ecu diagnostics

[cefiro-rb20]

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.

[CEF11E]

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.

[cefiro-rb20]

change my afm today..check the diagnosis signal...

same result..

any of you gals experienced the same problem b4?

[sky80]

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...

[cefiro-rb20]

check with

www.rb20det.com

[OkiC33]

Try changing the o2 sensor and then resetting the ECU.

[cefiro-rb20]

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?