car seems a little flat

[aston]

My Primera seems a bit flat (Possibly I am expecting more) What should I check? (I have changed the Air filter so far), Over the weekend I'll check out the plugs.

 

[Prince]

Check for air leaks (i.e. any split hoses). I'd also get a diagnostics done as it may be something small like a sensor.

 

[turbonutter69]

Try some carb and choke cleaner in the throttle body?

 

[Jakeymd]

Try root booster. It'll give you a healthy looking lift

 

[dagger]

Try some carb and choke cleaner in the throttle body?

Defo do the above, i clean mine once a month

Also, change the fuel filter (easy to do), plugs (for the correct kind - NGK)
Check the timing is spot on as well.

I've just ran a cold air feed into my OEM airbox, and boy can you tell the difference, no more flat spots, and deffo accelerates quicker

 

[aston]

Defo do the above, i clean mine once a month

Also, change the fuel filter (easy to do), plugs (for the correct kind - NGK)
Check the timing is spot on as well.

I've just ran a cold air feed into my OEM airbox, and boy can you tell the difference, no more flat spots, and deffo accelerates quicker

How did you do the cold air feed?

 

[dagger]

Your engine is a 2lt, which is different to mine - I only have a 1.6, so mine was easy to install, to make yours better, I would advise replacing the airbox with a cone filter, and run a short cold air feed into the passenger side wheel area, then if you can, make a heatshield for it, so it doesn't get heatsoak



Hope that helps

 

[HDi fun]

There is already a cold intake mounted in the passenger side front wing

 

[dagger]

there is, but it can be made bigger / better

 

[turbonutter69]

Yes there is but it attaches to another box inside the wing that restricts and slows down airflow.
I removed the box and replaced with some pipe for a direct cold air feed and it was a noticeable difference in throttle response.

There is already a cold intake mounted in the passenger side front wing