Power FC idle

[Guest KILLER-T]

If anyone else has the time would you mind putting up the first two or 3 lines of their inj map so i can see if they all have higher numbers in the first line of their maps

[MetBlue_GTST]

whatsisname is right, it is the VCT kicking in... Good thing with my Autronic is i can adjust when it kicks in and turns off... I had a problem initially where the car was idling and the VCT was turning on and off....

[Steve]

Killer T,

First Line: 100/100/100/101/102/103/101/100/100/101/103/101/100/115/119/125/125/125/125/125

Second line is the same

third line:

100/100/99/101/97/102/100/.....there after as for line one and two.

A bit different from yours, I am running a Z32 AFM as well, so that may be influencing things. My AF ratios are a pretty constant 12.3:1 and I get no detonation even on hot days running 0.85bar boost.

[Guest KILLER-T]

Cool thanx Steve im running a z32 afm too but with a little bit more boost i have decided to get it on a dyno to see wtf is going on

[Joe]

sorry late reply,

but did u end up getting it fixed?...

i have the same problem

funny thing is that it goes to normal after a 30min drive but sometime it doesnt, its so unpredictable

most of the time i feel like pulling my hair out & packing the power fc away & put back in the factory ecu & some other days i dont take notice of it at all.

it normally goes 1200rpm then drops back to 750rpm then rise again.

Some people has said it was the wrong selection of your AFM, my settings on afm meters are correct so i dont know.

If you have solved the mysterious idle problem please let me know

[Guest KILLER-T]

Yep i fixed it

step 1 pull plenum off through in bin

step 2 pull all the bullshit idle controll stuff of and through in bin

step 3 bolt on nice sub zero plenum

if you follow these instructions your car will idle perfect like mine

[no_name]

ive known a few powerFC's to hunt at idle. mine is good with a Z32 AFM.

the fuel maps should be very close to the 100 setting for a car with stock cams. the higher the number the richer so if your car is cammed then add a bit more fuel to stabilise it.

check the temperature compensation. sometimes if the idle is rich and the temp compensation kicks in the idle deteriorates.

check the temperature the engine is running at. (see above)

rb25 should idle with 15 degrees timing. if i recolect. check this too in the ignition map.

check what the timing is with a light. if the reading on the crankisnt the one on the map then you should correct this.

check the fuel cut recovery points and idle speed.

pawL.