Jimmie1.4RT
27-09-2006, 22:56
First off! Please don't think I'm a newbie coming for help then going to bugger off! Am actually a full member (I know Northy is working on it :) with aload more posts)!
My phase 1 1.4RT is running a 1.8 Laguna TB and on 93k miles.
I've had idle problems for a while, the first case was solved with a new idle control valve (ICV), (that came with my 1.8 Laguna throttle body), so it used to idle low anyway.
A fortnight ago, idle became a little more erratic (very low, 5-600rpm and then feeling shuggish and 'hunting'?? (jerking about like I was jabbing the throttle).
So got hold of another ICV from a 1.4 and fitted it to the 1.8 throttle body. Not much different, it still idles at 600rpm....
The other problem is possibly a misfire? I seem to get this 'hunting'(?) and a lag when accelerating, sometimes it won't accelerate above 2.5 rpm at all. Seems more apparent when the engine isn't up to temp'. Sometimes, when I hold the throttle open by the cable, revs drop and raise all on their own. :shock:
Think I've got a couple of problems?
- Bad idle, could it be the lamda sensor?
- Misfire? NKG plugs are no more than 12 months old. Do distribuator caps need replacing? No obvious signs of damage to the leads. I've got a spare coil pack - worth changing trying that?
Any suggestions much appreciated, as my engines running like a bag of rubbish. :cry:
My phase 1 1.4RT is running a 1.8 Laguna TB and on 93k miles.
I've had idle problems for a while, the first case was solved with a new idle control valve (ICV), (that came with my 1.8 Laguna throttle body), so it used to idle low anyway.
A fortnight ago, idle became a little more erratic (very low, 5-600rpm and then feeling shuggish and 'hunting'?? (jerking about like I was jabbing the throttle).
So got hold of another ICV from a 1.4 and fitted it to the 1.8 throttle body. Not much different, it still idles at 600rpm....
The other problem is possibly a misfire? I seem to get this 'hunting'(?) and a lag when accelerating, sometimes it won't accelerate above 2.5 rpm at all. Seems more apparent when the engine isn't up to temp'. Sometimes, when I hold the throttle open by the cable, revs drop and raise all on their own. :shock:
Think I've got a couple of problems?
- Bad idle, could it be the lamda sensor?
- Misfire? NKG plugs are no more than 12 months old. Do distribuator caps need replacing? No obvious signs of damage to the leads. I've got a spare coil pack - worth changing trying that?
Any suggestions much appreciated, as my engines running like a bag of rubbish. :cry: