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Chris_Rogers · Nov 8th, 2003, 09:06

Codes 260A & 261A relate to long term fuel trim at loads higher than idle, basically the ECU is having to go to it's pre-set limits to maintain Lambda = 1

Possible causes:

Air leak in Induction or Exhaust system
Wrong fuel pressure
Injectors leaking
Faulty MAF sensor
Faulty Lambda Sensor
Engine Oil contaminated or level too high.

As code 268A, which relates to fuel trim at idle, does not seem to be logged and you have already replaced the MAF sensor I would start looking at the other things on the list, are there any drivabilty problems or high fuel consumption as well?

If you have and OBDII scan tool I would look a the fuel trim and Lambda Sensor output values both at idle and cruising.

Nov 8th, 2003, 09:06	#4
Chris_Rogers VOC Member Last Online: Apr 10th, 2017 16:55 Join Date: Jan 1970 Location: South Kent Coast	RE: Engine Management Light/Fault Codes Codes 260A & 261A relate to long term fuel trim at loads higher than idle, basically the ECU is having to go to it's pre-set limits to maintain Lambda = 1 Possible causes: Air leak in Induction or Exhaust system Wrong fuel pressure Injectors leaking Faulty MAF sensor Faulty Lambda Sensor Engine Oil contaminated or level too high. As code 268A, which relates to fuel trim at idle, does not seem to be logged and you have already replaced the MAF sensor I would start looking at the other things on the list, are there any drivabilty problems or high fuel consumption as well? If you have and OBDII scan tool I would look a the fuel trim and Lambda Sensor output values both at idle and cruising.