So I lurked and searched, but I don't think this has been asked. I am using a v2.2 with a MS1 cpu. I am running NA streetport. I am breathing thru 50mm ITBs, and I am trying to control spark with an unmodded cas. When I hook everything up to the car I can see thru megatune that all my sensors seem to work and when I crank the engine I get an RPM signal. I notice that I don't get any fuel. I am running 50mm ITB and I can open them up all the way and I don't see fuel squirting out. I can see PW numbers change,, but my dutycycle number doesn't seem to move. I have a pressure guage on my regulator and I see more than 50psi.

Originally I thought it was spark related but when I pulled a plug and cranked it, I saw a spark from the plugs. I think my ignition portion seems to be working right.

I originally was trying to use this map,, any suggestions are greatly apreciated.
MSQ had .zip added at the end.

 

to the pulse width and duty cycle gauges come up?
if so you may just have the injectors wired wrong.

 

The injectors should have (fused) 12v running to them, and the MS switches ground. The MS needs a couple things to send a pulsewidth to the injectors. First is the req_fuel value, which is set up in the basic settings. Second is the VE table, filled in to something reasonable (even if these are way off, you'll still see fuel squirting). Third, in starting settings, you need to specify a starting pulsewidth for each temperature. I have 7 ms for 71 degrees, and approx 1 ms more for each lower temperature bin.

 

I've verified that it's not my harness,, pins 32 & 33 each go to one bank of injectors and pins 34 & 35 go to another bank of injectors. Then to a resistor block that gets 12v+ switched. The problem's gotta be staring me in the face.

 

Do the injectors have 12v when cranking as well as running? Some 12v sources shut off when cranking.

 

You're running the PWM set to 100% and 25.4ms, right? Since you're running a resistor block.

 

Yes I am running PWM 100% and 25.5 ms.

My MS1 has error's board in there for both the VR conditioners. All the additional wiring (CAS & coils) were run on a seperate 9 pin connector so the DB37 connector has all the wiring as if it's fuel only. Can I run my old stimulator with "wheel for stim" enabled? I want to see my stimulator's injector LEDs light up. I am starting to question whether I fried my injector driver transistors. (but then my MegaSquirt's LEDs should not light up,, right???)
-Rob