Engine Light

[lineskee 33]

Hi all. Currently im saving my dollars to get my new turbo installed on my car, the issue im having is im using a power fc on a base tune just so i can get around before it gets the proper tune when my turbo goes in. The issue im having is i get the engine light to come on when i give the throttle some love. I do know it is overly knocking when it happens and i do manage to drive the car really carefully to keep the knock under 20 or so. (it only really knocks when going up a hill or something like that, its not constant.)

My first question is, would a stock ecu show the engine light in the same manner as the power fc if it produces too much knock?

Secondly, how would I go by reducing the knock if i were to keep the PFC in my car?

I have a basic understanding that you have to increase fuel and udjust timing, but where do you do it and by how much do you adjust it at a time?

thanks. david

[lineskee 33]

Ok i managed to reduce the knock quite a lot just by making minor adjustments to my PFC. I put the IGN/IJN values to +1 and 1.136 which were originally 0 and 1.000. does anyone have any feedback to wether this could be more dangerous at all or cause any issues? the knock readings dramatically reduced and i didnt really get any knock over 20 for this which im fairly happy with.

Oh and thanks to Paulr33 who wrote up the guide on the power fc, its very helpul.

[cheez]

do the best thing you can, get teh pfc tuned now, and then get it tuned again once you do the turbo. for the $300 odd that it will cost you for the second tune it may stop you blowing the motor or doing some serious damage.

[paulr33]

the faq will give you all the info you need to fix it properly

if you feel you are up for the task. it will just bee some ign timing cells too advanced in the high load area

learn how to use map tracer and watch for the check light and then thats where to back out ign timing

or if its easier note down what conditions you see the light come on

rpm, load, speed, gear etc and give this info to your tuner, they can then sort it out

[lineskee 33]

the faq will give you all the info you need to fix it properly

if you feel you are up for the task. it will just bee some ign timing cells too advanced in the high load area

learn how to use map tracer and watch for the check light and then thats where to back out ign timing

or if its easier note down what conditions you see the light come on

rpm, load, speed, gear etc and give this info to your tuner, they can then sort it out

Yea its definantly coming on under heavy load. I have only seen the engine light come on twice or so, and im constantly looking at the amount of knock coming out and i rarely get it to or over 30. I just wanted to lower that even more to a much safer value. Im fairly happy with the settings i have so far, I just wanted to reduce the knock a little more in the heavy load part of the map. ill take another look at the map tracer and go from there i guess. Thanks again Paulr33.

I would really like to get a tune asap for the car but its a bit pointless because im getting the turbo put in most likely next month because i have everything to go in already. besides if i didnt have a go myself, i would have never known what to do or how to reduce knock.