Those codes are all pointing at a related issue. A/F ratio falling out of range, heater elements within the O2's out of temp range, EGR sensor or exhaust gas temp falling out of range, etc. There is a few areas to consider... Was any work recently done to the car that may have triggered this? When was the last time you replaced the O2 sensors? Check the O2 connectors and wiring to make sure one of them hasn't contacted the exhaust or melted. Any exhaust leaks especially before the cats? When was the last time you performed an induction service and cleaned the intake, TBs, IAC, etc? The EGR and IACV love to get carbon buildup over the years and can affect flow, similarly can happen to the vac lines to the factory wastegate control solenoid. You mentioned the car felt like it was still running well, so no idle RPM fumbling, hanging, stumbling, etc? Are you running an aftermarket boost control solenoid or OEM? Sorry for the load of questions, but need a bit more to go off of to help point you in the right direction. Even though the vehicle has considerable low mileage, it's still 30 years old. If it's kept in a garage it tends to handle the elements better than sitting out in the external environmental conditions and will need more routine maintenance and care regardless if it's being driven or not. (i.e. 60K / 120k maint w/ timing belt)
By
protoj · Tuesday at 18:48 2 days
Japnortheast April 15th Sunderland Meet
Its that time again
decision was made to make this meet the third week end of April due to Donny show....
Car of show will be held each month throughout the year, based on transmission,
one month Front Wheel drive
one month Rear Wheel drive
one month 4 Wheel drive.......................then return to Front Wheel drive...
The month of April Car of Show will be The Four wheel drive cars.......
Car of the show list - http://www.japnortheast.co.uk/forum/index.php?showtopic=14587
April the 15th at the Stadium of Light, starting at 2pm running until whenever everyone leaves!
Usual mix of stunning Jap Cars all the regulars and much more, Standard attendance now reaching a constant 150+ Cars, Burger van in attendance, JNE Raffle & much much more. We would love to see you all there
Please add your name below if you wish to attend!
Regards
The Admin Team
Convoys to SOL
Details for Teesside convoy : http://www.japnortheast.co.uk/forum/index.php?showtopic=14584
Details for South Sheilds convoy: http://www.japnortheast.co.uk/forum/index.php?showtopic=14582
Details for Chester-le-Street convoy: http://www.japnortheast.co.uk/forum/index.php?showtopic=14583
Details for Ashington convoy: http://www.japnortheast.co.uk/forum/index.php?showtopic=14585