I just put in 450cc dsm injectors and the dsm relay box in my turbo charged zc,,its a 1990 civic si and when I go to start it, it just spits and sputters, I have an ajustable fuel pressure relay and I've tried turning it down and up and it doesnt make a difference,,anything else I can do???

 

You need something to control the injectors like turboedit, hondata, the afc hack, etc. The stock ecu will be unable to control those injectors.

 

Yup what he said...cant run stock ecu...and dont get a chip from ebay, that wont work...you need a piggy back, or standalon...safc hack would work also...im personally going to be running turboedit on the same setup u speak of...

 

yeah,,I have an afc,,we found the problem, it was the adjustable fuel pressure regulator,,it didnt have a vacume, so I bought one with it and it fixed the problem so now I can go tune it next week...thanx anyways