ok so i have my engine back together for the 3rd time (it looks promising =) however im leaking gas from either the fuel injector or the fuel rail. i have taken out he injectors and put knew rings in them and it seemed to have stopped but then a few minutes later i had a small puddle under the car again ? has this happened to anyone b4 ? the injectors are s4s on a s5 i had to splice the harness and they're 720s dont know if that helps.

 

Use vaseline on the o'rings prior to installing them.

Next time, install the injectors, then prior to installing the intake manifold, key to On and jumper the yellow check connector and wait for ten minutes to see if you have any leaks.

The series four and series five are the same physical size and should be no problem.

 

Check the FPD on the primary fuel rail. Easiest way to find the leak is to leave the UIM off and let the fuel system prime. you should be able to find the leak.

 

i took the intake off last night i could hear this sound... like when your drinking with a straw and it makes that sound as if either the system was sucking in air or the fuel was escaping by the injector. i didnt have any vaseline for the injector rings so i used some left over oil as lube so they wouldent get cut.

 

ok good news the fuel rail leak is fixed. it turns out it was water and antifreeze that was mixing with the left over gas and i thought it was still a gas leak, the water leak has also been takin care of