Maxima MAF - Did it give you guys these problems??

[krimsonviper]

Threads merged.

[CanuckQx4]

can you not have just deleted the old one, I got no hits or help with the last title, and now it has that title again and all the bs and misinformation at the top. I tried to get the power loss thread removed when I made this new one. To no avail, thanks

[alexf20c]

Can anyone give me some insight on what the problem is??

the problem is you attempted to fix something that you had no business dealing with. leave it to someone that knows what they're doing.

[alexf20c]

Why don't you PM me your A/S/L because it sounds like you have a crush on me also. You're a pathetic excuse for a moderator and your "moderating" is anything but. Do what you gotta do; ban me if you need to. At least then you will deserve your title as "moderator."

[krimsonviper]

Why don't you PM me your A/S/L because it sounds like you have a crush on me also. You're a pathetic excuse for a moderator and your "moderating" is anything but. Do what you gotta do; ban me if you need to. At least then you will deserve your title as "moderator."

2 Week vacation. Plenty of enough time to cool down.

[CanuckQx4]

thank you

[Pwnin O'Brien]

CanuckQx4, to address your initial concern I have done some research into your issue. Firstly, the part number is correct, it is a valid replacement for your MAF sensor. Secondly, the fifth pin is normal. The fifth pin should be there even though there is no wire on the harness for it. No Pathfinders/QX4's/Maximas ever used a five pin MAF system, they are all 4 pins, so you don't have to worry. Now, the P1165 code is not related to your MAF sensor, it is for the swirl control valve control vacuum check switch; this code is in no way related to your MAF, but I would venture to say that it is related to that screw stuck in that hose (although I'm still not 100% sure what that hose is, so this is just an educated guess). As far as the P0100, I'm pretty stumped. The P0100 is causing the limp home mode. As far as the P0100 I would recommend checking the harness to make sure it is secure and ensure you have no air leakage on your intake tube.

I would recommend clearing the ECU again, ensuring a complete reset. I have combed through the FSM for the '01 QX4 and Pathfinder to find the official ECU method but they didn't seem to include it in the older FSMs. A word of advice, it took my Pathfinder three days with a disconnected battery to completely clear my ECU, make sure you have COMPLETELY erased the ECU. When you turn the key (without starting the vehicle) right after the ECU clear the Check Engine Soon lamp should turn off, this will let you know that the ECU has cleared the old P0100 and P1165 codes. Once you have reset the ECU, perform the Idle Air Volume Learning Procedure on page EC-56 of the "Engine Control System.pdf" file from your FSM.

Is your ECU under your passenger seat? If so, then you probably have the old screwdriver method of clearing your ECU. If the ECU reset has no effect or the Idle Air Volume Relearning has no effect then let me know.

P.S. No, the Check Engine Soon lamp will not blink during Idle Air Volume Relearning. Be sure to closely follow the steps outlined for the procedure as one misstep will result in a failure.

[Towncivilian]

Is your ECU under your passenger seat?

IIRC, 01 Pathfinders don't have anything but carpet underneath the passenger seat.

[CanuckQx4]

Lot of info there!! My main concern is the ECU reset, I will look under the passenger seat to check for the ecu. I did disconnect my battery for a night and touch the terminals together, but I was unsure if it "reset". You just mentiooned a great way to verify though, I was usually clearing the codes, so the light was already off. I guess I can pull the battery with the check engine light still on and when I connect the battery, if the ECU has reset itself, the light will just be gone when I turn the key right?

For the P1165, it does still throw the code, but I have verified the correct vacuum hose is going to the swirl valve, and I even replaced it with new 4mm hose. The cut off and blocked vacuum line is supposed to go to a nipple on the airbox near the filter. I am debating threading a barb into my cold air intake just to run the line to this.

This MAF code sucks though, I definetely have tight connections, and no leaks in the upstream tube. What bothers me is that the others dont have the problem when using this same sensor. Which makes me think its my car. But then I put my factory MAF back in, and there is no "problem" code. Making me think my car is fine and its somehow the sensor.

Thanks pwnin

[Pwnin O'Brien]

Ok, so the P1165 is caused by that little cylindrical part that sits right above your front driver side strut mount next to the brake fluid reservoir; it will also have a two-wire harness (with BLACK and WHITE/BLUE wires) connected to the back of it. It should have a small hose coming from the front of it. That small hose was another hose that connects to the air intake tube (it connected to the air intake tube right next to that hose that had the screw in it). Ensure that hose is not missing and/or plugged as well.

[CanuckQx4]

I follow this reference pic I found on this forum earlier this weekend



That is how mine is run and setup, only a single vacuum line going to the front of the engine, and its 2 wire connector. You confused me with your second last sentece a bit though, should there be a second hose to it?

[CanuckQx4]

And you can see in the above picture to, how he disconnected his intake box and placed it on the engine, you can see the vacuum line connected to the bottom of it, that is the line that is plugged on my engine, and runs to the same spot on the engine as his does in the picture. (*mine is just plugged 4" after it comes off the engine like you know since I dont have the airbox anymore*

[AZhitman]

2 Week vacation. Plenty of enough time to cool down.

Overruled.

Perma-ban, with an IP twist. Feel free to follow tantrum-boy around. He forgets, I know most other major forum owners... Gonna run out of places to hang out, Alexis.

http://www.google.com/search?sourceid=c ... 0gmail.com

[Empty V]

Perma-ban, with an IP twist.

What took you so long?

[CanuckQx4]

car is still going into limp mode

[CanuckQx4]

Didnt go into limp for 2 days, then it did again tonight on a long straight drive!!

Why the hell is it doing this to me!!

[CanuckQx4]

[donald]

ok - n00b suggestion

RE: P0100 Mass or Volume Air flow Circuit Malfunction code
have you tried/ensured that the electrical connection is clean? Sometimes gunk or buildup between connector and OLD MAF may make connection bad. Spray some electric cleaner in there. If you use WD40 to spray clean it - make sure it's dry before you re-connect.

[CanuckQx4]

Connection is good, I put the old maf back in and I get no errors other than poor idle and gas mileage (reason why I wanted to change sensors)

Thanks though

I bought a can of sensor cleaner today, I think Im just gonna go ahead and clean the old one and still use it.