Knocking Higher Then Normal

[Mareko]

Just noticed my locking had more then doubled, it use to be around 40 on WOT but now has gone uptoo 110 ? Any ideas on what could cause this ?

[Ben C34]

Shit fuel.

Popped wastegate line.

Blocked injectors

Bad fuel pump.

You messed with something

Etc

[Ben C34]

100 percent duty! Yeah!

[scotty nm35]

I think we have a winner. lol.

[Dose Pipe Sutututu]

Go on E85, lean outs result in misfires not kapowed motors (well 2 out of 3 instances)

[scotty nm35]

Not with those little injectors.

[zebra]

100 percent duty! Yeah!

Airflow is maxed as well

[XKLABA]

100% duty cycle on injectors is only ever going to end badly

[Mareko]

So I should check or change fuel pump, injectors ?

And What should injduty read

Edited December 19, 2014 by Mareko

[zebra]

turn the boost down for a start

[Mareko]

I will as soon as i get a boost controller ..

[sleptema]

I would go get a proper tune for a start. No tuner in their right mind would/should tune above 90% injector duty. Go larger injectors, get a better fuel pump, go for a z32 or q45 afm, get an EBC and decent tune.

[Mareko]

Thanks for the help ^^ will do that ..

The car was last tuned by erd on the coast at beginning of the year, he's a good tuner by the people I've asked and was running awsome till a month ago ..maybe sum1 played with hand controller ? And when I'm slowing down the car tends to rev by it self ?

[sleptema]

Thanks for the help ^^ will do that ..

The car was last tuned by erd on the coast at beginning of the year, he's a good tuner by the people I've asked and was running awsome till a month ago ..maybe sum1 played with hand controller ? And when I'm slowing down the car tends to rev by it self ?

I have heard of PFC's resetting themselves. So if it has, and is running extra boost (through boost tee or different actuator) it will try compensate and that's where your issues lie. Or yes, someone could have easily messed with the hand controller. Honestly I would be doing this sooner than later. And if you have a daily, I would be driving that. The last thing you want is engine failure or damage due to something so small and relatively cheap to repair.

[Mareko]

Thanks man this is my daily and only car so I'll just baby it around till I take it for a tune ..

[GTSBoy]

If this thing has no boost controller, then you CANNOT turn the boost down even if you fit one. Getting it to a tuner pronto is absolutely the only option.

[sleptema]

If this thing has no boost controller, then you CANNOT turn the boost down even if you fit one. Getting it to a tuner pronto is absolutely the only option.

Overboosting? Wastegate not opening far enough?

[Blackkers]

I will as soon as i get a boost controller ..

Boost controllers only let you turn boost up

[djvoodoo]

How about the simple things like, for example,

The weather. It is summer now. It's humid, hotter and the air is less dense

[Ben C34]

How about the simple things like, for example,

The weather. It is summer now. It's humid, hotter and the air is less dense

So do what? Wait till its cooler?

That would still mean the tune was on an absolute knife edge.