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Old 28 Mar 2007, 05:03 PM   #1 (permalink)
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Running Problems

Just got my 1995 turbo estate running again after getting a maf from scrappers and changing spark plugs ect ect!
The problem i have now is lack of power!
When the car is cold it will perform great but as soon as the car is running at full temperature and i slam the accelerater pedal down it has flat spots and holds the car back then goes again!!! Have i got a mapping/tuning thing here that i missed????????

Ur help with this one would be appreciated! Thanks
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Old 28 Mar 2007, 06:46 PM   #2 (permalink)
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these cars ecu's learn as they go fuel type how much air its getting and so on so forth and base's all these fators on what has learn throught the running of the engine it is poss that the car has not learned the new settings as it now has new info comeing in from the maf . i would suggest disconnecting the battery for around half an hour this should alow the original fatory setting the be rest hopefully solveing you problem or the new maf from the scrappers is as guff as the old one, hope this helps
here is a link for a few methods of resting the ecu
http://www.subaru-impreza.org/bbs/sh...ad.php?t=11204

Last edited by gordo996; 28 Mar 2007 at 06:49 PM.
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Old 28 Mar 2007, 07:46 PM   #3 (permalink)
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Quote:
Originally Posted by susan43 View Post
Just got my 1995 turbo estate running again after getting a maf from scrappers and changing spark plugs ect ect!
The problem i have now is lack of power!
When the car is cold it will perform great but as soon as the car is running at full temperature and i slam the accelerater pedal down it has flat spots and holds the car back then goes again!!! Have i got a mapping/tuning thing here that i missed????????

Ur help with this one would be appreciated! Thanks
Hi susan may be maf ecu related but whats your spark plug gap on the new plugs-changed mine ages ago and set at about 0.9mm and had a slight miss when accelerating dropped gap to 0.7mm and had gone sometimes can be boost related ie ya can sometimes get partially blown out sparks if the gaps to great at full boost though is usually when youre running more than std boost-failing that would check your coilpacks (if wrx)as theyre usually tempremental if disturbed-hope that helps.
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Old 01 Nov 2008, 03:26 PM   #4 (permalink)
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Re: Running Problems

hi i got an 1995 1.8 gl impreza it too has flat spots when engine is hot may anybody has any suggestions i would by much apreciated
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