lumsden26 Posted April 9, 2009 Posted April 9, 2009 hi folks had the scooby out fot a 850 miles tour round scotland last weekend(will put some pics on later) and on the way home gave it some stick over a period of an hour then a 30 mins stop then another 45 mins and now feel like its slow to pick up in fifth have i damaged the turbo? the only fuel i could get was the lower octane would this make a difference? cheers mark.
scouk Posted April 9, 2009 Posted April 9, 2009 Could just be the fuel.. It can make a fair difference on performance cars!! Quick indication of turbo failure is generally blue smoke out the exhaust particularly when cold and revs slightlly..
thewelsho Posted April 9, 2009 Posted April 9, 2009 Could just be the fuel.. It can make a fair difference on performance cars!!Quick indication of turbo failure is generally blue smoke out the exhaust particularly when cold and revs slightlly.. I remember AndyF telling me that the car's ECU can learn parameters based on fuel-type and other factors. Seems that your giving it stick with lower octane fuel has caused the ECU to adjsut to suit the fuel. Fill it up with the right stuff and let the ECU find its feet again. The trouble with this, is that the "learning up" process is slower than the "learning down" process. I doubt lower-octane fuel would damage your turbo though.
cullenmin Posted April 9, 2009 Posted April 9, 2009 If it is just an ecu learning curve then you could disconnect the battery for 30 minutes to reset the ecu.
lumsden26 Posted April 9, 2009 Author Posted April 9, 2009 thanks for the advice thankfully there is no smoke will fill up with v-power and see how it goes. cheers mark
thefastone Posted April 9, 2009 Posted April 9, 2009 or if its a classic (I dont know what your driving) You can reset the ECU by following the link: http://www.scoobypedia.co.uk/index.php/Knowledge/ECUReset but then if its in Limp mode, then you might have a fault code, if thats the case (Again for Classics) then check your codes: http://www.scoobypedia.co.uk/index.php/Kno...ngECUCodes#toc3 probably wouldn't hurt to check the fault codes first, at least you know that if it happens again you know what to look for... or it could just be the fuel... I always take octane booster when I know that I'm not going to get the good stuff...
wilky Posted April 9, 2009 Posted April 9, 2009 thanks for the advice thankfully there is no smoke will fill up with v-power and see how it goes.cheers mark Go away, disconnect you battery, have a cup of tea, touch yourself, beat up a pensioner, whatever, about 2 hours later reconnect your battery and use nothing but V power again, and if it doesnt work ill bet you have over filled your oil because of your long run and you boost pipes are blocked so the actuator isnt doing what its supposed to. Take off the pipes from the actuator to the boost solinoid, spray brake cleaner into the pipes cleaning them out, and the boost solinoid, reconnect and all will be well. Callum W
scouk Posted April 9, 2009 Posted April 9, 2009 FYI - Newage ECU's dont fully reset with eh battery disconnect They need to be software reset.. But they do learn quicker than the older ECU's.. Can still take up to 2 tank fulls of good stuff though if it hasn't been reset for a while.. As above.. Best option is to try go for a reset then fill her up with Vpower and hopefulyl that'll sort thigns out.. But if theirs fault codes to be had, best to find out what they are first!
wilky Posted April 9, 2009 Posted April 9, 2009 (edited) FYI - Newage ECU's dont fully reset with eh battery disconnect They need to be software reset.. But they do learn quicker than the older ECU's.. Can still take up to 2 tank fulls of good stuff though if it hasn't been reset for a while..As above.. Best option is to try go for a reset then fill her up with Vpower and hopefulyl that'll sort thigns out.. But if theirs fault codes to be had, best to find out what they are first! Sorry thought It was a classic. But still check your boost pipes. Edited April 9, 2009 by Wilky
thefastone Posted April 10, 2009 Posted April 10, 2009 I just looked (was too lazy before) it is a classic...
lumsden26 Posted April 11, 2009 Author Posted April 11, 2009 will try resetting the acu and filling up on v power. would have taken octane booster but didn't realise how scarece hi octane fuel was in the highlands! thanks again for all the help.
mystery machine Posted April 11, 2009 Posted April 11, 2009 (edited) I would guess that the ECU has pulled back the boost (and timing?) after sensing knock when you were using the low octane fuel. The ECU learning on these cars is quite noticeable (intrusive, even), e.g.: Off work recently for a week - every time I took the car out I had the opportunity to use the rev range a few times. After that week was through the engine performance felt smoother and quicker than it ever had - generally more 'boosty' and predictable. Now that it's had a week of pottering about back and forward to work, it's back into 'economy' mode... Took it out last night for a bit of a caning to help 'persuade' it back into fun mode (where I wish it would stay!). Feels a bit better today... So make sure you give it a decent spirited drive or three after flushing out that "punters' unleaded" Edited April 11, 2009 by Mystery Machine
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