ok my ninetyone NA is constantly droping rpm: it has a little bit of trouble starting and when i idol it is at one thousand rpm and then drops almost to the point of dying and then goes back to one thousand: and it repeats and repeats this only when im idoling: any help will be appreciated!!! thanks >>>>>my keyboard is messed up so i cant type numbers>>>>> lol

 

oh ya
and btw i recently changed the fuel filter air filter spark plugs and fuel injector cleaner to attempt to solve this problam but nothing has worked any ideas????

 

check for vacuum leaks

 

i did that and i cant find any leaks>>> any others?

 

I don't know... Have you recently checked your timing?

It sounds kind of like a vac. leak though...

 

ill go check the vacume hoses again just to be sure brb

 

sorry if this is late...check the BAC valve.

 

mine does this as well, and on my golf. i was told it was the oxygen sensor but i dont think thats the case. its normally the air/fuel mixture, mine has only 107k miles on it but it was running really rich, i just tore the motor apart tonight tho so when its back together im guna figure it out.

 

check ur tps, had the same problem