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100% injector duty + 204 knock

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Old 04-25-02, 01:47 AM
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100% injector duty + 204 knock

On the way home tonight, I ran into a mustang cobra at a red light... so anyways, after I sent him home crying (actually, it was pretty much even) I looked at the peak holds on my PFC and it read 100% injector duty and 204 knock . What should I do to check if any damage was done (other than a compression test)? and what should I do to prevent this in the future? bigger injectors? bigger fuel pump?? ecu tuning?

My mods are as follows:

hot-air intake
stock twins
efini y-pipe
greddy SMIC
downpipe
stock cat
trust exhaust
apex'i power FC (factory settings)
Old 04-25-02, 02:57 AM
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How much boost were you running? A larger fuel pump and some bigger secondaries would probably be something to consider soon.
Old 04-25-02, 03:09 AM
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If your idle is the same as it was before, your car is fine. Idle gets rough and lumpy, and the vacuum gauge jumps around when you damage a seal. But it sounds like you need some upgrades in the fuel system department to keep it healthy.

-Max
Old 04-25-02, 03:34 AM
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You will definitely need to tune your ECU since you're running factory settings. Also, it would be a good idea to get a rising fuel pressure regulator and a bigger fuel pump.

I've seen a few cars with td-06/25G's and A/R .50 with 60-1 wheels run on stock injectors boosting 1.0 kilos with a rising fuel pressure regulator and a wahlboro fuel pump. No need for injectors until you get a td-07 or a real t-04S.

Also, I highly recommend getting the pfc datalogit equipment. That way, you could see where you were knocking and fix it before it's too late.
Old 04-25-02, 11:17 AM
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thanks for the feedback, im gonna go get a bigger fuel pump and look into one of those datalogits...

the boost reading on my power fc said .89
Old 04-25-02, 11:25 AM
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What do you exactly mean by knocking?




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