VY commodore running ruff on idle

[Watt]

Hey Guys,

i have a VY 2003 Commodore standard motor and running gear, it is running really ruff on an idel , when sitting on an idle for a while the check engine sign comes on.... i have done leads and plugs , cleaned the throttie body , air filter replaced and air flow meter pick up cleaned,have run injecter cleaner,

the only other things i have not done yet is the o2 sensor / temp sensor / air meter

any ideas ? should i replace these 3 things ..... i have not reset the computer should i do this? / and how do i do this ?


thanks
wato

[hN!]

You could try changing o2 sensor's but if they were that bad you would have noticed bad fuel economy before check engine light You could try another IAC motor

[jdcasagrande]

my vy s pac was running extremely rough on a cold start up, and when waiting at traffic lights, i replaced all the things you mentioned, and when i took it too the mechanic he found a vacuum plug which covers a little metal hose that protrudes out of the engine was missing, and once he put a new plug on that, the idle went back to normal. The plug was pritty much on the front of the engine as you open the bonnet, not sure if this helps.

Also you can try resetting your ECU, i think you take the negative off the battery and turn your headlights on full, leave it for a minute or so then reconnect your negative to your battery.

[SavVYute]

Hey Guys,

i have a VY 2003 Commodore standard motor and running gear, it is running really ruff on an idel , when sitting on an idle for a while the check engine sign comes on.... i have done leads and plugs , cleaned the throttie body , air filter replaced and air flow meter pick up cleaned,have run injecter cleaner,

the only other things i have not done yet is the o2 sensor / temp sensor / air meter

any ideas ? should i replace these 3 things ..... i have not reset the computer should i do this? / and how do i do this ?


thanks
wato

If your check engine lights come on it will have thrown a diagnostic code.
Bite the bullet and get it checked by a mechanic with a techII. They'll fix it in a flash.
It really is a waste of coin just replacing sensors and hoping...