Powerfc Tune

[Dose Pipe Sutututu]

dw about it paulr33, don't take it to heart.. just watch and enjoy the read... especially when he posts up a new thread "I need my engine rebuilt"

[ZXY]

for those who cant be bothered reading

the engine check light comes on and flashes differently for the following reasons

a sensor out of range or failed - ie water temp sensor, airflow meter, tps - which ever is dead will be highlighted in ETC, SENSOR SW CHECK on the hand controller

injectors reaching 98%

knock exceeding a level of 60

airflow meter reaching 5v

these are defaults on the powerfc and you can change the sequence flash in datalgot, and you can enable/disable the flash on the hand controller via ETC, FUNCTION SELECT

I read that already on your faq. The main reason it could be coming on from the hand controller is the inj-duty reading 100% which i have found out. And as i have said, I am getting the car retuned on thursday and I wont be driving it until then.

[ZXY]

dw about it paulr33, don't take it to heart.. just watch and enjoy the read... especially when he posts up a new thread "I need my engine rebuilt"

thanks for your helpful post

[89CAL]

hmm thought it would have run a bit lean if it was hitting 100% inj duty and you would have seen a little bit of knock, probably luck you didnt anyway lol

yeah get the tunes and/or injectors sorted and should be alright, The atmo bov thing as said, prob wont run 100% with them but should be good enough to drive around with half decent fuel economy, probably try for a plumback bov in the near future but

best of luck with it

[ZXY]

hmm thought it would have run a bit lean if it was hitting 100% inj duty and you would have seen a little bit of knock, probably luck you didnt anyway lol

yeah get the tunes and/or injectors sorted and should be alright, The atmo bov thing as said, prob wont run 100% with them but should be good enough to drive around with half decent fuel economy, probably try for a plumback bov in the near future but

best of luck with it

thanks 89cal. I will look at getting a plumb back in the future. The fuel economy thing is not so important to me atm bcos the car is not a daily but i would like to fix it in future. I havent seen any knock higher than 30 so i guess this is a good thing. Will look at getting some bigger injectors and a fuel pump. Tune on thursday so will see how first.

[STATUS]

just leave it til your tuner plays with it.

[JonnoHR31]

hmm thought it would have run a bit lean if it was hitting 100% inj duty and you would have seen a little bit of knock

provided everythins working properly (ie fuel reg) 100% with a standard turbo would be rather rich. and lean doesnt always induce knock, i've had my car as lean as 17:1 (fuel reg died) at WOT with the same timing as 12:1 with no change in knock.

as said check light will be from inj duty, turn it off in function select if it annoys you

[ZXY]

provided everythins working properly (ie fuel reg) 100% with a standard turbo would be rather rich. and lean doesnt always induce knock, i've had my car as lean as 17:1 (fuel reg died) at WOT with the same timing as 12:1 with no change in knock.

as said check light will be from inj duty, turn it off in function select if it annoys you

reading pauls faq, he stated that inj duty at 100% can be fatal though?

[paulr33]

of course it can be fatal, the injectors are at 100%

they cannot physically pump in any more fuel

if you hit max inj duty of 100% at 5000rpm and the engine continues to use more air, it will lean out, which places the engine at risk

no engine or tune should max injectors

if you blip 100% at 6980RPM for a slit second its probably ok

but if you hit 100% much earlier and the engine is more on load progressively, its a timebomb

[ZXY]

of course it can be fatal, the injectors are at 100%

they cannot physically pump in any more fuel

if you hit max inj duty of 100% at 5000rpm and the engine continues to use more air, it will lean out, which places the engine at risk

no engine or tune should max injectors

if you blip 100% at 6980RPM for a slit second its probably ok

but if you hit 100% much earlier and the engine is more on load progressively, its a timebomb

only hitting 100% at redline for a few seconds. its running rich so leaning it out abit, the cycle duty should go down.

[89CAL]

ahh yeahh.... sorry ive stuffed up there lol...

What you were saying is 100% inj duty on stock turbo will run rich because the tune would not require that much fuel

Yeah silly me thought the car was hitting 100% duty and still wanting more, but 100% would be lots of fuel with stock turbo

Sorry bout that I wasnt thinking

ZXY: Your tuner will sort it out, as long as you know what you want out of the tune he will sort it out for you

[JonnoHR31]

of course it can be fatal, the injectors are at 100%

they cannot physically pump in any more fuel

if you hit max inj duty of 100% at 5000rpm and the engine continues to use more air, it will lean out, which places the engine at risk

ONLY if the figures in the map are the correct amounts required for a desirable air fuel ratio. if its running at 10:1 at 100% its not leaning out is it?

entirely agree it can be dangerous, but in this case i highly doubt it really needs anymore fuel

[ZXY]

my tuner fixed the rich fuel mixture. But he had to use the hand controller as the powerfc firmware on my ecu was too new for him. He has to update his firmware to tune it. But still better afr now and injectors are around 85% at full throttle

[89CAL]

feel alot nicer to drive?

[ZXY]

feel alot nicer to drive?

yea feels nicer to drive and its only on 10psi but making good power. Less black soot on my boot as noticed. will go back for a retune when he sorts out his firmware as he only did the tune via controller.