Tools Needed:12mm SocketPhillips ScrewdriverSmall Screwdriver for getting metal clips off injector connectorsScissors/Knife (If you are replacing fuel hoses)
Step 1:Relieve the fuel pressure by pulling the fuse while the car is running, then cranking over for 5 seconds after the car dies. Leave the negative cable connected to avoid sparking during re-installation
Step 2: Remove the BPT valve and all hose connections. This is a round valve right on top of the fuel rail, and it is held on by (2) 12mm bolts with washers. It comes easily off once all the hose connections are taken off.
Step 3:Disconnect the hose connections going to the fuel rail, held on by Phillips screw hose clamps. If you are replacing the fuel hose, go ahead and cut it, just be prepared for gas to leak out.
Step 4:Unbolt the fuel rail. It is held on by (2) 12mm bolts with washers. This should pull straight out, and pull off the injectors once free.
Step 5:Disconnect the injectors from the electrical connectors going to the main harness. This was the hardest part of the install for me, because there is a small metal U-shaped clip going around the connector that had to be undone. I did not see this until I took a break and came back and saw them. You can use a very small screwdriver or a similar tool to take off the clip. Once that is out, the injectors should come right off the connectors.
Installation is the reverse of removal. Each new injector should have insulators on the top and bottom and a new O-ring on the top. Don't forget to lube up the new O-ring with oil or grease before you install them into the fuel rail. Also, make sure you stick the new injectors perfectly straight into the fuel rail, or else you will distort them and cause huge gas leaks. The injectors should also push straight into the holes in the manifold.
I've barely driven it since I did it this morning, but from what I feel so far it feels like some lost power has been restored, as the air/fuel mixture has returned to normal. The god-awful gas smell inside the car is gone too. Anyone with leaky injectors should do this ASAP, in order to avoid fires under the hood.
Total time spent: 1 hour 30 minutes (due to the metal clips on the connectors.) Questions or comments, email me at [email protected]
