hmm. I didnt realize there was a PS cooler. I checked again and the lines DEFINITELY are going to some thing PS related. The hardline coming from the pump goes upward and there is some sort of fitting which the 2 lines come off of ending sort of in the intake manifold area. Its kind of like a "T" where the hoses are because the hardline continues up towards the reservoir I think, or somewhere over there.
I will get a picture tomorrow for sure..my phone wasn't able to capture it in that dark area.

 

no confirmation on the fuel pressure ordeal? It looks like the 3.0 was a return system however where the 3.5 rail was not.
here are pictures of the vacuum lines in question.

 

So again, sure they don't go to the PS cooler?

Also - http://forums.maxima.org/all-motor/4...re-51-psi.html

Wait a second, you're in that thread

You can't not have an FPR, you've gotta have one somewhere.

 

i sure am huh. dang. The stock rail has a FPR built into it though, right? I was just exploring an alternative...I probably wont bother with it. . I'm waiting on this FPR to arrive and its taking forever, i want to start the car asap.

I am completely unfamiliar with a PS cooler system. but doesnt that power steering plug need...to be connected to a harness or something?? i have no harnesses to plug into it.

I just fabricated a pretty nifty TPS bracket, I'll post pics later.

 

Not built in, but the FPR bolts on to it.

There's either a cooler or a loop of hose in front of the condenser, depending on trim. IIRC only the SE had the cooler, or just the SE/GXE. The hard lines going up front will be there regardless, though.

You can see all of the piping here:



And for those without a cooler:

 

thanks, but those are for the 4th gen, this car is a 01. I just found the courtesy diagrams for the power steering piping and that piece which the vacuum lines go to is called "valve assy air control" shown in the upper middle of the picture.

part number : 49762+A

I cant get the damn 01 FSM to see what that is about. It seems like it takes vacuum from the intake manifold but I'm afraid I'm not going to have enough connections on the intake manifold to make it work. so..i wonder how important it is.

 

interesting 01's had vac assisted PS?

 

seems like something the iacv would have controlled.

 

Ah, forgot you were a 5th gen.

Interesting...

 

so he'll just need two vac souces from somewhere on the IM?

if so chilin you could tap the IM (twice) with barb fittings and use that as a vac source..

 

I'd bet that one of them is a ported vacuum source, or something different. Two vac lines wouldn't make much sense.

 

good point....

 

Some interesting reading:
http://forums.maxima.org/5th-generat...operation.html

Not many references to it, interestingly enough. Never heard about it before now.

 

thats what I was thinking too...why is there two. I cant tell where the lines go to on the 00vi. Do you think the power steering just wont work at all if I leave them open?

edit- reading

 

so does one go to the intake tubing and one to the manifold itself? The thing is...there wont be a IACV on this car so if that valve works in conjunction with the iacv or something..it wont matter if the lines are connected or not. right?

 

interesting...never knew that about the 2k1's

 

this is where the top hose ends up and where the bottom hose ends up.

 

that top picture looks like its just going to a port on the intake manifold. I dont know if anyone can confirm otherwise (whether there is maybe a valve in that little nipple or what). I'm starting to think maybe one line went to the intake manifold and one just went to the intake piping itself. If thats the case, it will be easy to hook up.

 

is there any way to tap into the CTS for the gauge? the 3.5 coolant log doesnt have that gauge and I want to make sure the car isn't overheating.

I was getting alot of smoke upon start up and let it run for a few minutes. I was thinking "oh just grease from my hands on the exhaust"..but after a few minutes I began to wonder. Well I look under the car after i turn it off and there is like a small puddle of...what looks like old oil. It could have been old power steering fluid, it was hard to tell because it mixed with a puddle of brake fluid and I cant smell with a stuffed nose. There was fluid dripping on the y pipe from directly under the middle of the oil pan. But I could not find a leak any where. I've started the car since then and there is no longer any smoke or leaking.

I dont know how much fluid the power steering system can hold (couldnt find it in the fsm) but I would fill up the reservoir and it would go down almost all the way. It did it probably 2 or 3 times, it doesnt seem to be doing it anymore.

I'm about to install the FPR and inspect it some more while running.

 

Not really, unless you find a gauge that uses the same resistance spec as the ECTS. The A33B+ send the coolant temp to the cluster from the ECU, so they don't have a seperate gauge temp sensor.

As far as PS capacity:

 

you are mr.info, you got it all. That would make more sense then.

I guess I could always drill for that sensor, although for all that effort its more worthwhile to just switch to the 4th gen one. The only reason I didnt is because the old motor had that weird attachment that went to the block.

back to the shop, hopefully the mystery leak has disappeared for good.

 

I cant tell if I have the FPR hooked up right or not (the damn gauge on it doesnt work). The car runs, idles fine, revs up normal, but when I go to accelerate in gear it hesitates at around 1500 rpm, almost like a launch control or something. It even does it in reverse.

I have the fuel line T'd and it feeds the rail, then off the T it goes up to the FPR and flows as shown in the picture. Is this correct? I'm pissed that this gauge doesnt work.

 

okay this looks opposite of how i have it on my car, but the fpr is a little different shaped. it should be exiting opposite the fuel pressure adjuster?

 

alright, I flipped the lines the right way and now the gauge works. It still does the weird hesitation thing and then continues up the revs. Its pretty low on gas but not completely empty...I would love if that was what was wrong. The FPR shows that it holds pressure when revved although with the car off it seems to lose pressure faster than the one in my car.
I will try swapping them out but I dont really know what else it could be. The TPS is in spec, the throttle cable is not mounted to the firewall although it does sit against it past its mounting bracket...I dont see how that would effect the throttle. Maxima713 is on his way to pick up the car right now.

 

I dont think its the FPR and it wasn't the gas either. It does it at PRECISELY 1500 rpm in first gear every time (and reverse) but very very rarely does it occur in any other gear. I want to say its the TPS, but why would it do it in first gear only?

I've read from a few different sources that this is somewhat of a "common" problem with this 5speed 5th gen. There is even some huge thread about it at townhall.edmunds which is like 9 years old but seems to kind of describe what is happening here. http://townhall.edmunds.com/direct/view/.ee99968/2
The car bucks like some sort of fuel cut is occurring, but no IACV is present on this vehicle.


and here is another thread, with absolutely no conclusion http://www.justanswer.com/questions/...0l-5-speed-car how discouraging.

 

I got a ? I have a 2000 that i drive that has been wrecked.. found a 02 that has a bad engine... I can't afford to buy the car and rebuild the engine right now. As stupid as this sounds what do I have to do to put my 2000 engine into the 02. I need to know what all has to be done.. I have 2 hrs to buy this car if it can be done slightly easy till I rebuild the other for a possible turbo build.