Whats About To Go?

[RedLineFeva]

I am having a problem with my car can anyone help??

I have an R33 with a neo rb25 in it, when i open it right up on low boost, 0.5bar, it is fine but when i turn it up to 0.9 the engine light comes on at about 5k rpm.

any help would be good.

[PM-R33]

Means the engine is knocking, stop doing it.

Is the car running some sort of engine management?

[RedLineFeva]

i have a Power FC, does knocking mean the piston is hiting the head???

[Adriano]

No, it means it is detonating, and you need a tune or a touch up. Tell the tuner where the light comes on.

[RedLineFeva]

what do you mean detonating??

i'll call my tuner tomorrow.

thanks for the help too guys

[PM-R33]

Means the air/fuel mixture inside the cylinder is exploding under its own free will from compression instead of burning when the engine ignites a spark from the spark plug.

Ie. your engine will eventually die if it continues like this.

Edited December 15, 2008 by PM-R33

[RedLineFeva]

thanks mate, so the fix is a tune. could it be because it was not tuned properly when i put in the Power FC a couple of months ago.

is the problem only happening when the light comes on during high boost or all the time?

[PM-R33]

Yep a tune will fix it. Did it get tuned when you installed it? Or are you just running it on the base map?

The light also flashes if the injectors are maxing out, or if the airflow metre is maxing out. So it could also be that.

Check your hand controller's max knock count, max airflow voltage and max injector duty cycle to see what one it is. But most likely it is knock.

[RedLineFeva]

got it tuned when it was put in, not sure what map they have used, ment to be a safe tune snd not lean at all.

i don't even know what the figures should be on the controller

[PM-R33]

Best bet just take it back to your tuner and get him to check it out. When you take it there, get the car's engine light to come on along the way but don't turn the car off when you get to him. That way he can have a look at all the max values on the hand controller and tell you straight away what's causing it. Whether its knock, the afm or injectors.

Good luck.

Edited December 16, 2008 by PM-R33

[RedLineFeva]

spoke to him today, he thinks it is because i only ran 95 premium because 98 ultimate had run out at the servo, i needed fuel asap because a cruise was about to start.

i'm lucky i didn't gosh darn the whole engine.

[skylinekid]

i started reading and when u didnt know wat knock was straight away i suspected u wouldnt have the correct fuel in it... i see it alot.... kinda makes me angry sumtimes lol..... if it was tuned on 98 and ur gonna go flog it sumwhere make sure it has that octane fuel in it. minimum u can run lower octane fuel if ur just lightly cruising but it still not recommended. my 2cents

[RedLineFeva]

yeh i no it was tuned on 98 and i'm ment to run 98, but the servo had run out. they only had 95 and i had 10 mintues to get to the crusie. what i didn't realise is the damage that could of been done while i was out with 300 other cars letting her have it for 4 hours.

[skylinekid]

well shouldnt it have clicked wen for sum reason sumthing different is happening now that ur not running the same petty(generally flashing lights mean get off the go peddle).... like seriously now. thats like puttin canola oil in ur sump and saying oh she'll love it..... sorry to rant on but sum ppl are just so ignorent.

[Tezzah]

Well you've learnt a valueable lesson. Let the bloke move on

[skylinekid]

hey i got no problem i just see it all to often is all....