kevincayson

I have a 2004 tahoe 5.3 flex fuel set up. I sent my ECU in to PSI and they sent me a new one with a program and wiring for a 5.3 non flex fuel injection set up (my fault). I changed the injectors to the 25317628 injectors but the fuel rail wont seat as the injectors are now too short, Can i buy the fuel injector spacers and use the stock fuel rail set up?

JoeNova

Most companies don't even bother changing the tune that is on the PCM, they just overwrite the entire thing with one they already have that's similar to what's needed and that's it. That's why your injector data has been changed.

Just switch to non-flex fuel rails. You can find them in both return and returnless. They'll be plastic, and people typically throw them away as fast as they get them so they'll be cheap.

kevincayson

Thanks JoeNova anyone have the plastic rail setup with single feed line they would sell me? I'm in portland oregon

Lonnie Lee

Spacers will work amazon ict Billet or I think dna motoring too cheap and fast shipping
i have an 03 I put these on I used Holley sniper rails but made my owne brackets using the factory mounts my question is do you have the proper hp tuner data for these injectors?


I changed the injectors to the 25317628 injectors but the fuel rail wont seat as the injectors are now too short, Can i buy the fuel injector spacers and use the stock fuel rail set up?[/QUOTE]