Car intermittently losing power.

[Super Coupe]

LMAO at all of this.
WOW.

Anyways. I said fuel filter because this happened to me before on my auto s14. It was obviously getting clogged causing loss of fuel pressure and stumbling here and there. On my other 5 speed s14 my fuel pump I guess was going out, changed it and it was all good. On my 5 speed s13 fuel pump sock was so nasty it was having the exact problem as he was describing.

Sure there are tools to check certain things but seriously what is a few bucks on parts that need to be changed on a 17 yr old car anyways!!!!

Fuel sock $8
Dizzy cap $5
Dizzy rotor $3
Working fuel pump used $10

As for the shifting issue. I would say fluid, maybe lines are getting clogged. There is also a shift sensor on your driver side fender well in the engine compartment (rectangle silver) I cut mine in my auto s14 caused it to stay in gear longer and shift harsh from 1-2.

[BlackPearl07]

I may have found part of the problem with my car. When I bought the car a few months ago, I noticed that the EGR tube (aluminum tube that runs from the EGR valve to the exhaust manifold) was cut near the exhaust manifold. What I didn't notice until yesterday is that the end of the tube coming off the exhaust manifold was crimped (maybe to block off?) and there is about a 6 inch section of the tube missing. I'd like to kill the jackass who thought it was a good idea to do this. Now I'm pretty sure that's why I have a CEL! Anyways, I went to Courtesy Nissan this morning and bought a new EGR tube ($53) and will fix this problem when I get it. I also bought some Lucas Transmission Fix and dumped it in the trans dipstick hole. Trans fluid is still red, so it might have been changed just before I bought the car. Changing engine oil tomorrow and will probably use some sort of synthetic blend to see how the engine runs after that. My last S14, I ran Mobil 1 Synthetic with a Mobil 1 filter. Little bit of work to do this weekend.

[BlackPearl07]

New EGR tube installed and new WIX fuel filter (Z32) installed. Car seems to be running a little better now and not as rough. Will know better in the morning when I get it on the highway to go to MacDill tomorrow. The EGR tube was a chore to get the intake manifold side off. I used a little Liquid Wrench and the thing came right off after a few turns. Nice to have the engine completely sealed up. Hopefully better gas mileage than before. Later!

[Yakuza]

good job , process of elemanation !

[BlackPearl07]

Yeah, thanks for the props, but something is still wrong. I thought I had the problem fixed with putting in the new EGR tube. Now the car feels like it is trying to stall while I'm driving it. I'm at a loss right now, but am thinking of possibly changing cap/rotor and maybe a new MAF? If I could just get the damn thing to run great instead of ok. Even thinking of dropping it at Z-Fever and letting them take a look at it. The only time I have to do anything with the car is mostly at night and after working al day long, I don't feel like screwing around with fixing cars. Engine runs strong (seems like it), but is just trying to stall once in a while. Any further suggestions?

[Super Coupe]

Unplug the MAF, see if the car wants to stall. Car will be in limp mode so it wont go above I think 2500 or 3500 rpm. But it should idle fine.

Have you checked out the fuel pump?

[BlackPearl07]

Fuel pump is next on the list. What is an easy way to tell if the fuel pump is bad? Also, I'm going to replace the cap and rotor since the car has over 155,000 mils on it and it's probably never been changed. Basically, it feels like the car isn't getting enough fuel at times. Also, it seems like the fuel mileage is suffering as well. These could be signs of a bad pump. If I have to change the fuel pump out, how hard is it for a novice person like myself to do? I also have the hardcopy FSM for the car. Thanks for all the help fellas!