can anone help lol

[johnster]

my a4 was suffering from rough idleing last week wasnt to bad went to star it yesterday morning like every morning a bit rough but it normaly sorted its self out after a few mins now it just totaly cuts out the revs drop to about 400/500 and stalls starts back up fine but when i come to junctions it stalls and i have to start the engine agen

i have took off the pipe to the throttlebody and sprayed it with wd40 engine running a lot smoother but it still sems to cut out how much is recomended to spray in im clueless and also how long does it take for it to take effect


thanks in advance

john

[sbt]

hi mate what engine is it petrol or diesel . i had this same problem on a 1.8 a4 and it was the maf sensor try unplugging it and take it on a short test drive . if you are not aware where it is its in the thick black rubber pipe that comes from the air box

[johnster]

petrol mate the wire on top of the air filter box?

[sbt]

a bit more info would be helpful what size engine and what year car

[johnster]

1997 b5 1.8 non turbo sorry about that just started stalling when i take foot of the accelerator

[sbt]

ok mate that engine if i am not mistaken as the maf/airflow sensor bolted directly onto the air box try removing the plug from the sensor and take it for a short test drive if the symptoms have gone then your problem is a faulty maf/airflow sensor

[kenney]

Ckeck for unmetered air the breather hose to the rear of the engine would be the first port of call

[johnster]

aint the airflow just tested it i since sprayed a bit more wd in the tb and it ticks over still very low revs doesnt cut out like before but does eventualy die still low revs tho aboutt 400/500

[sbt]

hi mate i dont know why you are spraying wd 40 in the throttle body its a lubricant and a very inflamable one at that i would be very carefull . what you need is carb cleaner

[burkey1]

hi mate i dont know why you are spraying wd 40 in the throttle body its a lubricant and a very inflamable one at that i would be very carefull . what you need is carb cleaner

Ya totally agree here. If anything WD40 will make the problem worse...
You need to get it cleaned, not lubricated..

[johnster]

yeah used carb cleaner and used wd on the throtttle cable cos it was stickin working fine now had it not benn for a mate id of been screwed



thanks alot lads problem now sorted