Fouled spark plugs = no start

[Antone]

I own a bone stock 1992 Nissan 240sx.
This is my problem. My spark plugs are getting fouled. new plugs lasted me 2 weeks. And because of this, they wont allow the car to start. Im throwing a knock sensor code and an egr temperature sensor code. One shop is sure that if i replace these parts this will stop the plugs from getting fouled. Another mechanic told me that i have bad fuel injectors and possibly a fuel pressure regulator. The compression tested fine in all cyl, and the car is completely stock.
this is what its doing to the plugs. Anybody else have a similar problem?
http://i11.photobucket.com/albums/a173/Fluxywuxy/S3010621.jpg
http://i11.photobucket.com/albums/a173/Fluxywuxy/S3010622.jpg
http://i11.photobucket.com/albums/a173/Fluxywuxy/S3010620.jpg

Any info would help me out alot because i just want to make sure i know whats wrong before i start to buy shit. :thumbup:

[mobilesuit818]

I would check your injectors.
Leaky injectors would do that.

[rancid240]

egr temperature sensor code? you mean coolant temp sensor? If its the latter definitely replace that, its a few dollars and a malfunctioning one will cause the car to run rich.

You can also easily check for leaky injectors by pulling the fuel rail with the injectors inside. dont unplug any fuel or vacuum lines. then turn the key to on and watch to see if the injectors are leaking.