no spark no injector fireing
 

car will not start speed and reference signal new and gapped correctly new dme relay checked grounds clean and tight fuel pump works and is new replaced the chips in the computers with the stock ones and the car still will not start thanks for any help

Need to determine whether it is fuel or spark problem or both. Get another spark plug and attach to a lead. Get someone to crank engine and see if there is spark at plug. You can use a battery jumper cable attached to hex on plug and ground to engine for test. That way you can hold it in your hand.

i know it is a spark and injector problem i have checked mulitple times

Check all connections on the speed and reference sensors. Even though new they are far and away the most likely culprets.

Aaron

Did you mix up the speed and reference connections?

Do you know if the injectors are firing? I finished up bigger turbo, chips and injectors on my car. The fuel rail has been off the car about 5 times in the last two years. After getting the car back together it ran rich and stumbled on boost. I narrowed it down to the injector wires. Our cars are old!! Age and heat makes the insulation around the injector wires brittle. When you revove the fuel rail and the injectors and also yank on the enjector wires without removing the wire clips around the pigtails you cause the insulation to break at the connector and the wires short out and cause the injectors to fire erraticaly. I tested them with a multimeter and found two were bad. i sliced back the rubber causeing and saw bare wires touching. A little electrical tape on them before i could get the NAPA replacements that are better and the car was great. Its common. I have found threads about it. I imagine the bare wires can get frayed and break as well.