I am at a loss. I changed some stuff up on my car (turbo, cleaned the injectors, new intake, etc.) and now when I start it up, it only runs on clyinders 1 and 4.

I have ensured that it is a fuel issue due to the plugs being brand new and zero gas on them when I pulled them out, swapped coils from 2&3 to 1&4, 2&3 still do not want to fire. What else could it be on an evo?


I tested the wiring for the CAS, and it is as follows:

11.88v
3.78v
.06v


This is with the key in the "ON" position. Are these good numbers?


Thanks for any and all help,

Josh

 

Are u getting power to the coil? Did u check fuses?

 

11.66 Volts (cold outside, small battery) to the coil, Checked continuity for the ground as well, and the third pin is getting .06v as well. I checked all fuses that are maked as an engine fuse in the engine bay and in the cockpit, anything else I should try?

 

if its a fuel issue why worry about spark ? also have you checked the injectors if they are getting pulse?

 

I took "not firing" as no spark as in the coil not firing. How do you know its only running on 1&4? Misfire counts? Did u try swapping injectors around? Do you have access to a scope?

 

I just checked if my injectors were getting signal via a noid light, and they are both getting signal as well....

My spark plugs are completely dry and brand new looking everytime I pull them out which is why I believe its no fuel, but they are getting a signal to open.

It just seems weird to me that both cylinders that are having the same probelm are on the same coil pack as well...

 

If I unplug 1 or 4 via injector clips or the coil pack that runs 1&4 the car dies, but if I unplug the coil that runs 2&3 the car sounds no different.

 

How did you clean ur injectors? in detail

 

Do you have a compression tester?

 

yeah, everything was perfect before I swapped turbos, it was about 160 across the board.

I just swapped injectors 2&3 (the cylinders that were not getting fuel) with injectors that were in cylinders 1&4 (the only two that were working correctly) and found that the injectors I moved from 2&3 to 1&4 are not working now, which leads me to believe that the injectors are not working correctly.

How do I troubleshoot my injectors? Why would two of them be bad at the same time?

Before I started my car today, it was sitting until September with e85 in the tank, which I drained completely, and also removed the injectors, soaked them in pump gas, and made sure I didnt see any black goo anywhere.

Where do I go from here?

Thanks

 

Figured it out. Threw some stock injectors in, and it runs perfectly. Need to send my FIC's out for cleaning I guess. Weird that two went bad at the same time too...

Thanks for the help