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The mkiv Supra Owners Club

Massive knock


Kristian_Wraae

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I had a strange experience yesterday.

 

I have a 2JZ-GTE med an Apexi Power FC standalone and suddenly the check engine light came on. Checking the hand controller I could see that it was warning of massive knock even at idle. The car drove completely normal. I then drove home slowly and after 10 mins or so when I was stopped at a traffic light the knock warning stopped and all was normal.

 

During the knocking the timing was 10 degrees. No other sensors were strange. AFR was 14.7 and EGT around 430 C.

 

When I came home I put it in neutral and reved it a few times to 6000 rpm and there was a little activity from the knock sensors as normal (so I could verify that they were still giving out a signal)

 

What could cause this apart from maybe a failing sensor/wiring?

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Do you think that it will make it knock at idle?

 

 

No, very unlikely, would need to be loaded up. Does the PFC read both stock knock sensors or just one of them? If just one try swapping them over.

 

I would imagine you would hear, and feel in how the engine was running, if you *REALLY* had massive knock.

 

Anyway, without my glasses I initially thought the thread title was massive knockers, so i am bored with it now ;)

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Guest Dexter max

I also had massive knocking sound from2jz-ge engine. Before that i have overhaul my engine head after that i was riding for a test ride, suddenly that sound come from the engine and come back to home. I have checked timing its perfect. can any one help me to fix this. Do i have to do a full overhaul or whats shell i do ???

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I also had massive knocking sound from2jz-ge engine. Before that i have overhaul my engine head after that i was riding for a test ride, suddenly that sound come from the engine and come back to home. I have checked timing its perfect. can any one help me to fix this. Do i have to do a full overhaul or whats shell i do ???

 

My first advice would be start your own thread which will then focus replies to your problem :) and :welcome: to the forum

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And Top Secret is not very useful as a location if you want someone local to you to offer to help.

 

Are you not English? Or are you using one of those devices that thinks it knows what you want to type, and makes you look like English is not your native tongue?

 

Dick licks it.

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