Let me just say that I built the ms2 v3 with the zeal board and followed the diyauto walkthrough and the car fired up on first try. Now I have some questions as if my setup is correct since there's some hickups when I apply the throttle, it goes lean for a sec the goes back to normal. Im using the base maps that are on the aaroncake writeup.
First I have both of my primary injectors wired together to both bank 1 wires, or should they be one wire for each injector? secondaries are the same to bank 2. and I suppose that bank 2 on the injector characteristics should be on. I used the staged injection settings that are on aaron's writeup. so shouldn't I see some info on the pulse width 2 guage when the secondaries are on? because mine is always zero. I used the settings that are on the diyauto website and the rest i used from the aaroncake write up.

second question is that I read on a thread on how to wire the e fan and this is how it is with me- JS11 on v3 board is jumped to IN2 in the zeal board and SPR1 on v3 to OUT2 on the zeal, and pin 3 on the db37 is to control ground on the relay, on the settings i have knock enable at coolant >195 and for some reason with the ecu off or on the fan is always on.

I would upload the msq file but I dont know how to.

 

With MS2, you only have two injector banks. So you wire primaries to INJ1 and secondaries to INJ2, and they batch fire.

You're likely seeing a lean spot because the tune isn't set up for your car. The lean spot can be the VE table, or the accel pump. Likely the accel pump. Any map needs to be tuned to the specific car and the settings on my website are just there to get you started.

The secondary injectors remain turned off until they are needed, so you won't see any activity on them below 3800 RPM and 90KPA (if I am remembering my settings correctly).

As for the fan control, you'll need to find out what outputs you have free and connect those to the Zeal card.

Looking at the documentation:

Assembling the Zeal Engineering Daughterboard for MegaSquirt

It looks like you can use JS0, JS2 or JS11. You'll connect that to the "generic IO" of the zeal card, and the use that output to drive the fan relay. Then you'll pass it through the DB37 on whatever free pin there is. Note that massive confusion will result in you mixing writeups, so if you used mine for part of the build yet wired according to DIYAutoTune, there will be problems.

Unless you have a knock sensor connected, you should not have any knock settings enabled.

 

Ok I understand now, but I still cant get to get the fan working properly. I switched how I had it -->from JS0 to IN2, then OUT2 to SPR1 which is the number 3 wire on the db37. Then that wire is going to the ground side of the relay for the fan.On tunerstudio I have IAC1 to coolant >190. My problem is that with the ecu is on it works right, but as soon as there's no ignition the relay has continuity to ground, and if i have the the fan connected for some reason it powers the ecu. The LED start to light up. I checked for a short to ground and there isn't one in my wiring. What Im thinking its internal. I even switched to different outputs in the zeal card to see if it was a bad transistor but no, all have same result.

 

Have you connected the relay coil to constant 12V instead of switched 12V? That will backfeed the 'Squirt.

 

Yes it was to a constant 12v source, I'll switch it to a switched source then.

 

Odd, my diagram shows it wired to 12V. I know I've also done that in the past. Regardless, it should be wired to switched 12V so I will correct my diagram.

 

Well pin 30 on a relay can be to 12v constant, is just the 85 pin that needs to be to switched 12v right?

 

Pin 85 (or 86) should be IGN switched 12V, while pin 30 (or 87) will be constant 12V feed from your fuse panel.

Funny for years I have connected the coil to constant 12V and not had a problem, though I recognize that it can be an issue and is warned against in the docs, so I'll change my writeup at some point.

 

Yea thats how I have it now. Everything works like it should.

 

One thing I noticed was that on normal acceleration from low gear for example the secondary injector staging works flawlessly, but on high gear for example in fifth gear on full load and when the staging occurs there's a stumble as if too much fuel for a sec. I noticed when that happens on a log the secondaries pulse width looks like a zig zag line. I'll upload some pictures for better understanding.

 

What staging method are you using? If you're not using table-based staging, I'd suggest switching to it.

Ken

 

I used the settings from the Aaron cake writeup, how do I enable the staging table?

 

Set the first staging parameter to "Table". Then you just need to set up the table to tell the ECU how much secondary injectors contribute at the range of load points. The example shown in the manual is pretty good. I'd recommend richening up the VE table in boost first though.

Covered fairly well in the MS Extra manual.