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  1. 420a Turbo Support Advice Needed

    That is a great idea! I know the return is just WAY too small it seems.Cool, I will do that thenThat is also good to know. I am not going to mess with it until I get spark blowout then.HP goals? Right now I am trying to get the project together and running. After that I will...
  2. 420a Turbo Support Advice Needed

    I am helping a friend sort out his 420a turbo problems and get his MS2 system up and running.Little background on myself, I once had an AWD 1990 eclipse 4g63, bigger turbo, MS2 running E85 and all that fun stuff. My knowledge is mostly in the 4g63. The 420a engine is a new engine I haven't...
  3. Fill in the blanks for 2g ecu

    I am on a mission to figure out what all the pins do for a 2g ECUI am going off of the diagram fromVisual Frequently Answered Questions - Home PageAnd there are a couple that are left blank. I know maybe a couple of them are relays when the ecu is connected in.I am...
  4. My low cost high compression daily driver E85

    Very interesting buildBringing this back from the dead a little.I am now curious also of this build. My altitude is lower then where you are running but I want to see if it will still hold together.Found an engine at the U pull lot and we have plenty of E85 stations around here...
  5. Megasquirt....again

    I recommend using the MS2 chip with the 2.2 board.I love my MS2 system!
  6. Looking for 4g64/g4cs answers? LOOK HERE!!

    I am kind of new to the g4cs/4g64 crowd.I have a couple of questionsWhen people are building these motors, are you using long rod or stock rod length? It looks like there are a couple of options out there when building these motors and I don't know what the options are. So far a 150mm...
  7. Megasquirt and Big injectors

    Did a little rewiring today and rewired the injectors so that there wasn't a resistor box between the signal of the megasquirt and the injectors.I think this work out a lot better.I also switch to E85 and it idles a lot better then what it did.This is the best idle that I have ever...
  8. Megasquirt and Big injectors

    I have been playing with fuel pressure just to see if that would help me out. I have a Aeromotive FPR. I turned it all the way down to 30 psi to see if that helps out at all. That could be a little too low really...Then I started to play with the PWM WITH the resistor pack still installed and...
  9. Megasquirt and Big injectors

    If anyone running the MS2 system on their car (doesn't matter if it is 4g63 or 420a) I am just wondering what size injectors are you running. I am having some trouble getting my 1150cc/min FIC injectors to work and I really don't know why.It just seems too rich right now at idle but that...
  10. new to ecu tuning

    I just read a really good bookForced Induction Performance TuningI think that goes into really good depth, just look on amazon
  11. General MegaSquirt 2 setup

    Cool, good to hearLinear worked for me and I am sure that it will work for you. Just remember to set it up correctly in the ZT-2 with the laptopKeep us updated! I am glad to see that this is being used more.Also as an updateCheck outMS Tuner StudioMakes tuning very user...
  12. 1G Leaking ECU caps cause hard or no start?

    Depending on the damage and if you feel confident, you can replace them yourself. I think you can buy them off of ebay for $5. Or if you just want to buy another ecu that work also. Can I buy your old one then?I did mine and it was pretty simple. Sometimes leaky caps causes fuel pump...
  13. General MegaSquirt 2 setup

    Hmmm....I am not sure if this is right or not...I need to take my MS2 out of my car to see if this is correct but I think you don't need two caps in thereAfter doing this project, you would think I would know more about resisters and Caps but I don't so anyone else feel free to chime...
  14. General MegaSquirt 2 setup

    great to hear! I can remember when mine turned over for the first time and I couldn't believe that it was working on a computer that I made from scratch.Just some other helpful advice or things to check over (and this is because I did it) It sounds like you are running a Zeitronix WB. on...
  15. General MegaSquirt 2 setup

    Hmm... I don't know whats going on...Looks like you tested it and the cas worksFirst make sure you installed latest version of MS2spark extraHave settings on thisSecond 2nd trigger input Looking at this diagram again just to review itSo far so good picture470R...
  16. Anyone running MegaSquirt

    Looks like you are not getting a signal from your 2nd triggerI posted why in the other thread
  17. General MegaSquirt 2 setup

    Wait something isn't right here....Or the understanding of how the CAS works...The cas does not supply a 5v signal. You shouldn't even see a 5v signal from the CAS signal wiresback to the basicsThere are two signal wires coming from the CAS1 wire is the 4 slot 2 wire is the 2 slot...
  18. General Stock Spark Map for 1G DSM

    AWSOME thanks! That is just what I needed. :thumb:However that is really close to the one that I have. Actually mine is less agressive. So now I need to figure out what else is going on.tuning is fun! :rocks:
  19. Anyone running MegaSquirt

    I am running MS2 and just want to say I love it! I like having a 16X16 VE fuel mapJust for warn, the MS2 and MS1 are completely different mods!!!! this is for anyone wanting to start out.For DSMs I recommend using MS2extra if you are doing the MS2 version. all the 4/2 cas are calculated...
  20. General Stock Spark Map for 1G DSM

    Running MS2 and now that all of the bugs have been figured out, now I need to tune the car. I need to start with a conservative spark map.The one I have is too aggressive I think...Does anyone have one on hand?(I don't think it should matter if it is only for MS2, any standalone should...
  21. General MegaSquirt Standalone 1G wiring help.

    More info neededWhat version of MS (ms1 ms2?)Did you tap into the harness and is the stock ecu controlling or reading? (my ECU is still in place because it is needed to turn on the TPS and other things maybe even the CAS)Did you do all the mods to make the MS see the cas signal...
  22. General MegaSquirt 2 setup

    This is from a while ago but I am glad people are starting to use the MS2 systemJust follow the diagram above if you want to bypass the 4n25 pin. It is kind of tricky to organize the proto board but just think of where wires need to go.Make sure you have the pin in the picture going to...
  23. General MegaSquirt 2 setup

    http://www.gsrcyborgclub.org/viewtopic.php?p=16287This guy almost made one up but lost interestWith people using mostly DSMlink, most people don't want to deal with the involvement of this standalone (or sometimes just standalones period). thats why there are only 10 dsms out there with...
  24. how does the ECU manage Fuel cut?

    working on that... the data logger battery went dead and I would have to drive out and run a log again.I am going to be using a megasquirt system and after getting advice from people, I have decided to just take over fuel and spark with the MS system. However the system has options if you...
  25. how does the ECU manage Fuel cut?

    Really I am not sure whats going on...I think it has to do with the ECU thoughI have narrowed it down to the fuel injectors i thinkIt has to be fuel related some how. What happens is that the car will drive normally and then suddenly it seems like the car shuts off. Then after I pull...
  26. how does the ECU manage Fuel cut?

    The reason I am asking this is because first I think my ECU is bad and is triggering fuel cut when it shouldn't be like just cruising around, this could be because of the MAF-T or other reasons but I think it is causing my car some problems. For example my car is randomly shutting down.I am...
  27. General MegaSquirt 2 setup

    Well I hooked up MegaTune to it to see where in the RPM it is doing this.So far from what I could tell is it is around roughly 325rpm to 480rpm which isn't too bad because the car runs overs those RPM (exept maybe on startup for a little bit but still wondering whats going on...It doesn't...
  28. General MegaSquirt 2 setup

    well I have some good news and some bad newsGood news is that the 4-2 pull up works! Thanks XtremeRS2gntI cleaned up the proto area and there is a lot less stuff there then there was. I am just going to have to be extra careful when hooking it to the CAS. However like everyone else said...
  29. General MegaSquirt 2 setup

    I did do the main tach mods for the main tach input. So that will run on the 4N25 that is on the board. The 2nd trigger will look almost (well exacly) like the one posted in your other posthttp://www.diyautotune.com/images/forum_pics/msextra_4-2miss/fix_schem.gifThat should be the...
  30. General MegaSquirt 2 setup

    This is kind of interesting about the board having a resistor on it.I found two diagrams on how to wire up the input signal to the MS2one foundMS2-Extra Miata 4g63 Manualand the other found herehttp://www.msextra.com/ms2extra/Ignition_Pixs/42cas2ndtriggerinputwitcc7.jpg...
  31. General MegaSquirt 2 setup

    Well tried using the opto 4n25 wired correctly but it still wasn't reading input.So onto plan B on the pull up resistor
  32. General MegaSquirt 2 setup

    WowI just looked at the pin diagram...I may have wired it up wrong...:sosad:I also read that whole forum on strange problem... very interesting! However the picture is missing from that thread where you did the modification. You should post it up so I can see how you did the mod. I...
  33. General MegaSquirt 2 setup

    Yeah, My pin was bad I believe. I just jumpered and bypassed the 4n25. It reads RPM perfectly!Now to get it installed into the car....:rolleyes:
  34. Battery Relocation problems

    I followed the basic guide to relocating the battery in the back of the carhttp://www.geocities.com/dan0myte/mods/battery.htmlHowever it seems that I am loosing power everytime I am starting the car, almost like the battery isn't holding a chargeI did replace the alternator thinking...
  35. General MegaSquirt 2 setup

    I am hoping someone that has already done the Megasquirt 2 modifications will chime in.I took the plunge and bought the Megasquirt 2 system (msII and V3.0) and have been assembling it.Everything is working out and testing out great. It has been a wonderful winter project to keep me...
  36. fidanza flywheel too big for tranny help!!

    FWD and AWD flywheels are way differentFWD are actually biggerFound this out when swapping parts and engine had an AWD flywheel, installed the FWD transmission, Starter just spinned Couldn't touch the teeth of the flywheelThere isn't any difference between the crank with the AWD and FWD...
  37. Clutch replacement question.

    Umm... Don't post if you don't know for sureEvo III came with 7 bolt motors, never came with Cyclone. It is closely related to the 2g motor, little to no crank walk issue in this motorVR-4 came with 6 bolt
  38. What turbo??

    Ok so it doesn't get much more of a newbie question then this and I am thinking it is the 14b but I thought they didn't have the secondary fins on them. I looked at all the ebay ones and they didn't have the secondary fins but this one does. Is this the 13b? I opened mine up and this is what I...
  39. Fuel Trim Tuning Problem

    Just wanted to update that I did a boost leak test and there are no boostleaks... I am actually dissapointed because that would mean it would be kind of an easy fix.So now computer is going to get reset to zero and what I might do is play with the base setting, set it a little leaner the...
  40. Balance shaft

    Did you recently replace the timing belt? or did this all of a sudden happen?
  41. White smoke from exhaust

    I had a similar problem. Mine was the valve seals. Same thing, stopped at a stoplight or at idle and car smoked. It was quite embarrassing. But mine had a blue tint to it but the exhaust smelled funny even when it didn't smoke. replaced seals and fixed it.
  42. Fuel Trim Tuning Problem

    I was thinking of letting the computer zero out however that won't mean that the rich problem will be fixed. I was taking drives to and from work/ and school which are about 30 min..I will boost leak test to see if I am loosing air somewhere which I could have lost a cap on the TB or a leak...
  43. Fuel Trim Tuning Problem

    Little bit about the car1990 Eclipse with 1990 ECU Tuning with a MAFT (thats all I have for right now) Pocket logging with a PalmI am new to tuning but something still doesn't seem rightAnd please correct me if I am wrong about any of the tuning that I have doneI am trying to...
  44. Galant Drivetrain

    Cool AWD is on its way:sneaky: as soon as I find a transfer and drive shaft....:sosad:
  45. Galant Drivetrain

    I meant that the transfer cases are the same between the DSM and VR-4 however I didn't know about the driveshafts
  46. Galant Drivetrain

    Is a DSM drivetrain similar/same with a Galant VR-4The VR-4 is missing the transfercase and driveshaft. Transfercase is the same but I didn't know about the driveshaft after those are installed it will be back to an AWD
  47. Running Rough, Hard Starting after rebuild

    For the battery problem I just grounded everything. I have a ground going to the alternator, coils, transmission, throttle body, and another one going to the starter. It was made of 4 guage wire. The wire that I have for the positive is a 2 guage welding wire. has a high strand count and works...
  48. Running Rough, Hard Starting after rebuild

    I recently did a mild rebuild of the engine and I am having problems. I am just going to post one big thread instead of lots of little threadsJust some discriptions1990 Eclipse GSXthings done to it during rebuildEngine apart to bare blockBalance shafts removed and blocked...
  49. Rebuilding engine, what am I forgetting?

    "you said killing alternator's that would be power steering fluid leak more likely because is right on top, or high resistance from the tiny stock wires. this is what i did : rewire it with 4ga wire pos and neg .if you trying to go all loud with this i would strongly recomend a alternator...
  50. Battery relocation [Merged 3-8]

    Don't have an audio system in the car. I took it out and the plug doesn't have terminals that can ground outI used 4 guage wire for the positive and negativeI am also using an acid free/sealed battery and it doesn't have any of the corrosive problems like the other batteries sees...
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