Power Fc - Engine Light, But Not Due To Knock

[Trav33]

Hey guys, i've tried to search for the answer (cause i've seen it somewhere before!), but cant find it, and Pauls PowerFC resources are down...

My engine light is coming on under full throttle - sometimes when im sliding a bit.

Its not knock - cause i look at the max value on my controller, and its only 15 or so. I dont think its speed, cause max speed was only 80 something...

What other things will cause the PowerFC to light up the engine light?

[mattymagoo22]

injector duty cycle above 90% i think and air flow meter above 5V you can turn them off in the etc section

[Trav33]

injector duty cycle above 90%

That might be it!

It the duty cycle something set by the tuner, or determined by the powerfc to get enough fuel into the engine?

[jazza08]

Duty cycle is dependant on how hard your pushing ur injectors. You can view it in the monitor bit on the hand controller, mine comes on in later gears above 90%ish too. Just becareful you don't get a boost spike or somethin on a cold night n not be able to put enough fuel into the motor! Hopefully its not running much above 90% for you.

[paulr33]

its covered in the PFC FAQ (in my sig) but here is what can turn the engine light on;

factory sensors - value is out of range, not working or faulty

knocking over 60

injector duty over 98%

airflow meter max 5.0v

so if your TPS dies it will throw on the check light and highlight TPS under SENSOR/SW CHECK in black

if the AFM dies it will throw on the check light and highlight AFM1 under SENSOR/SW CHECK in black

[Trav33]

Paul - i know its in your powerfc resource, i mentioned that in my first post, but if you click on the link in your signature you'll notice its not working, due to sau site upgrades.

Ta for the reply, i will look closely at my powerfc sensor values to see what it might be.

Is there another link that works to get to your powerfc resource? I remember seeing some pics of how ppl had pulled apart their controllers and mounted their LCD+buttons.

Edited May 13, 2007 by Trav33

[paulr33]

oh didnt kbnow it was down, my bad sorry

[Trav33]

No probs, its a great resource, i refer to it for something every couple of weeks. I should keep it in my offline favourites, so windows keeps a copy in my cache!

[ahh 33 s2]

yeh when i first got my pfc i had my engine light flash 3 times at me when i was putting the foot down. i got a z32 afm so i was told it was the injectors

[RBwhatever]

So paul, my rb25 AFM hits about 5005mV, I hear they max out at 5100mV yes? Hitting 5V is aOK?

I've just got a turbo-back exhaust, fmic, pod, 12psi, PFC, stock pump & injectors and I'm only getting 82% inj duty cycle, knock reads 15 max. I know the knock is safe and apparently the inj duty is all cool to.

Is all that in the norm to you?

Cheers

[paulr33]

yes its fine as long as u dont plan any more mods

[RBwhatever]

cool, thanks. Though the warning light would probably flash for the afm I don't need to worry about it do I.

Edited May 14, 2007 by KeyMakeR33