Notices

CEL Light Flashing - Drop in power - 02 WRX

Thread Tools
 
Search this Thread
 
Old 11 April 2012, 08:45 PM
  #1  
ketsbia
Scooby Newbie
Thread Starter
 
ketsbia's Avatar
 
Join Date: Aug 2011
Location: Selby
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Default CEL Light Flashing - Drop in power - 02 WRX

Hi all,

Was just arriving home from work when, as I was coming off the mortorway onto the slip road the CEL light started flashing (after about 20 miles on Mway at cruising speed), as I pulled away to go around r'bout there was a definate loss in power that stayed for the last little bit of journey to the house. Got home and lifted bonnet for a poke around, turbo still seems to be winding up and dump valve sounded ok but tick-over was a bit low and lumpy, sub 1000rpm. Car is 02 Bug Eye WRX as standard except exhaust.
Any ideas??? Petrol light came on at about the same time, worried that I might have pulled some crud into the engine.

Many thanks in advance

Cheers
Old 11 April 2012, 09:49 PM
  #2  
myblackwrx
Scooby Regular
iTrader: (1)
 
myblackwrx's Avatar
 
Join Date: Mar 2006
Location: Dorset
Posts: 8,787
Likes: 0
Received 1 Like on 1 Post
Default

Only way to tell is to get the error code read.

Few topics here

http://www.scoobypedia.co.uk/index.php/Knowledge/ECU
Old 12 April 2012, 07:06 AM
  #3  
petethemeat
Scooby Regular
iTrader: (6)
 
petethemeat's Avatar
 
Join Date: Jun 2008
Location: Lancs
Posts: 922
Likes: 0
Received 0 Likes on 0 Posts
Default

There is a petrol light? I thought I had run my bug pretty low in the past on one or teo occassions and NEVER seen a petrol light ! It must have been low then !

As said above get the error code read
Old 12 April 2012, 07:20 AM
  #4  
Norman Dog
Scooby Regular
iTrader: (1)
 
Norman Dog's Avatar
 
Join Date: Dec 2006
Location: South Shields Tyne & Wear
Posts: 3,036
Received 23 Likes on 16 Posts
Default

Read this thread.

https://www.scoobynet.com/general-te...w-flashes.html
Old 12 April 2012, 09:55 AM
  #5  
ketsbia
Scooby Newbie
Thread Starter
 
ketsbia's Avatar
 
Join Date: Aug 2011
Location: Selby
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks guys. Same issue on way to work this morn; drop in power, feels like your constantly driving 2 gears too high

Booked it in for monday at garage; they've been v good to me before with a few mechanical issues but never had them look at any ECU issues yet, fingers crossed!

Yes, serves me right for not paying attention!.... Petrol dial reads below empty before the light comes on
Old 12 April 2012, 10:34 AM
  #6  
L.J.F
Instructing with fear
iTrader: (31)
 
L.J.F's Avatar
 
Join Date: Feb 2007
Location: Www.Extreme-rally.co.uk
Posts: 5,101
Likes: 0
Received 1 Like on 1 Post
Default

The car is in limp mode hence the CEL and loss of power.
Old 12 April 2012, 03:06 PM
  #7  
MrNoisy
Supporting Member
iTrader: (28)
 
MrNoisy's Avatar
 
Join Date: Dec 2006
Location: The South
Posts: 4,096
Received 7 Likes on 6 Posts
Default

If it's flashing the car might not be in limp mode.

Loss of power and lumpy running, immediate thoughts are coil packs and / or spark plugs.
The loom plug came loose on one of my coil packs on my bug once once and the CEL came on, car went into limp mode and ran on 3 cylinders - HORRIBLE and chugged like a *******, max speed restricted to about 25-30mph.
Plugged the loom plug back in and cleared the fault code, no problem.

If you get any flat spots on acceleration, check your plugs mate. When was the last time they were done, and were they gapped properly?
Old 12 April 2012, 03:41 PM
  #8  
ketsbia
Scooby Newbie
Thread Starter
 
ketsbia's Avatar
 
Join Date: Aug 2011
Location: Selby
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Default

hmmm.. yes, I did consider that it may be the plugs, I am due to service her over the next couple of months so the plugs are due a change, I'll try and get them done this weekend if I can get a hold of some in time. Pretty sure I'm not running on 3 cylinders though, its not that rough. Its pretty much one big flat spot when it comes to acceleration at the moment!

Cheers
Old 12 April 2012, 03:56 PM
  #9  
MrNoisy
Supporting Member
iTrader: (28)
 
MrNoisy's Avatar
 
Join Date: Dec 2006
Location: The South
Posts: 4,096
Received 7 Likes on 6 Posts
Default

Originally Posted by ketsbia
hmmm.. yes, I did consider that it may be the plugs, I am due to service her over the next couple of months so the plugs are due a change, I'll try and get them done this weekend if I can get a hold of some in time. Pretty sure I'm not running on 3 cylinders though, its not that rough. Its pretty much one big flat spot when it comes to acceleration at the moment!

Cheers
Sounds very much like plugs, although I didn't experience a CEL when my plugs needed doing.
Some people will point you toward the MAF but if you know someone with a fault code reader it will definitely help, saves you throwing money away unnecessarily.

Plugs are a cheap maintenance item and if they need doing anyway you might as well bang em in. You can get away without having to remove the battery too; I did mine in a couple of hours on the driveway on my second attempt and with a better set of tools.

Oh - and if you have the recirc valve, unless the car's mapped for a dump valve, I'd advise you to take it off and return it to recirc - most owners report the car runs far better with it, and I've seen some owners at Surrey rolling road finding their dump valves are causing the car to stall - HKS ones in particular seem prone to this.

Last edited by MrNoisy; 12 April 2012 at 03:59 PM.
Old 12 April 2012, 10:35 PM
  #10  
Stevesbluewrx
Scooby Regular
iTrader: (4)
 
Stevesbluewrx's Avatar
 
Join Date: Aug 2005
Location: Also known as The Gimp
Posts: 3,662
Likes: 0
Received 0 Likes on 0 Posts
Default

OP, where you from? What area?

Steve
Old 13 April 2012, 12:32 PM
  #11  
ketsbia
Scooby Newbie
Thread Starter
 
ketsbia's Avatar
 
Join Date: Aug 2011
Location: Selby
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Default

Steve,

Near Selby, N Yorks. Work in Leeds
Old 16 April 2012, 12:18 PM
  #12  
ketsbia
Scooby Newbie
Thread Starter
 
ketsbia's Avatar
 
Join Date: Aug 2011
Location: Selby
Posts: 7
Likes: 0
Received 0 Likes on 0 Posts
Default

Update: Plugs replaced, engine running ok now, mainley because whoever had it last didnt replace the coil to one of the plugs correctly and it had partially popped off (bolt was through the bracket but not screwed through into the engine block)

CEL light still on though and is now solid, car currently in garage, I suspect its the air filter but we'll see.

Notes to anyone who wishes to replace the plugs themselves:
-You'll need a 75mm long socket extension to your plug socket (I had to buy one)
-I had to fit socked and extension into hole and over the plug and THEN attach the wrench so as to loosen and tighten them
-If you value the skin on your hand get them done in a garage, as I now have none left
Old 16 April 2012, 02:07 PM
  #13  
MrNoisy
Supporting Member
iTrader: (28)
 
MrNoisy's Avatar
 
Join Date: Dec 2006
Location: The South
Posts: 4,096
Received 7 Likes on 6 Posts
Default

Originally Posted by ketsbia
Update: Plugs replaced, engine running ok now, mainley because whoever had it last didnt replace the coil to one of the plugs correctly and it had partially popped off (bolt was through the bracket but not screwed through into the engine block)

CEL light still on though and is now solid, car currently in garage, I suspect its the air filter but we'll see.

Notes to anyone who wishes to replace the plugs themselves:
-You'll need a 75mm long socket extension to your plug socket (I had to buy one)
-I had to fit socked and extension into hole and over the plug and THEN attach the wrench so as to loosen and tighten them
-If you value the skin on your hand get them done in a garage, as I now have none left
LOL - glad to hear the car is running better now you've changed the plugs and tightened the coil pack properly.

I already had a spark plug socket as a socket set I bought came with one. However, I took the rubber boot out of the plug socket as it came off last time I changed the plugs and was a nightmare to get back out again.

Trust me, second time round is easier when you change them.
I changed the lot in just about an hour on the drive, and that's including removing the air box and water bottle (I don't bother with the battery now), gapping the plugs and fitting them.

Also, if you have a smaller ratchet it makes getting into those arkward places a lot easier .

Air filter shouldn't throw a CEL unless you've fitted a CAIK; however you didn't say if you'd cleared it after fitting the new plugs and replacing the coilpacks.

Note that if you have a CEL it won't just go off after you fix the issue; you either need to clear the code, or wait until you've stopped and started the car a few times - it will usually clear itself after 4 or 5 runs if the problem has been resolved.
The alternative is to find a friend with a fault code reader and get them to clear the codes.

Last edited by MrNoisy; 16 April 2012 at 02:32 PM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Scott@ScoobySpares
Full Cars Breaking For Spares
61
11 January 2021 03:08 PM
Scott@ScoobySpares
Full Cars Breaking For Spares
7
14 December 2015 08:16 AM
s_tubb23
General Technical
4
14 October 2015 07:58 PM



Quick Reply: CEL Light Flashing - Drop in power - 02 WRX



All times are GMT +1. The time now is 05:37 AM.