AndyUkImpreza

Hi all, Been for a run today in my99 uk turbo, did around 100 miles and check engine light came on for around 10 seconds then went off n stayed off ???

Not been thrashing it, steady 70 - 80mph on m180 on way back steady away, light came on then then went off, car seems fine, ticks over spot on and pulls well just a bit concerned, standard apart from that silly pipercross induction kit wi alloy pipe, also got a pppptttisssss valve ;-)

Thanks in advance
Andy

Glowplug

iTrader: (8)

Could be absolutly anything Andy, a sensor on the way out maybe Do a fault check and see if it spits anything up, if nothing then just keep an eye on it.

99greenwagon

iTrader: (39)

if it dosent record anything,then its quite likely to be maf sensor as that happened to me,it dosent always record maf if its on way out.

AndyUkImpreza

Cheers for that ;-)

Is it the black wires for the fault checker ?

Andy

Splitpin

Need rid of the induction kit and that fecking horrid pipe ASAP. Even if it doesn't turn out to be directly related to this fault, the two of them together are a recipe for looming disaster. If you're lucky this is the MAF actually telling you it's on its way out (more often than not, they don't fail in a way that actually triggers the CEL), but we'll soon find out.

As B13 has said, black plugs under the dash, ignition on and count the flash sequence on the CEL. Long flashes are tens and short flashes are 1's so two long flashes and three short = 23 (etc.). It can store more than one error so make sure you keep watching and making note until you see the same numbers repeating.

Some of the obvious/common ones are 21: Coolant temp sensor, 22: Knock sensor, 23:MAF, 24: Idle speed control valve, 31: Throttle pos sensor, 32: O2 sensor, 44: Boost control solenoid, 45:MAP sensor or pressure source change solenoid.

As you say MAF sensors often don't give out any obvious clues (let alone a CEL) when they degrade, but in this case, if the check engine light has come on, there will be an error recorded, it doesn't work any other way.

AndyUkImpreza

Ill run the check tomorrow n post results up on here, thanks very much for the info n help , Found someone on here that has a standard air box just waiting for him to let me know when i can pick up

Cheers Andy

AndyUkImpreza

Just done the check n its reading 32 so 02 sensor, does anyone know how much a new one is from subaru main stealers or are there any others available elsewhere with OE equivalent

madscoob

iTrader: (3)

bosch ls02 direct replacement comes complete with wiring kit to fit doddle to do takes about 1/2hour . my 02 did this at random for about 4seconds when on its way out the sensor was the cheep copy . dont bother they do about 6months max . the light flashs at about 70-90 uphill everytime then goes away after a reset .. relace it with above sensor from http://www.hglmotors.com 47.15 inc vat and postage

AndyUkImpreza

Cheers for that mate, will it suit my99 - ye urs had same problem by the sounds of it, when i fit the new one do i need to reset owt,

Cheers Andy

AndyUkImpreza

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99greenwagon

iTrader: (39)

anything that the ecu recordes as in the light comes on......it stores the fault,so whatever codes are coming up,replace faulty part and ensure you reset ecu.otherwise fault is still stored.

AndyUkImpreza

whats best way to reset Ecu, disconnet battery for a couple of mins ???

Glowplug

iTrader: (8)

Follow the guide on JGM's site

http://www.jollygreenmonster.com/ecu.asp.htm

IIRC it takes a couple of hours if you disconnect the battery.

99greenwagon

iTrader: (39)

that just saved me doing it lol.