Number and location of the fuel filters/strainers in a CIS system?

[DavErb]

From reading these forums I've got the impression that theres a lot of filters/screens to get clogged in an SC.

Is this list about right?

1) At the fuel pickup in the tank (not sure about this one)
2) At the fuel pump
3) the main fuel filter
4) ? at the fuel distributer? On the intake line or on the pressure control line? Or on the outlet lines?
5) Each individual injector has some kind of screen built in
6) in the WUR

At least I think this about covers it. I'm not having any problem so far but it would be nice to know where all the little clogs are likely to form

[RWebb]

#1 = bronze screen or something similar

[Steve@Rennsport]

Dave:

Here's a list for you:

1) Inlet screen at the fuel pickup in the tank. This is a replaceable nylon filter unit accessed from the bottom of the tank an d part of the hex plug.

2) Main fuel filter in engine compartment.

3) Small brass screens in each CIS injector. These require the special Bosch fixture to clean them and if they are really clogged, one simply installs new injectors.