Auldy Posted June 19, 2006 Posted June 19, 2006 About a week ago i filled my subaru up with just plain unleaded instead of optimax because ther was no optimax at the pumps. the car ran fine untill the normall unleaded got in the system and engine started splutterin n' backfiring. now the engine dies and speeds up on idle, dies when puttin the foot down even jus a little while driving and dusnt seem 2 have as much power. jus wondering if anyone has any ideas of wot the problem could be before i take the car to teh garage to get checked out.
phil Posted June 19, 2006 Posted June 19, 2006 Pop some Octane booster in and then make sure you fill up with Super Unleaded in future I assume you have an import? Rather than a UK spec car Phil
Auldy Posted June 19, 2006 Author Posted June 19, 2006 Yeh its a 99 wrx sti import! Have tried octane booster and cleaned the idle control valve, also filled up with optimax since but still running with the same problem.
the squiggle Posted June 19, 2006 Posted June 19, 2006 99 WRX STI will be gagging for 100ron fuel, the ECU in the car would have been seeing Det and pulling the ignition back as far as possible Get that **** out the car asap by lots of low revs driving round town or open the tank hatch and pump it out into a bucket Once the tank is empty, refill with Optimax and a bottle of booster and then reset your ECU by using the black and green plugs under the dash or going to a local Subaru garage and getting them to plug in the Select Monitor with the purpose of resetting the ECU due to poor fuel. If this happens again go for BP Ultimate plus booster as a poor alternative or Q8 Super Unleaded plus booster as a really poor alternative. Keep some Octane Booster in the boot and use this in the tank before filling up and always use Super Unleaded of any variety as a minimum if you cannot access a Shell, BP or Q8.
Auldy Posted June 19, 2006 Author Posted June 19, 2006 Thanks will try that, wher about exactly are the black and green plugs under the dash and how do i use them to reset the ECU?
the squiggle Posted June 19, 2006 Posted June 19, 2006 Look under the dash at the steering column You will see, might be taped up out the way if never used before, 2 Green connectors and 2 Black connectors. With the car at operating temp, this is important Switch car off and remove ignition keys Connect the 2 Black together and then the 2 Green. Turn on the ignition and you will hear the fans switching on and off, the boost solenoid clicking away on the drivers strut area, and the fuel pump switching on and off. This confirms the car is in diagnostic mode. Before you start the car hold the throttle to the floor for 30secs and then halfway for 30secs then release Start the car and drive it After a short time the Check Engine Light will steadily flash with an equal on and off flash. This steady flashing sequence now idicates that the ECU has been reset back to factory perameters. Switch off engine and disconnect the Black and Green connectors. Your ECU is now reset. --------------------------------------------------------------------------------------------------------------------------- Now with Optimax and booster in the tank take her out for a spirited run and the ECU will learn its new fuel quality and run accordingly. ---------------------------------------------------------------------------------------------------------------------------- If you get a abnormal unsteady sequence of Check Engine Light flashes then the ECU is detecting a fault and will not reset the ECU until the faulty component is fixed or replaced. This code will give a long flash first then a short flash like 2 long light flash and 3 quick flashes would be a code 23 Or Take it to Subaru and ask them nicely to reset the ECU with Optimax and booster in the tank
the squiggle Posted June 19, 2006 Posted June 19, 2006 or take it down for Chris at East Linton Services to have a look at it
Auldy Posted June 20, 2006 Author Posted June 20, 2006 got the problem sorted out. took the car down 2 Andy Forrest 2 have a look over it and found out it was the airflow sensor that was playin up, fitted a new 1 and is running as gd as ever. thanks for suggestions n help anyways guys.
the squiggle Posted June 20, 2006 Posted June 20, 2006 Pah Andy Forrest what does he know.......[] Twas thinking the MAF if the reset did not work but the putting normal unleaded in her was more coincedence Glad your back on the road
ormiboy Posted June 20, 2006 Posted June 20, 2006 I think i passed you in tranent last week, nice motor. Welcome to skintdom.... See Ya round Willie
Auldy Posted June 20, 2006 Author Posted June 20, 2006 cheers mate, yeh am always floatin bout tranent. wot colour motor is it that u drive?? u got the navy scooby??
frank c Posted June 20, 2006 Posted June 20, 2006 No that might be mine...[] Is your car the Grey one with the body kit / bumpers ?? He drives a black one..[]
Auldy Posted June 20, 2006 Author Posted June 20, 2006 yeh gun metal grey with the veilside kit. i'll need 2 watch out for you pair, just give me a wave on the passing []
frank c Posted June 20, 2006 Posted June 20, 2006 Nice motor ...Certainly stands out from the crowd.. Passed you a few times when i've been in my work van.. Don't think i've passed you in the Scoob yet............................Maybe in Musselburgh though !!
Auldy Posted June 20, 2006 Author Posted June 20, 2006 maybe passed me in musselburgh, make my pit stop at the shell garage 1 or 2 times a week [] jus hate it wen the petrol light comes on
frank c Posted June 20, 2006 Posted June 20, 2006 Musselburgh Shell garage is closed for new tanks..7 to 8 weeks i think... Pain in the ar$e for me ...i'm only round the corner...[] Now it's either Seafield Rd , Newtongrange , Abbeyhill or Dreghorn... I'm not sure where the other local-ish Shell stations are.. Frank.
Auldy Posted June 20, 2006 Author Posted June 20, 2006 totally forgot bout that glad you reminded me, yeh seafield it is for time being [:@]
ormiboy Posted June 21, 2006 Posted June 21, 2006 Quote cheers mate, yeh am always floatin bout tranent. wot colour motor is it that u drive?? u got the navy scooby?? Im in the black classic with Ver 5 spoiler and the six spoke gold rotas on. As the name suggests im usually cutting thro tranent on the way to ormiston. Take it easy:)]" src="/emoticons/emotion-1.gif" width=56>
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now