check engine light
#1
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check engine light
hi can anyone advise my engine check light came on after i went to boot my car last night i hit round 4.5k revs and it started to backfire and lost power just holding back and keep backfireing i pulled up and the engine sounded as if it was hunting. i started her up just now and normaly it goes to 11rpms then dies down as she warms up then engine light is still on and it just doesnt sound to well its a 99 gc8 sti import
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iv had a new maf on it tho aswell its not even that old i used to run an induction kit but then went to panel filter green cotton so could i have a problem thats killin my maf then?
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ill post up the code when i get it done hopefully tomorrow lads.i was driving for few hours last night and she was fine all night then on my way home on duel carrage way i went to give it sum i hit 4.5k then she just holded back and started backfireing on me then the engine check light was on
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iv got another maf in my old induction kit that i think is still alive do ya reckon iv i swapped it for that and tried it? for instance if it did work would it take the engine managment light off
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what mods are on the car? and why did you have a new ecu? sounds like boost cut or could be maf/coilpack/fuel related so pulling the codes and giving some details on the ecu swap/mods will help us point you the right way chap.
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hi lads no not checked yet im trying to get hold of someone with a code reader and the reason for changing the ecu was because the old one was because when i came to starting it up in the morning it struggled to start and at that point i had an induction kit on so i took it to carnetix in melton mowbary she said to me im better with a panel filter so i changed from induction kit to standard air box with green cotten panel filter and a new maf sensor,they tried to do a code test on the ecu i was running and they said it was an austrailian map and jgm couldnt tweek it so they puy me a new ecu in standard then the car was fine, since havin the new ecu my car idles just over 7k rpm sound really low tel ya the truth en the mods i have is afterburner vortex back box and and centre section and the cotton filter thats it
the old ecu just says J2 22611 AF041 A18 000 DOZ UNISIA JECS CORPORATION JAPAN thats all i can tel ya lads and this map was running 1.3 bar
the old ecu just says J2 22611 AF041 A18 000 DOZ UNISIA JECS CORPORATION JAPAN thats all i can tel ya lads and this map was running 1.3 bar
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wot do i have to do mate i looked at the link you posted en i no wot ya sayin it says japan on the ecu so load of **** to me en what do i do then to find out how to get the code up ill go do it now. 700rpm i did mean that
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hey lads iv got 2 green connectors aswell underneith the dash iv fount the black ones i think i plugged them together en the engine light started to flash but didnt see any codes?
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Reading ECU Error codes
Turn OFF the ignition
Connect Error code Connectors :
2 black connectors under dash, connect black to black, they are by your left knee when sat in the drivers seat and often taped back to the loom if they haven't been used before.
Turn ON ignition but don't start the engine
Engine Check lamp comes on flashing either once per second (OK code) or an error code
Error Codes
An Error code is defined as a slow flash followed by fast flash
i.e 2 slow and 3 fast = 23 Mass Airflow sensor.
A continuous on/off at the same speed is no fault found.
Turn OFF the ignition
Connect Error code Connectors :
2 black connectors under dash, connect black to black, they are by your left knee when sat in the drivers seat and often taped back to the loom if they haven't been used before.
Turn ON ignition but don't start the engine
Engine Check lamp comes on flashing either once per second (OK code) or an error code
Error Codes
An Error code is defined as a slow flash followed by fast flash
i.e 2 slow and 3 fast = 23 Mass Airflow sensor.
A continuous on/off at the same speed is no fault found.
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A standard ecu running all those mods sounds like a dangerous combination to me, especially if you've taken the original ecu out.
If your original one has been mapped then it would have been via ECUtek so would have a £150 license on it. Personally, i would have done what you did and put the airbox back on and a new maf then got the map checked/tweaked.
If your original one has been mapped then it would have been via ECUtek so would have a £150 license on it. Personally, i would have done what you did and put the airbox back on and a new maf then got the map checked/tweaked.