Newbie with questions!

[zshadow]

Hi, I'm fairly new to posting, have searched the forums for answers but get nothing specific so sorry if you have heard it all before:-

Got a stock R33 (Auto) Series1, have a 3" Exhaust from cat back, blow off valve and air pod. When I am at low revs around the street I accelerate, then let my foot off.....it then drops revs to about 500 and almost stalls, or it has even stalled once or twice which is not good. Any ideas? I tried putting a stronger earth for the fuel pump but no change.

Also driving at about 60km, the car sort or drops down then picks up then drops down, kinda like changing gears, but my foot isn't on the accelerator very much.

Hmmmm............

[Topaz]

sounds like you might have a head gasket or dropped cylinder problem....get it pressure tested at a mechanics (in your capital city) and see what they say

another thing it could be is the air/fuel mix. If the Air Control Filter (which is electronically controlled) is acting up and not closing properly you will be getting air intake when your not supposed to and causing a drop in revs.....

also check the Oxygen sensor

[Phantom32]

check the tightness of the BOV....could have something to do with revs dropping after acceleration.

[zshadow]

Thanks for that, will give it all a shot!

[Wink]

Got a stock R33 (Auto) Series1, have a 3" Exhaust from cat back, blow off valve and air pod. When I am at low revs around the street I accelerate, then let my foot off.....it then drops revs to about 500 and almost stalls, or it has even stalled once or twice which is not good.  Any ideas? I tried putting a stronger earth for the fuel pump but no change.

I have this problem too.

You have to do 2 things to reduce the effects of this problem.

1) Clean the throttle body

2) Raise the idle RPM

Note that it doesn't get rid of it entirely. However the car becomes very much less prone for a stall after acceleration.

I have also heard replacing the AFM will also help.

[97Sky]

Money is on the BOV take it off and see if it still does it. If it doesnt do anymore there is your problem.

[zshadow]

Going outside to try the BOV now.....will see what happens and post back.