ok i installed my 880cc precision injectors and the resistor box . start the car up and it will not idle unless you give it gas , but it stills sounds rough !! car is tuned on crome and had a gentleman program me a chip for the setup stated above with 10 psi on my 60/1 garrett . i followed the how to thread about the resistor box install on here which is pretty much dumbass proof and did it correctly . diagnosis anyone . dont bash me here because this is a learning experience for me also , so keep the ******* comments to yourself !! i would appreciate any input about this to help me out and oh yes i will get it tuned once i install these items correctly . thanks everyone !!!!!!!

 

His tune was based upon the previous size injector you have. It will not work on different sized injectors whether you go larger or smaller. This occurs even if you hooked up the resistor box correctly. Time to retune. no more "chips".

 

well said thanks for the advice . will get a tune asap !!!