Really rough idle on EJ20T
GTMac - May 5th, 2006 at 08:52 AM
Guys any ideas, this is driving me crazy.
I have no fault code readings whatsoever. I have checked plugs and I have very rough idle, no power and back firing when I try to drive.
Checked as many hoses as I can see like a vacumm leak and cant see anything.
It was running beautifully and then I did a gearbox change and swapped over a broken BOV and now its running rough. Charcoal cannister also hooked up
but dont assume that would effect anything?
My best way to describe it is that it fels and sounds like its running on 3 cylinders.
JVLR - May 5th, 2006 at 10:15 AM
GT,Sounds like air pocket around your leads.Make sure all leads are pushed on your coil packs.If one feels like its not pushing on and then pushes
back thats you prob. you have a air pocket! Just prick a hole at the end of lead to coil.This realest the air from the connection.JVL
boof2332 - May 7th, 2006 at 12:29 AM
When it all went wrong in the beginning..and I mean everything that could of gone wrong did, you become pretty good a diagnostics..... Clean your
plugs, they are wet. Too much starting on cold start(really rich) and not running car for any length of time...they foul and when not firing properly
just soak.
On these engines always test cylinder activity by removing injector plug, not coil plug, as it too will cause grief.
Matt
boof2332 - May 7th, 2006 at 12:35 AM
JVL,
I'm sure he runs on plug coils..there are no leads!
I'm also not going to ask again nicely..WHERE THE HELL IS YOUR CAR???
Has you wife sold it on you...?
Matt:thumb:jesus:thumb bechewychewycharmp
Craig Torrens - May 7th, 2006 at 10:05 AM
| Quote: |
Originally
posted by boof2332
JVL,
I'm sure he runs on plug coils..there are no leads!
I'm also not going to ask again nicely..WHERE THE HELL IS YOUR CAR???
Has you wife sold it on you...?
Matt:thumb:jesus:thumb bechewychewycharmp
|
Or maybe the car has been turned into a LAWN MOWER :jesus
GTMac - May 7th, 2006 at 04:29 PM
Turned out to be very wet and fouled plugs, thanks Matt. Yeah has only been idling in garage for last few months and thus plugs looked horrific, well
one did and I suppose thats all you need. Yes still running coil packs.
JVLR - May 7th, 2006 at 06:33 PM
| Quote: |
Originally
posted by boof2332
JVL,
I'm sure he runs on plug coils..there are no leads!
I'm also not going to ask again nicely..WHERE THE HELL IS YOUR CAR???
Has you wife sold it on you...?
Matt:thumb:jesus:thumb bechewychewycharmp
|
Well mister Matt,I run leads:thumb...and air pockets cause these probs:o...Do you nagg your wife the same way?:P
[ Edited on 7-5-2006 by JVLR ]
JVLR - May 7th, 2006 at 06:34 PM
| Quote: |
Originally
posted by Craig Torrens
| Quote: | Originally
posted by boof2332
JVL,
I'm sure he runs on plug coils..there are no leads!
I'm also not going to ask again nicely..WHERE THE HELL IS YOUR CAR???
Has you wife sold it on you...?
Matt:thumb:jesus:thumb bechewychewycharmp
|
Or maybe the car has been turned into a LAWN MOWER :jesus
|
:PThanks Craig
JVLR - May 7th, 2006 at 07:15 PM
| Quote: |
Originally
posted by GTMac
Turned out to be very wet and fouled plugs, thanks Matt. Yeah has only been idling in garage for last few months and thus plugs looked horrific, well
one did and I suppose thats all you need. Yes still running coil packs.
|
GT,didnt you say you checked the plugs first post!:o
boof2332 - May 11th, 2006 at 08:07 AM
I have the same coils and leads as you john, mine have never done this...maybe your leads are loose at the contact point.
Matt
JVLR - May 11th, 2006 at 11:42 AM
| Quote: |
Originally
posted by boof2332
I have the same coils and leads as you john, mine have never done this...maybe your leads are loose at the contact point.
Matt
|
Nope...Matt the leads were tight,this sought of probs do happen and can be mistaken for a bad plug...........:o
boof2332 - May 11th, 2006 at 09:49 PM
When I put the 98 manifold and fuel rails etc on my engine, it took a while to get it running well, then all of a sudden goes ballistic for 3 weeks,
then droped off a bit, then blew box. Today as I was always suspicious of this problem, I changed the pressure regulator. The beast is back...possible
a bit more responsive than before. Thats probably why the manifold was so cheap on ebay to start with...it was running real lean and melted.
matt
GTMac - May 12th, 2006 at 11:05 PM
| Quote: |
GT,didnt you say you
checked the plugs first post!:o
|
Yeah I did :o looked OK, bit black but seen worse. Cleaned them anyway and still no good as it really fueled up on the front passenger side. Cleaned
again and idled up nicely this time but still missing at higher rpm. Hope plugs are not stuffed completely, over $100 and 2k km old.
boof2332 - May 14th, 2006 at 08:23 AM
What kind of miss....intermittent? Lots of causes...a few things first..
Have you used the head cleaning foam from subaru to get rid of all the carbon etc in the intake? have you used the nulon lifter additive? Now it runs
o.k. try and come out and see me at the shop, or I will pop by and have a look later next week.
Matt
GTMac - May 15th, 2006 at 10:04 PM
| Quote: |
Originally
posted by boof2332
What kind of miss....intermittent? Lots of causes...a few things first..
Have you used the head cleaning foam from subaru to get rid of all the carbon etc in the intake? have you used the nulon lifter additive? Now it runs
o.k. try and come out and see me at the shop, or I will pop by and have a look later next week.
Matt
|
Thanks, Matt. Might try and pop out to workshop or if you have time that would be great as shouldnt really be driving a non engineered car yet!!!! Im
actually moving house and car is now at Fairfield, 400m up from where Nationals were. Let me know.
Andrew