93 240sx TDC 33 code, Jumps and Sputters

[NismoTypeX]

Wondering if anyone knows if this code means there is a problem with the EGR valve...(stuck open?) Anyhow the car starts up and idles strong till you hit the throttle Bogs down and acts like a bad MAF however I swaped Maf's off of my 91, and swap Harnesses and swaped the ECU no change, Drained a 3/4 tank of gas (thinking could be bad Gas) and filled up with a new fuel filter....No change, Im stuck and I need help ..... I have another KA that im building....but im not tring to swap my engine this soon , Its my daily driver so its hurtin me bad.. so let me know if anyone has anymore options

[theother1wstolen]

have you checked your fuel pressure?

[NismoTypeX]

No but I gotta walburo fuel pump as a spare that I can try out... does kinda make sense I spray Started fluid in the air intake it revs fine and strong what am I getting a code for though?

[jetroy240]

possible egr gallery full of carbon deposits, try to disconnect the egr valve vacuum hose, plug & test drive it. If sputtering goes away, the ports are restricted. You can clean it, if u can remove the 4 freeze plugs at the intake& poked the ports. code 33 is for O2 sensor, possible u got a bad O2 sensor only, to test it, u need a digital volmeter. It's a 0-1 volt range. At engine warmup voltage should be around .3 to .8 volt fluctuations @ idle & high rpm.
Modified by jetroy240 at 6:57 PM 2/29/2008

[NismoTypeX]

would anything bad happen besides bad gas mileage if I made a block off plate and blocked the egr totally???? because I plan to do so anyway on my new motor w/turbo...

[jetroy240]

probably just a bad ground at the MAF too, u can test the black wire (ground) at the MAF w/ a digital voltmeter. Put the black lead of voltmeter to the negative terminal of battery & the red lead to the ground wire of the MAF , u should get at least 0.002 volt at least up to 3 decimals, it's a little high if ur getting 0.02 to 0.10 more or less. solder a ground wire there at the MAF ground wire & bolt it anywhere near the cylinder head ground wires & retest the voltage again.