status as it is untuned and extremely rich, i get nothing from sensor 2 right from initial start Any thoughts as to what i should be checking
  17. Wuppet

    Thunder lambda sensors

    are these what you are after? maybe have a look at the ignition map while you are at it - might help with my other post appreciate any words of wisdom cheers 1StewsPlymouth.pclr Log 2019-03-10 12;14;29 pm.llg
  18. Anyone care to share any ignition map for BB mopar or any other BB gasoline engine Using a dual sync dizzy with single coil, Keen to compare what i have created with others before sending to dyno
  19. Folks, I am not getting reading from second o2 sensor/lambda sensor on display gauges or logs Have checked wiring all the way back to ecu and swapped sensor plugs to ensure sensors are good. Gotta be doing something wrong Any thoughts!
  20. Wuppet

    Ecu hold power

    Query, On my vehicle the ignition circuit (power on) drops out when key turned to activate starter cranking. I assumed that this would cause ecu to turn off so i have wired ecu to seperate switch and constant power source. Ideally i would like to trigger through ignition switch. My query - would the ecu hold power function accommodate for this and hold the ecu on whilst cranking and then simply drop back to being "on" when key released from cranking activation. Appreciate thoughts and or options
  21. Wuppet

    Trouble starting

    Adam, Spot on bloke, replaced faulty temp sensor and its alive. Thank you for your assistance
  22. Wuppet

    Trouble starting

    Folks, Hoping you can assist - cannot get this mutha to run 496 cube mopar with thunder g4+ ecu (engine was running with another ecu, but not tuned) - Fast dual sync distributor as trigger source - both hall sensors - Fast 36 lb injectors x 8 into single plane manifold runners with square bore style throttle body -fuel pressure approx. 55psi -MSD 6al ignitor and msd coil Have static timing on TDC and Trigger calibration shows exactly that - when turning over engine timing light shows 10degrees which would correlate with ignition table attempted to start with master fuel at 15 - did not even cough -set it to 50and it fired and ran, although was like timing dramatically out, backfiring etc - tried various settings on master fuel belwo about 25 got nothing at 35 barely fired and coughed and backfired etc - would have sworn timing 180 out - have checked that static is correct. file attached Any thoughts appreciated 1StewsPlymouth.pclr
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