HELP!!!

[wayneluton]

please help me, i have a 2000 saxo vtr, it is juddery on idle, my exhaust sounds rough but wen was moted they said it was fine, and is drinking loads of fuel, any ideas what problems could be.

[Sinque]

Clean the Idle control valve

[wayneluton]

Clean the Idle control valve

can having a k and n airfilter and fuel filter make the car run like crap..

[Technics_1210]

Could be a dodgy lambda sensor if it's using lots of fuel

[wayneluton]

any ideas on the exhaust, it sound really rough has done for a while, but when i had it moted he said it was fine, do you rekon it could be baffles in backbox

[jones91]

Does your car still drive ok or does it affect the performance at all?

[wayneluton]

it drives fine, i dont feel like its lost any performance

[Sinque]

Is it an open or enclosed filter?

[wayneluton]

what do you mean open or enclosed

[Prickle]

For example (any google pic i could find lols)


Open

http://www.v-tuning.com/images/corsa-b-c20xe.jpg

enclosed

http://farm5.static.flickr.com/4068/4439941979_e2936f595f_o.jpg

[wayneluton]

its open

[Sinque]

Start off by enclosing it. Mine ran like crap as soon as the engine warmed up due to heat soak. Put the old box back on and get a k&n filter to put inside unless the cone is behind the passengers headlight as its cold air there. I got one off amazon.com for about 18quid delivered from the u s of a. Cheap as chips compared to near 50quid from uk websites.

Follow this guide aswell, just take it all off rather than just spraying it into the gap: http://www.saxperience.com/forum/showthread.php?t=174710

[wayneluton]

thanks for the help, will give all this ago, any ideas on the exhaust.

[Sinque]

Is it standard or a cheap stainless big bore? Can pick up full systems cheap on here or eBay. I got a full magnex exhaust system for 70quid

[wayneluton]

its a standard one

[Sinque]

Might just be the open filter that is making it sound loud, see how it goes when it's enclosed.

As always do a service on it. Change oil, engine flush it at the same time, oil filter, fuel filter, spark plugs, run a fuel cleaner through it also. Radiator flush and fresh coolant. Should increase fuel efficiency.