check engine light comes on
 

Hi all im new to scooby .net . Iv got å 1999 turbo wagon 2.0 lt. when i bought the car About 6 months ago the bloke i bought it of said the check engine light comes one some times . But all it needs is å airflow senor so i got one å gen subaru one but has made no change so gave it å full service . Still the same the light onley seems to come on going up hill in 5th gear but change down to 4th at bottom of hill and Its fine . It all so loose's power the car has been decated allso this was dun befor i had it Can Any one help please.

Does it have a de-cat pipe on?

Its got å sti back box but no cat and Its got å bailey dump valve and that was on it when i bought it . And on the way home from work tonight going up i was going up å mile stright with å slight incline i was in 3rd gear and went to give her some beans and it felt like i was toweing å bus no go at all then the C.E.L came up so drove it steady and it went out also thanks for answering my mes cheers

How dø i tell that is has å decat pipe on it as im all new to the scooby world and no next to nothing About scooby's. So all help greatly recived

Have a look down between drivers side of the intercooler at the pipe that comes from the turbo into the exhaust. If it's got a big bulbous pipe it's likely to have a cat fitted.

If it's a plain pipe (possibly wrapped) then your probably de-catted.

I am wondering if you have a turbo actuator or a lambda sensor problem:wonder:.

Check to see if you have stored faults by using this guide.

http://www.scoobypedia.co.uk/index.p...gECUCodes#toc3

:thumb:

Thanks the trooper il have å look and Let you know as im of back. To work thanks again

Hi all just been out and had å look and it has got å big downpipe from of the turbo and under the car About Were the passenger seat theres Wot looks like å cat then straight through pipe to the back box . And iv got some codes 22 32 and 53 i think 22 is knock sensor but thats it so Any help greatly recived

I would think you intermittant cel is knock sensor.

The fault codes indicate that you have:-

22 - Knock Sensor.
32 - A/F Sensor #1 System
53 - Antenna :wonder:

It could have been mapped to 99/V-Power.

The "Cat" under the passenger seat is a resonator box for sound only.

Here's the list for Code 53:-
53Antenna53Anti-Quick Operation Mode53Communication Error (Time Over)53EGI Control Module EEPROM53IMM Circuit Failure (Except Antenna Circuit)53IMM Control Module EEPROM53Key Communication Failure53Reference Code Incompatibility53Use of Unregistered Key

THANKS ALL the box under pass side is About 8in long and 3in deep by 7in wide . Iv got å subaru knock sensor comeing so Wot is the af sensor and are the codes on 53 anything to be worrey About thanks all again

Looks like an immobiliser type issue with a key without a correct chip in, would clear this and see if it came out again.

Tony:)

The Mass Air Flow sensor on a MY99 is famous for going up the swanney.

New Genuine Subaru one can be bought for £90 to 120 depending on supplier. Buy new and have confidence.

Iv just bought å genuine mass air flow sensor so hope it all turns for the weekend so. I Can get on and fit it . So my exhaust has nothing to dø with the CEL keep coming on .to clear the codes dø i have to reset ecu . Many thanks Troopper and toney

my check engine light came on last week so I looked under the bonnet and the engine was still there so I carried on driving :lol:

I'll get me coat...

You can reset the ECU by disconnecting the battery for a few hours or as per the Scoobypedia Guide.

Check under the turbo to see if you have a sensor going into the exhaust. It should be quite obvious, this could be at fault but this is not being indicated with the codes.

Ok will Let you know How i get on at the weekend HOPE!! When iv fited me sensors and reset ecu the CEL light dose'nt come on. cheers the tropper

Hi all just put me new maf and knock sensor on went to reset the ecu by joining black and green wire's and following scoobypedia's ecu rest i Can't get the CEL to come up as it's allready on like when you normley turn key so i had å look under the dash and found whot looks like å small block connecter iv tryed to put photo up but dosent wont to work . Any advice very much appreciated

Hi all reset me ecu by following gollygreen mønster help pages still saying errer code 32 o2 sensor yet another sensor!!

Hey, I've the same problem with mine.
I've put a genuine MAF sensor.
When I turn on the engine the CEL doesn't pop up, but only when I drove it the light comes on, I don't know what is this.
The car shows some hesitations along 3000rpm,
The CEL is intermitent, goes on and off repeatedly
Really need your help

Hi globy i think it mite be your knock sensor or your o2 sensor as thats Wot was up with mine . As mine was doing the same have you joined the black wires together under the dash well there down by your feet if you lay in the footwell and look up you should see in the mass of wires and there should be some green and black wires . Wot my00 is it as mine is å my99 wagon hope this helps