Engine knocking on petrol

2007 SUZUKI ZEN
40,000 MILES • 1.0L • 3 CYL • MANUAL
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HARSHNEGI97
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i have zen estilo (2007) done 62000. i have cng fitted from outside. the car works fine on cng but give jerks on petrol. local mechanic says it is a problem with advancer. Another one says it is a problem with throttle body and injectors.Help!
Feb 19, 2019 at 7:54 PM
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JACOBANDNICKOLAS
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Hi and thanks for using 2CarPros.

First, this vehicle isn't available in the US, so my technical information is very limited. However, when you get valve noise or poor performance, often times it is related to either the fuel octane is too low or the engine knock sensor is bad. The knock sensor is responsible for adjusting engine timing to maintain the best performance. If it fails, timing may be compromised.


Take a look through this link and see if it helps.

https://www.2carpros.com/articles/how-a-knock-sensor-works

Take care,
Joe
Feb 19, 2019 at 8:10 PM