Car Wont Rev Past 5k Rpm....

[R34~neo6~turbo]

hi again guys,

yea last time i posted the problem on my r34 gtt that was boost cutting in 5k rpm.. now its cutting of 4.5k rpm and not reving past 5k rpm.. its like rev limited to that point.... any of you guys experienced anything like this before? need some assistance please. im starting to worry that its not my coils and plugs anymore...

anyone located in sydney?? st. george area

[blind_elk]

Have you checked the ignition timing? (I'm suspecting a slightly loose CAS.)

[Tomei_33]

Happened to me when my AFM was stuffed.. took it out and re-soldered it and it works fine.. Could be coilpacks too..

[R34~neo6~turbo]

i hanvnt checked..... but a mate thinks its rev limited... is there such..

how do i check the ignition timing or the AFM?/coilpack if there stuffed up.. how much did it cost u guys

[blind_elk]

They are usually rev-limited to about 7500. Crook AFMs usually limit to around 2500.

There should be a tutorial on how to check base ignition timing.

[Munkyb0y]

it wont be coil packs. you will feel them break down and you'll lose at least one cylinder. it wont limit revs as such, but will struggle to climb.

AFM could definately cause this. but then you would usually see some issue at idle, and cruising off boost too. although AFM symptoms can be pretty random.

Could be CAS. ie timing issues.

edit: Send me a PM if you want. I'm near Hurstville. If nothing else, I can spot if its a coil pack issue.

Edited October 20, 2008 by Munkyb0y

[R34~neo6~turbo]

its frustrating i just got the car for almost 3 weeks now and its having problems already LOL!! xD. anywaiz there no idle issue and when im cruising on low boost its going fine it only happens when i hit 5k RPM on any gear

PM sent Tony. cheers

Edited October 20, 2008 by R34~neo6~turbo

[Munkyb0y]

problem solved.

it was a missfire. the problem was old plugs that were gapped to 1.1

we put new plugs in, gapped to 0.8. now its smooth all the way to redline. smiles all round