MSefi.com read only forum (Jan.15,2018)

That EV12 injector looks like what the doctor ordered for those of us doing Delorean conversions. We had the K-Jet system and scrapping it has meant finding a replacement manifold (like the Peugeot 604 like I did), or the current prototype work we are doing using the stock manifolds and 19 ...

Ok, well we are finally finishing up the install on the Delorean. Is there anything I need to do to permanently disable the TPS signal since we are not using a TPS? The wire is dead ended. Do I simply calibrate it to zero for both open and closed?
Thanks.

I am in the midst of creating a very detailed "how to" document and custom parts package for owners of Deloreans to convert over to MS from the Bosch K-Jet system. I successfully converted mine using an alternate intake manifold, an LT1 throttle body and other customizations. I've come up with the ...

You sir, are a genius! I just stumbled upon this project of yours and downloaded your app onto my iTouch. Since I do not yet have a wifi transmitter, I was relegated to demo mode and am duly impressed. It seems a little bit buggy (screen flicker, slow screen changes and the like) but I'm sure those ...

I found that when I did the calibration that Lance suggested, I still had some discrepancies at high temps. I plotted curves for my result, documented ones from the manual and a few other sources. They all seem to be exponential, not linear. Essentially that means at the very high temperature, a ...

What if you used a pedal position sensor as the TPS feed?

Someone else suggested that and I started looking into it. From what I was able to tell, such sensors look to be very integrated with the specific gas pedal for the vehicle. I wasn't able to find any "generic" or that could be easily added ...

Thanks, that's what I was hoping to hear!

I'm trying to develop the necessary hardware for fellow Delorean owners to go MS without having to reinvent the wheel each time someone wants to ditch their K-Jetronics mechanical fuel injection system. Several of us (with lots of help from this forum) have gone down the path of alternate manifolds ...

Well I've been able to get it running by increasing the % of both the after start and the warmup. It seems very sensitive. I'm still low on my fuel tables I believe since my 02 is showing high values. The auto generated table would appear to be quite lean I think. This will be a fairly long ...

I'm having a start problem too, so I'm learning from these posts. :RTFM: A previous posted mentioned 88% of required fuel as the input for cranking PW%. So if I have a required fuel of 16.2, then my cranking PW% would be on the order of 14.25% ? Huh? Mine is set at 226% for coolant at 90 deg F. Is ...

Yup, previous post confirmed. All works fine with a dedicated relay just for FP. Just have to have the FP relay grounded through pin #37 while the FI and LC1 circuits go straight to ground, just like schematic.

I think I answered my own question.......... NO :(

Even though getting 12V upon crank (and a confirmed good coil in the relay), when grounded through pin #37 exclusively it doesn't complete the circuit upon crank. #37 must need MSII to be live for it to go to ground. Since MSII is powered by the ...

I found a 12V 3PST relay and nice socket at the local electronics shop. A single run/crank 12V signal energizes the relay, and three separate circuits get completed for the fuel pump, injectors and the LC1 02 wide band. The MSII also gets power from this signal.

Simple question; can this run/crank ...

I think what I may just do is fast forward to my ultimate state and just use the distributor's VR output and have MSII do all the work. Yeah, getting it lined out may be a few more variables to juggle, but if I understand correctly, just by changing tables related to manifold pressure and engine ...

Matt, I'm all assembled and everything would appear to be ok. I have megatune up and running and have real time data from all stim inputs (once I remembered to jumper the one diode). Working on the wiring now. Took a couple hours out today to rip off the old manifold and mechanical FI stuff from the ...

Prior to installing the new Max232 I checked all voltages and connectivity per the trouble shooting manual. Nothing other than what is should be. The new cable from DIY (all drivers installed per procedure) is configured as COM 6 and passes the pin 2-3 loopback test with hyperterminal just fine.

I ...

Matt, this thing is killing me.... despite all the positive diagnostics of the past couple of days that would indicate all is alright, tonight I failed again.........

Step 26 e. passed with flying colors... loopback of cable. Everything echos OK.
Step 26 h. connect the stim, jumer 12 to 13, connect ...

Sorry, forgot to answer your question...... ~870 ohms between #9 and center leg of U5.

S5, got it, it has 5 v on it.
I think I have good news when I look at actual resistance not just continuity...
DP9 #1 pin versus each MAX232 pin sequentially: 1,1.25,1,varies,1,1,1,1,1,1,1,1,1,1,1.32,0 with the meter on the 2K setting . So yes, it looks like I have a highly sensitive continuity ...

Matt Cramer wrote:S5 - not JS5 - is connected to the 5 volt plane by traces in the PCB.

My bad, sorry... where is S5? I don't see it on the v3 components.gif. Is it a labeled hole on the backside? Next to what? Thanks.