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mobythevan

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Posts posted by mobythevan

    EDIS completed no SParky no Tach Signal!

    in MegaSquirt

    Posted

    A lot of times I have been up against a wall on my projects and some times I just back up a step to get them running and come back to the problem at a later date. Maybe back up and get the car running with the zxt dizzy for spark? Is there anyone local to you that is running EDIS?

    V3.57 (SMD board) with LS1 coils?

    in MegaSquirt

    Posted

    The mods should be fairly easy for 3 of the 4 coil outputs. For the first three use the LED circuits with a resistor installed, you probably already know that. The tougher question is building the 4th 2222 transistor circuit on the v3.57 board. I have not worked with one directly so maybe someone will chime in that has added an extra circuit to the 3.57 board. An option is that I have seen other people drive the LS1 coils directly from the ECU pins with a series resistor and it seems to work OK (see davew on msnsextra forum). In that case it is as easy as removing a few parts from the LED circuits and running wires with series resistor directly from ECU pin connection points. I have only used the 2222 transistor to drive pairs of LS1 coils in wasted spark mode so far.

    Resistors

    in MegaSquirt

    Posted

    If you are connecting the pullup resistor for tach input trigger you need this resistor. If you have a v3 or v3.57 board then you can use PWM for low impedance injectors and do not need dropping resistors for the inejctors. Any resistors in that diagram that are not related to the injectors you will need to put in your installation.

    The "Dumbass Shop Moments Facepalm" Thread

    in Non Tech Board

    Posted

    I accidentally left the old o-ring from the oil filter stuck to the bock of my boss's truck during an oil change. I put the new filter on and cranked up the truck. Oil went everywhere and I had to clean it all up.

     

    Ha, I did this one last weekend on my talon. 5 quarts of oil across the garage floor as I backed out.

    MSIIv3/EDIS6/Turbo (Basic Maps Anywhere)?

    in MegaSquirt

    Posted

    The installation sticky contains the settings for a stock L28et engine. Since you are going to poke the bear and have spent so much time researching then how did you miss this part of the sticky that is in bold(dwell on the last sentence in paticular then go back and read the sticky again, I'm not usually the person to cry out search but jeez):

     

    Here are the settings I have in for the fuel portion of megasquirt, these are before tuning so only use to fire up your engine, then do your own tuning or risk pre-detonation and disaster. My ignition table is just a simple one based on some that James put up in the forum. Notice it just does a simple 1 degree retard as the boost climbs(should have been around 1degree per 1psi). The contstants are based on stock injectors and stock 2.8l engine size. The volumetric efficiency table is based on other peoples dynos of the stock engine at 10psi boost. I am currently running 10psi boost and stock injectors, haven't got the 450cc injectors on yet. My accel and decel enrichments are not quite right. But this should give a good starting point if you are around 10psi boost and stock setup otherwise.

     

    Thread Locked

    MSIIv3/EDIS6/Turbo (Basic Maps Anywhere)?

    in MegaSquirt

    Posted

    This seems to be the main problem with MS. Everyone says "just grab a base map and modify it". It's almost like it's some kind of inside joke among MS pros (Moby, TonyD, Matt Cramer, etc) to tease about these non-existent baseline maps for the Nissan L28ET.

     

    I'm really and truely sorry for this rant, but BeJeeezus I'm just amazed that the end of a steep learning curve is still met with even more inside jokes like "well your engine is unique". Give me a freekin' break. I guess I made it this far by myself and I got the car running last night with "best guess" settings (a composit of weeks of looking at other maps from 5 other sites). I'll get a WB02 and EGT now to see if I actually came close to controlling this factory engine to industry accepted values.

     

    Once you get your base setup tuned to industry accepted values please post the settings so this won't be an issue for the next guy with a stock L28ET engine. Unfortunately my cars have only been tuned as good as I could do myself with a wideband and no EGT or knock sensor. I do not feel comfortable telling everyone to use them and claiming they are as good or safe as a factory tune. That is why you have been told to only use the settings on the internet as a starting point and tune from there.

    Megasquirt MSnS....version?

    in MegaSquirt

    Posted

    OK, I updated the sticky a little. Removing references to the MSS code and only talking about MSnS_Extra029y4. I also removed the old yahoo MSS links and updated the part about downloaded code since it didn't apply anymore. Man that write up is old, 2003, holy cow :shock:

    MSII frying my injectors?

    in MegaSquirt

    Posted

    Does the pintle move freely on these injectors that don't click? I have had a lot of used injectors that had the pintle get stuck. They did not click like you say. After cleaning them and freeing the pintle they worked fine. If they have been setting around for a while I would suspect that is the problem.

    resistor 1/4 watt vs. full 1 watt

    in MegaSquirt

    Posted

    It doesn't hurt anything to use the 1 watt resistor for the pullup if that is what you have in your parts bin at home. But 1/4 watt is correctly sized for this circuit.

     

    EDIT: I noticed at the bottom of the sticky is a note that someone was using a 1 watt and kept burning up HEI modules? Not sure why, but interesting.

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