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Megasquirt stopped firing injectors, WHY??


jimbo5670

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Ok, i am running a l28et, megasquirted, the timing was way out so i set it today. Megasquirt v2.2, and i had the car running last time I was home, but now when i crank, it says i have no plusewith or duty cycle.

 

Things i have checked

- Air temp and water temp are both working

- Fuel to the rails (not that it should matter)

- Power to injectors, but it is doing something strange, each plug, both sides are showing up on my test light when the 'squirt is on, but the motor is not cranking

- the tuning is set up exactly the same as moby had put in his guide

- Has tach signal

 

So someone please help, its been a frustrating pain in the a##, and i just want to get it to run.

 

Thanks,

Matt

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Could you post a data log? It may have gone into flood clear mode. That's the usual thing that will shut off the injectors during cranking. If it actually says no pulsewidth on MegaTune, that's an indication that the issue is that MegaSquirt is commanding the injectors not to turn on, rather than that there's some fault keeping them from turning on.

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ok, i ran power strait to the battery, still got nothing, then i bypassed the resisters, that got me the injectors to start, but im afraid to run open current like that, or am i just being overly worried?

 

and secondly it still didnt start, could i have toasted the injectors?

 

P.S. Thought i smelled a bit of ozone when i did that

 

Thanks,

Matt

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