Help. EGR issue

[geckoboy86]

I got a CEL. Its the P0400 which is Exhaust Gas Recirculation Flow Malfunction. I dont have the money to replace it right now with a new one.

Any ideas or suggestions to do right now?
I have an EJ22 engine. Would any other models EGR fit on my engine?

[Huffer]

http://www.obd-codes.com/p0400


Since EGR valve designs are different, no one test will suffice:

* Using a scan tool, operate the EGR valve with the engine running. If the engine stumbles, the problem was likely intermittent wiring problem or intermittent blockage problem
* If engine doesn't stumble, operate the EGR valve manually, if possible. If engine doesn't stumble and die, the ports are likely plugged. Removal of valve and cleaning of all ports will be required
* Checking of solenoid can only usually be done with a scan tool, because most solenoids operate with a duty cycle of voltage, rather than constant voltage
* Check all vacuum lines, hoses, etc for any damage
* Visually inspect the solenoid harness and the solenoid for damage
* Replace EGR valve