Jump to content
SAU Community

Recommended Posts

Hi guys,

I took my car to the mechanic and he showed me that my 2 air flow meter plugs where disconnected.. He said that this would affect the air flow mixtures and possibly even power output.

Since my car isnt running properly now there is no way to test if this would increase my power now that they are plugged in.

SO what affect would unplugged air flow meters have on a cars preformance, just more fuel bieng pumped into the engine yeah?

Link to comment
https://www.sau.com.au/forums/topic/220638-installed-my-apexi-pod-filters/
Share on other sites

rev limit = 2500rpm

I'm confused buddy, your saying that it would only rev to 2500 rpm?

But i was redlining it no problems, and it didnt feel like i had lost any power to be honest with you.

I didnt even notice the difference than from the stock air box.

with standard ECU and standard setup if you unplug the airflow meters the RPM will cap at 2500rpm and it will be limp mode

there is no way known the stock ECU would run std maps with airflow meters unplugged, its suicide and the engine has no idea how much air is coming in

double check again or maybe you have some wierd remapped std ecu with a map sensor hack / hks vein setup or something look

look for map sensors and crazy wiring if thats the case

and are you sure he said air flow meters?

it could have been 02 sensors, they are on the dump pipes, the airflow meters are pink labelled plastic things on the air intake pipes

if it was the 02 sensors, the car will run fine, it will just waste a bit of fuel on cruise and your economy wont be the best - no power gain by reconnecting them

with standard ECU and standard setup if you unplug the airflow meters the RPM will cap at 2500rpm and it will be limp mode

there is no way known the stock ECU would run std maps with airflow meters unplugged, its suicide and the engine has no idea how much air is coming in

double check again or maybe you have some weird remapped std ecu with a map sensor hack / hks vein setup or something look

look for map sensors and crazy wiring if thats the case

Thanks man, i have gone an investigated everything you recommended.

First of all i must have a stock ecu as it has the Nissan seal is still on it:

But someone has cut a red wire from it and tapped up the end so it doesn't short anywhere.. what is this wire and why would they do this? take a look:

post-49206-1211601180_thumb.jpg

Also the i have circled in red the 2 plugs they found disconnected this morning:

post-49206-1211600948_thumb.jpg

I think we are getting closer to an answer thanks again!

see my pic - ive circled in red the true AFM plug, trace where the wires go

post-2054-1211604327_thumb.jpg

Good news i traced the wire back and its just the O2 sensor.

Ow well no extra power from plugging it in then.. :P

seen that red wire cut before on the ECU before?

cheers for your help buddy.

no worries - yeah 02 sensors unplugged wont cause harm, but you should plug them in, get some better economy

the red wire could be anything - its probably the speed cut wire, does it the stock ecu cap out at 180km/h on the track?

no worries - yeah 02 sensors unplugged wont cause harm, but you should plug them in, get some better economy

the red wire could be anything - its probably the speed cut wire, does it the stock ecu cap out at 180km/h on the track?

Yeah thats what i thought straight away too.. i havent been to the track yet to test 180km/hr speed cut.

I really want to head down to the track actually so i might become a SAU paying member since i hear they organise heaps of that stuff quite frequently.

The dudes got a PFC ne way so... :)

Actually dont have one yet, but i am trying to source one atm. Waiting on a few PM's from ppl selling on here.

Thanks for the confirmation of the speed cut wire too nismoid.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • For these last 7 years of ownership, I've always had to use a small scissor jack under one of the front tow hooks to raise the front just enough so my low-profile jack fits under to reach my subframe jack point. I'm beginning to get annoyed of always having to do this. Are there any lower low-profile jacks that fit under the gtr lip on a dropped car?
    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
×
×
  • Create New...