2006 STI 2.5 Retarding Ignition?
06 July 2010, 08:08 PM
#1
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2006 STI 2.5 Retarding Ignition?
Hi All,
What sort of things would cause a 2.5 STI 2006 to retard the ignition?
I have had it on Tesco's 99 now for two weeks but it still holds back between 2000 and 3000 rpm.
No warnning lights or smoke etc.
What sort of things would cause a 2.5 STI 2006 to retard the ignition?
I have had it on Tesco's 99 now for two weeks but it still holds back between 2000 and 3000 rpm.
No warnning lights or smoke etc.
06 July 2010, 08:16 PM
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Hi,
Yes I did a data record and a mapper said it was retarding the ignition. We thought it was because its always been run on Sainsburys petrol but three weeks of Tesco's 99 and its only a tiny bit better.
Yes I did a data record and a mapper said it was retarding the ignition. We thought it was because its always been run on Sainsburys petrol but three weeks of Tesco's 99 and its only a tiny bit better.
06 July 2010, 08:22 PM
#4
it could be the ecu has self learnt on the lesser mortals fuel
and is struggling to get right again if you took the battery of for the night then the residule energy would go out of the ecu and youd loose the old paramiters and you could start it from fresh which would relearn on the 99 ron.
and is struggling to get right again if you took the battery of for the night then the residule energy would go out of the ecu and youd loose the old paramiters and you could start it from fresh which would relearn on the 99 ron.
06 July 2010, 08:30 PM
#6
defo works mate i done it on plenty of stuff when my launch x431 wont go onto the area of paramiters i want to do the reset but if youd tryed reset and no faaults are showing on memory or live data then thats abugger,its 1 of them u wish u had an identicle 1 along side to swope out sensors till u find the right 1.
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06 July 2010, 09:17 PM
#18
Dealer is worse than hopeless in most cases as they have far less data than most mappers available.
From the logs I saw it was definitely retarding the ignition. if it is still doing this on the tesco99 then maybe try a tank of vpower to see if that is better.
I would need to look at it and datalog using better parameters than are available through ecuexplorer though - they are just a bit wrong in a lot of cases in that software and limited in scope.
Could be anything from problem with the engine/map to a dodgy vibration in the engine bay or heat shield rattling that is causing it.
From the logs I saw it was definitely retarding the ignition. if it is still doing this on the tesco99 then maybe try a tank of vpower to see if that is better.
I would need to look at it and datalog using better parameters than are available through ecuexplorer though - they are just a bit wrong in a lot of cases in that software and limited in scope.
Could be anything from problem with the engine/map to a dodgy vibration in the engine bay or heat shield rattling that is causing it.
06 July 2010, 09:30 PM
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yeah would be great! The car had AST susspension fitted etc when I got the car but standard exhaust. Was thinking if it could have been mapped with de-cat etc and then all fitted back before selling? Would that give same results do you think?
06 July 2010, 09:38 PM
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Plus had the clutch done as a warrnty thing and they said it was an up-rated clutch, if it was, all that on a car with 19,000 miles and no re-map??? Where about are you Tuesday? PM me if you like?
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