need help with diagnstic code

[honeyc_j]

My 96 240 check engine light is staying on, throwing a P0400 code, EGR malfunction Anybody ever dealt with this, I can't get this thing inspected until I can get it fixed. I have the luxury of the emisiin testing wher I am at Any help greatly appreciated Thanks!

[audtatious]

http://www.nicoclub.com/FSM/240sx/1998/ec.pdf

Page 243. Hopefully this helps give some direction to fixing the problem.

[honeyc_j]

Thanks, I will give it a look,,,,,,,,,,

[Brandon93240]

One of the most common problems for this code is a 90 degree vacuum line that runs from bpt valve to the egr valve, its in tsb's for mitchell and alldata and I replaced quite a few of those while I worked at the dealer. Nissans unlike Hondas usually don't have major egr problems.

[honeyc_j]

I will try that first, seems to be the simplest and cheapest way to start. Can you get that hose ay any autoparts, or is it dealer only? Thanks for the info..........Jason

[Brandon93240]

You'd be best getting it from the dealer, its not expensive, plus it has an almost 90 degree close radius turn in it. If you use regular vacuum hose that isn't formed it may collapse on its self causing the code to be thrown again. If you have some really sturdy silicone hose I'd use that over regular autozone vac. hose.

[little240]

sounds like the egr valve might be stuck try taking it off and cleaning it with choke cleaner

[honeyc_j]

Thanks for the info!! Do you know the best way to take the EGR valve off ? It looks like there is an exhaust tube or something that goes into it, and I haven't been succesfull even getting a wrench on it. Any suggestions