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no power past 5 grand???

Mr GTS4

By Mr GTS4,
in Engines & Forced Induction

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Mr GTS4 Mentor

Mr GTS4

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ok... problem fixed after months of wondering what the hell it was. my mate works at nissan in ipswich and we hooked up the consult machine thing to it. and it came up saying the KNOCK SENSOR wasn't thereor something like that. well i searched on the site for knock sensors and lots and lots of people have had the same problem with the knock sensor. i just wasn't looking for the right thing. i looked at it them this morning and one of the plugs were disconnected. how the hell does that happen, and the guy thathad the car before me had it serviced in brisbane at a nissan place and they never picked up on it.... WHAT THE. alll those months of no power. i'm going to mt glorious tomorrow with my girl... time to test it out!!! :headspin: :) :headspin:

  • 2 weeks later...
williamc Collaborator

williamc

Posted
Posted

So, howd it go?

I just got my car back from getting it tuned on the dyno, and it was having exact same problem. Hitting 4500 the power would follow the curve hitting bout 230rwhp on the first run, but on the second run would break down and lose power to about 175rwhp. If they turned the car off, and then back on again, same thing on first run, then crap from then on. After hours of checking they finally found the knock sensor loose and dirty. It seems to have fixed the problem...phew!!

Did u replace your knock sensor??

Will

Mr GTS4 Mentor

Mr GTS4

Posted
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hell yeah.. before it just died at 5 grand and now it pulls to 7 grand all day every day. raced my friend with a mazda 626 turbo and it beat me before i fixed it and now a beat it by about a car length over about a 1/4 mile.

williamc Collaborator

williamc

Posted
Posted

Really?? 230rwhp, I was hoping for more. Ive done, exhaust, filter, boost, fuel pump, fuel computer, front mount intercooler. Although it was at 0.8bar, as it was being dynoed for tuning the fuel computer. I spose if I was to go for a power run at 1bar (still got standard turbo) then it would be a bit more attractive...

williamc Collaborator

williamc

Posted
Posted

Ive got the HKS Super AFR. The apexi seem to be most popular, but Ive got everything HKS so i wanted it to match. It also has a few more rev points that can be tuned I think, built in processor ( fuzzi logic?? Im not sure the advantage) and also built in EIDS, which is an idle stabiliser to help stop that stalling problem some people get with aftermarket blow offs vented to atmosphere when drop off accelerator quickly.

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