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Soft alarm above 3000rpm

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Old 05-09-2025 | 09:04 PM
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Griff
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Originally Posted by AP700
Test drove her today, reved over 3000, got soft alarm. 1sec on, 3sec off. Above abd under 3000rpm. Didnt stop until I restart the engine. After restart we have no alarm. Scanned for codes pending while driving, she throws knock sensor code.
I heard of knock codes because if engines that just do not knock. I drive on 95 octane fuel.
Your 95 RON is equivalent to 91 octane in the US. You could run 91 ROR which is equivalent to 87 US Octane
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Old 05-09-2025 | 09:12 PM
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Originally Posted by AP700
Test drove her today, reved over 3000, got soft alarm. 1sec on, 3sec off. Above abd under 3000rpm. Didnt stop until I restart the engine. After restart we have no alarm. Scanned for codes pending while driving, she throws knock sensor code.
I heard of knock codes because if engines that just do not knock. I drive on 95 octane fuel.
how noisy is your valve train?loose rocker will trip it,I found out first hand.
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Old 05-10-2025 | 12:56 AM
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Originally Posted by Griff
Your 95 RON is equivalent to 91 octane in the US. You could run 91 ROR which is equivalent to 87 US Octane
Our 95 is the lowest lowane to get ober here.
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Old 05-10-2025 | 12:57 AM
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Originally Posted by sutphen 30
how noisy is your valve train?loose rocker will trip it,I found out first hand.
I think its very low noise. Got crane gold roller rockers on it.
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Old 05-10-2025 | 11:15 AM
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pull some spark plugs and look for detonation.also check for total timing,may be coming in to early.
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