So i have a fuel leak in my car. The leak starts about 1 min after i start the car. It starts to pool under the throttle body and then down to the ground. I thought it was soem bad fuel injector seals but we pulled off the throttle body and saw no gas around them. Any ideas??

1988 RX7 Turbo II

 

Two words--pulsation damper. Common problem, especially with the S4's, and something you need to repair immediately before the fire starts. DO NOT run the engine until the problem is fixed. Do a search on pusation damper and you will find many, many threads dealing with this problem.

 

Is this a simple fix or a spendy and legnthy project?

 

Have you tried the fuel filter connections ? Move up from there, would be the better way to go around doing it as it is the first thing the fuel lines sees after the tank.

 

Not simple, but not too difficult if you are the least bit mechanically inclined. Ya gotta remove the throttle body, dynamic chamber and upper intake manifold (UIM) to get to the primary fuel injector rail. The PD is integrated with the primary fuel rail. If you have an S4 you can replace the PD or eliminate it (search forum for instructions). If the car is an S5 you will need to replace the fuel rail. (Hint: get a free copy of the factory service manual at one of the links in the 2nd gen FAQ.)

So, whether you do this repair or you have someone else do it, you might as well do a few other things while you have things disassembled. Namely, send off the injectors and have them cleaned, tested and refurbished, replace the high-pressure fuel hoses that feed the fuel rails, replace all vacuum hoses/air hoses under the UIM, and of course, new gaskets and sealer all around. (Hint: take pics as you disassemble so that you get all the pieces, especially the vacuum and air hoses, back together correctly.)