PFC knock + Engine light

[itbmils]

OK

Let me just say - I DON'T UNDERSTAND

I have just fit a PFC to my R32 GTR - and have been keeping an eye on things

After adding some octane booster - my peak knock is now under 40 (read : 32) - even when driving VERY hard

BUT

I still notice the engine light comes on - usually at high RPM (7000+)

What does this mean - I thought the engine light was triggered by a knock reading of more the 60

what the ?

What else causes the engine light to flash ?

[Amaru]

From what I have heard, newer software releases trigger the warning at 40 (unconfirmed by myself though).

On a side note, you shouldnt be driving/flogging a GTR on a base tune power fc, it specifically states in the manual (im pretty sure its in english) to drive it straight to a tuning shop.

[wrxhoon]

Did you check the injector duty ?

[itbmils]

From what I have heard, newer software releases trigger the warning at 40 (unconfirmed by myself though).

On a side note, you shouldnt be driving/flogging a GTR on a base tune power fc, it specifically states in the manual (im pretty sure its in english) to drive it straight to a tuning shop.

NOT a base tune dude - pulled 304awkw @ Maxfix

I'll check injectors too next time

[Sydneykid]

Power Fc's have Injector warning (for high duration), Knock warning (for excessive preignition) and Airflow warning (for excessive airflow). All of these have threshholds that trigger the dash warning light. The threshholds are adjustable.

High rpm could be either excessive injector duty or excessive airflow. Set the Commander into Monitor mode and check the readouts. From memory the default threshholds are;

1. Injectors 98.0

2. Knock 60

3 AFM 1020

Hope that was of some help:cheers:

[itbmils]

cool

thanks for the help - will check those readings next time

[paulr33]

taken from: http://members.dodo.com.au/paul/docs/power...powerfc-faq.htm

Why does my engine light flash when I drive with the PowerFC?

The PowerFC uses the factory engine warning light to alert the user of "upper limit" or ceiling values in the engine systems.

Things such as airflow meter max value, injector max duty, excessive knock will cause the engine warning to flash. Usually the engine flash is

in a sequence of 3 flashes each 0.5 seconds apart. Should you experience this you should review the hand controller max values (press down when

in monitor mode and displaying values to see the max values for each) and consult your tuner immediately. Excessively high knock can cause

engine damage. Running on max injector duty can also be fatal so speak to your tuner. Aggressive tunes in winter tuned around winter

temps/airflow and being run hard in summer may cause these symptoms if the tune is very aggressive and on border line of maxing out the

stock components. This is only hearsay but I have seen this from at least one or two members.