my 2.0 inspira angine looks like got some problem any idea what's wrong?

- rpm when idling goes down to 600-700
- fuel consumption this and last refuel lasted 300kms only? Full tank i pump RM95. Used to last 430kms on RM95
- engine not smooth as before
- just tuned it to higher when 10k km service last weekend.
- Shell Fully synthetic proton service center used.

Suspect problem
- One Cylinder not working?

Any other idea what's wrong?

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Added on October 23, 2012, 10:14 amwondering why check engine light not showing if one cylinder not working?

This post has been edited by kamikazecommando: Oct 23 2012, 10:14 AM

idling what kind of rpm are you experiencing?

600-700 is too low?
my driving pattern not changed.
engine lubricant up to F level when stationary

at the dot indicating it's Full.

stress la. engine not that smooth especially when idling, will ask proton service center to check it out tomorrow.

[quote=jnick,Oct 23 2012, 10:51 AM]
Before u stress out, mind to check ur air filter?
Have a look see whether install properly after service.

Secondly, u mention tuned, what tune u did

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Added on October 23, 2012, 10:53 am


Tuned as in Proton Service center did cucuk computer.