cefiro-rb20 Posted January 15, 2005 Share Posted January 15, 2005 i've a problem here.just done some ecu diagnostics on my Mines ECU.This ecu got only one led. Signal came out 12.I believe 12 belongs to MAF sensor circuit.Can anyone tell me if this signal mean that my afm got problem?My ceffy not running smoothly nowadays and sometimes it keep on jerking....and its damn heavy goin on 2nd gear.Worst still it took 23 liter of fuel for 100 km ... pls help.. thx. Link to comment https://www.sau.com.au/forums/topic/61485-ecu-diagnostics/ Share on other sites More sharing options...
CEF11E Posted January 16, 2005 Share Posted January 16, 2005 wow 23 litres of fuel for 100ks!!! sounds like your air flow meter is not reading correctly and the car is running super rich either that or your o2 sensor it dead but it sounds like you need to replace your afm. Link to comment https://www.sau.com.au/forums/topic/61485-ecu-diagnostics/#findComment-1162459 Share on other sites More sharing options...
cefiro-rb20 Posted January 17, 2005 Author Share Posted January 17, 2005 change my afm today..check the diagnosis signal... same result.. any of you gals experienced the same problem b4? Link to comment https://www.sau.com.au/forums/topic/61485-ecu-diagnostics/#findComment-1164892 Share on other sites More sharing options...
sky80 Posted January 17, 2005 Share Posted January 17, 2005 where do you go to find out the diagnostic info for ECUs? i need to find out how to get it into diagnostic mode, and then what means what... Link to comment https://www.sau.com.au/forums/topic/61485-ecu-diagnostics/#findComment-1165157 Share on other sites More sharing options...
cefiro-rb20 Posted January 18, 2005 Author Share Posted January 18, 2005 check with www.rb20det.com Link to comment https://www.sau.com.au/forums/topic/61485-ecu-diagnostics/#findComment-1166326 Share on other sites More sharing options...
OkiC33 Posted January 23, 2005 Share Posted January 23, 2005 Try changing the o2 sensor and then resetting the ECU. Link to comment https://www.sau.com.au/forums/topic/61485-ecu-diagnostics/#findComment-1174951 Share on other sites More sharing options...
cefiro-rb20 Posted January 28, 2005 Author Share Posted January 28, 2005 o2 sensor seem 2b ok.signal shows ok. yesterday spend half a day to disconnect all the electricty socket and spray wit contact cleaner...including the afm..know wat?..ecu diagnosis show reading 55..system ok. on the other hand...its still running slow during 2nd gear...n sometimes jerking... any idea friends? Link to comment https://www.sau.com.au/forums/topic/61485-ecu-diagnostics/#findComment-1183350 Share on other sites More sharing options...
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