Rough idle
#1
Scooby Regular
Thread Starter
Join Date: Apr 2012
Location: Blaydon
Posts: 301
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
Ok, iv had problems with my scoob from day 1 but put them all right apart from 1, which nobody can figure out.
My cars a 2003 wrx ppp, its got a k&n on nd thats about it.
What the problem is, when i plug my maf sensor conector in, the car runs like a dog, splutters, jerky etc, trys to cut out and sometimes in limp mode.
When i unplug the maf conector it runs 100 times better but obv throws alot of codes up. But it sumtimes boosts to about 20psi, which i asume isnt right.
Iv replaced the maf sensor, and the conector, and its the same. Checked for leaks, cant find any!
I got the car on the diagnostics at my local garage, they told me my 2nd lambda sensor was dead, so iv replaced that also, but still the problem!
Really gettin on my nerves, as the cars waiting to be tuned and i cant do anything til its 100%
PLEASE, SOMEBODY HELP ME
My cars a 2003 wrx ppp, its got a k&n on nd thats about it.
What the problem is, when i plug my maf sensor conector in, the car runs like a dog, splutters, jerky etc, trys to cut out and sometimes in limp mode.
When i unplug the maf conector it runs 100 times better but obv throws alot of codes up. But it sumtimes boosts to about 20psi, which i asume isnt right.
Iv replaced the maf sensor, and the conector, and its the same. Checked for leaks, cant find any!
I got the car on the diagnostics at my local garage, they told me my 2nd lambda sensor was dead, so iv replaced that also, but still the problem!
Really gettin on my nerves, as the cars waiting to be tuned and i cant do anything til its 100%
PLEASE, SOMEBODY HELP ME
#3
Scooby Regular
Join Date: Apr 2012
Location: Newcastle
Posts: 725
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
u have had some bother with that car mate. try drew or alyn both on tts or join nesf lad called finn on there loads lads seem to use try one of them to look at it if u already havent
#5
Scooby Regular
Thread Starter
Join Date: Apr 2012
Location: Blaydon
Posts: 301
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
A know marshall, its been problem after problem, but i love the car so im not gonna let it defeat me haha
Just wish i cud figure out what wrong with it, cos im running it without the maf conected most of the time and its costing a fortune haha
Just wish i cud figure out what wrong with it, cos im running it without the maf conected most of the time and its costing a fortune haha
#6
Scooby Regular
Thread Starter
Join Date: Apr 2012
Location: Blaydon
Posts: 301
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
Just been reading up on this, and a few people say that induction kits can mess up the maf sensor causing the car to run lean, iv bought a standard airbox and cosworth pannel filter so im goin to have a go at fitting that tonight.
If any1 in the area fancys givin me a hand wud be helpful haha
If any1 in the area fancys givin me a hand wud be helpful haha
Trending Topics
#9
Scooby Regular
iTrader: (6)
Join Date: Feb 2010
Location: north of the south border
Posts: 4,510
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
Take off the indution kit and replace it with a standard air box and high flow filter, the problem with the induction kit is it changes the way the air flows past the maf so it throws the scalings out hence rough idle and running issues as it does not meter the air correctly.
#12
Scooby Regular
Thread Starter
Join Date: Apr 2012
Location: Blaydon
Posts: 301
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
The maf i put on was a brand new denso!!
The car judders under boost wen the maf is conected, but throws no codes!
Wen i unplug it, it throws heat sensor codes and airflow
The car judders under boost wen the maf is conected, but throws no codes!
Wen i unplug it, it throws heat sensor codes and airflow
#13
#21
Scooby Regular
Join Date: Apr 2012
Location: Newcastle
Posts: 725
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
U have to have it mapped when u put the 3 port on or u may have more to worry about than a rough idle. Phone drew he might still have some 3 ports left. There not Perrin but there half the price.
#22
Scooby Regular
Thread Starter
Join Date: Apr 2012
Location: Blaydon
Posts: 301
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
Are the perrin ones not the best tho? Its gettin mapped in october wen i put my turbo + inhectors on.
Iv got a full 3" decat system there aswell do i need to map that as soon as i put it on?
Iv got a full 3" decat system there aswell do i need to map that as soon as i put it on?
#23
Scooby Regular
Join Date: Apr 2012
Location: Newcastle
Posts: 725
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://www.scoobynet.com/images/icons/icon1.gif)
Don't c how they can be the best mate. Unless someone has tested them. Al check the make av got. Sure it the ones pro drive use. Ehm think exhaust might be ok but as a precaution ad wait and get it all done at the same time.
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM
supshon
General Technical
2
03 October 2015 08:06 PM