how the hell am i going to reset my ecu.

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RJ93SS
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Location: Vancouver, Canada

how the hell am i going to reset my ecu.

Post by RJ93SS »

i've pulled the fuse in the engine bay
i've disconnected the battery and left it for 3hr pushed on brakes.
everything i have read i have tried
i've taken out the fuse and i still get the same stored codes i've found since i've owned this car, please help


the one i need more info on is the test mode way but when i plougged both in i got wierd noises from the engine bay
93SS 04 wrx brakes/slotted w/ hawks--TD05 -- 06 I/C -- 20mm n/a fsb -- Stage 2 -- 550's -- Perrin DIV DP -- 2-3/4 Tit Exhaust -- K&N -- C/C -- A/C Delete -- Grounded -- GT Leather Interior -- WRX/STI Strut Setup -- 17" 225's -- 2 Kids Seats ;)
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PhyrraM
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Post by PhyrraM »

First make sure that you don't have any 'battery' type devices that might be keeping your ECU memory alive.

If you don't, and you've done what you describe above, then I would think that your codes are not stored, but 'live'. That is, they are being detected and stored as soon as the key is turned.
'93 Winestone SS Auto, '91 Pearl White SS.
'93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! In stasis.
'94 FWD and '95 AWD Laguna Blue SVXs.
2017 Pure Red BRZ Limited w/Performance pack
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RJ93SS
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Location: Vancouver, Canada

Post by RJ93SS »

they come on right away without even turning the engine over, i think it was 2 different fuel injectors, maf sensor and iac sensor, i've never had the light come on when driving.

when i connect the green and black connectors i get a weird noise for about 5 seconds and i'm afraid of fing my ecu so i don't take it any further than that, is this what it is supposed to do? or am i doing something wrong? i went by the directions on surrealimage.com
93SS 04 wrx brakes/slotted w/ hawks--TD05 -- 06 I/C -- 20mm n/a fsb -- Stage 2 -- 550's -- Perrin DIV DP -- 2-3/4 Tit Exhaust -- K&N -- C/C -- A/C Delete -- Grounded -- GT Leather Interior -- WRX/STI Strut Setup -- 17" 225's -- 2 Kids Seats ;)
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RJ93SS
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Posts: 853
Joined: Mon Jan 14, 2008 7:55 am
Location: Vancouver, Canada

Post by RJ93SS »

PhyrraM wrote:First make sure that you don't have any 'battery' type devices that might be keeping your ECU memory alive.

If you don't, and you've done what you describe above, then I would think that your codes are not stored, but 'live'. That is, they are being detected and stored as soon as the key is turned.
would an amp keep it alive?
93SS 04 wrx brakes/slotted w/ hawks--TD05 -- 06 I/C -- 20mm n/a fsb -- Stage 2 -- 550's -- Perrin DIV DP -- 2-3/4 Tit Exhaust -- K&N -- C/C -- A/C Delete -- Grounded -- GT Leather Interior -- WRX/STI Strut Setup -- 17" 225's -- 2 Kids Seats ;)
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PhyrraM
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Posts: 1980
Joined: Thu Aug 11, 2005 4:34 pm
Location: Lake Elsinore, CA

Post by PhyrraM »

Certain types of amps could. The capacitors hold a charge and might not be disconnected on power-off.
'93 Winestone SS Auto, '91 Pearl White SS.
'93 Pure White SS EJ20G slanty intercooled, SIDESWIPED! In stasis.
'94 FWD and '95 AWD Laguna Blue SVXs.
2017 Pure Red BRZ Limited w/Performance pack
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RJ93SS
Third Gear
Posts: 853
Joined: Mon Jan 14, 2008 7:55 am
Location: Vancouver, Canada

Post by RJ93SS »

makes sense as my battery is connected to the positve cable on the battery in the trunk, i'll give it a shot.

thanks
93SS 04 wrx brakes/slotted w/ hawks--TD05 -- 06 I/C -- 20mm n/a fsb -- Stage 2 -- 550's -- Perrin DIV DP -- 2-3/4 Tit Exhaust -- K&N -- C/C -- A/C Delete -- Grounded -- GT Leather Interior -- WRX/STI Strut Setup -- 17" 225's -- 2 Kids Seats ;)
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93forestpearl
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Location: Twin Cities, MN

Post by 93forestpearl »

I tried the battery thing on my beater wagon and no reset either. There is no way in hell my wagon would run as good as it does if the maf, tps, iac, purge, an injector, crank angle sensor, and cam angle sensor were all bad.
→Dan

piddster34 at h0tma1l d0t c0m
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RJ93SS
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Posts: 853
Joined: Mon Jan 14, 2008 7:55 am
Location: Vancouver, Canada

Post by RJ93SS »

what if i unplug the ecu completely? could that work
93SS 04 wrx brakes/slotted w/ hawks--TD05 -- 06 I/C -- 20mm n/a fsb -- Stage 2 -- 550's -- Perrin DIV DP -- 2-3/4 Tit Exhaust -- K&N -- C/C -- A/C Delete -- Grounded -- GT Leather Interior -- WRX/STI Strut Setup -- 17" 225's -- 2 Kids Seats ;)
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TurboBeater
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Location: Vancouver, BC

Post by TurboBeater »

That usually works for me, try at least 20 minutes.
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