Jump to content
SAU Community

Recommended Posts

Hi

I have just got fitted up with a power FC and I'm running the base map for now until I get tuned, I'm in perths south and the weather here is getting pretty cold, anyway when I give full noise coming up to redline I get the check eng light flashing, along with the cat temp light on solid and my injector duty goes to 100% and the AFM voltage is getting really close to 5.0v and it feels like I'm hitting a brick wall. I know the eng light is coming on because of the AFM voltage but I'm not sure what the cat temp light is for, I don't have the cat temp sensor fitted anymore.

I'm running 10psi on stock turbo with full exhaust Fmic ect and a k&n filter with stock air box and snorkel.

I know these AFM are a Hotwire type so can the cold air affect the output signal?

I know im not leaning out or anything silly cause I have a wideband gauge running constantly in the car, also my afr on wot is constant 10.1 afr

I have ordered a z32 to overcome this problem and because the car is going to see some more mods in the next few months. Although I didn't think the stock AFM would max out with what's been done to the car so far..

Anyway I have searched through the forums for a while to no avail.

Link to comment
https://www.sau.com.au/forums/topic/405688-afm-maxing-out-cold-weather/
Share on other sites

I have just got fitted up with a power FC and I'm running the base map for now until I get tuned,

I'm in perths south and the weather here is getting pretty cold, anyway when I give full noise coming up to redline I get the check eng light flashing,

Ummm dude... You are running with an un-tuned car.

What you are seeing is the car knocking it's ass off, because it's not tuned. Just because the AFR's are 10:1 doesn't mean it's not detonating.

The base map, is just that. A basis to start from. Simply put you turn the key and then tune the car. You do not go flogging it on the base map... It's a sure fire way to kill your motor. In fact you might have already done irreversable damage...

So you've got two choices really.

1. Stop doing it and drive below 3000rpm and off-boost until it's tuned (sensible person option)

2. Keep doing it and potentially blow the motor, before it's tuned (not so sensible person option).

Hmmm ok, I was told by a tuner in Perth that running a base map of the pfc was safe "just keep watch of your AFR's" what the hell!

Ok then if what your saying is right then I'm parking it up...

Cheers

You shouldn't max the stock AFM with the stock turbo - or injectors for that matter.

So the engine light flashing means there is definately something up.

You can drive it, just don't flog the ass out of it. 3000rpm and light throttle = no worries.

Safe to run as in drive off boost down to the tuner yes not limiter bash it.

Biggest misconception people have is the whole "plug and play" part of aftermarket ECU's - a Base map as stated above is a map loaded with values that are enough to turn the key and drive the car pre boost.

I have come to learn that whenever boost is involved the ammount of parameters that need to be spot on are numerous and making a mistake with them can be catastrophic,

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...