Engine knocking on petrol

HARSHNEGI97

MEMBER
2007 SUZUKI ZEN
1.0L
3 CYL
MANUAL
40,000 MILES

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!

Tuesday, February 19th, 2019 AT 7:54 PM

1 Reply

JACOBANDNICKOLAS

MECHANIC
109,724 POSTS

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