Engine knocking on petrol

2007 SUZUKI ZEN
40,000 MILES • 1.0L • 3 CYL • MANUAL
Avatar
HARSHNEGI97
  • MEMBER
  • 1 POST
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
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.