Y23DRH Posted September 14, 2014 Share Posted September 14, 2014 (edited) 2500 rpm going down to 1100rpm Drove the car the other day and the rpm wouldnt go lower then 2500 rpm The car was up to running tempture aswell I did notice if you rev the car to 3000rpm when it droped between 2500 and 2000rpm it holds for a couple of seconds then goes back down to 1100rpm Soon as you drive and stop again 2500 down to 2000 rpm with a pause in the rev range Then back to 1100 rpm I have done the throttle body clean the correct way battrey off and unpluged the connections The maf snesor is new 5 months ago but cleand maf sensor just incase I have done the reset methods but nothing is working Every time i change up the gears the rpm revs up insetad if dropping :/ Its bloody dangerious as almost throw the car in to another one infront of me :/ The cars off the road till its fixed any ideas what could be the problem could be ???? Any help would be appreciated ??? Edited September 14, 2014 by F4ABP Quote Link to comment Share on other sites More sharing options...
Martinjj Posted September 14, 2014 Share Posted September 14, 2014 (edited) If it happened right after cleaning the Throttle body then that would probably be the issue but from my experience it doesn't seem like the symptoms of a bad TB clean, so i'm going to say start with the "free" option first and check your pipework around the intakes for a vacuum leak, see that the tubes are in place and not loose, corroded or split anywhere. Edited September 14, 2014 by Martinjj 1 Quote Link to comment Share on other sites More sharing options...
Y23DRH Posted September 14, 2014 Author Share Posted September 14, 2014 Error codes came back as P1274 Air/Fuel Sensor (Bank 1) Rich P1283 Air Fuel Sensor 1 ( Bank 2 ) Quote Link to comment Share on other sites More sharing options...
Martinjj Posted September 15, 2014 Share Posted September 15, 2014 possible causes http://engine-codes.com/p1274_nissan.html Quote Link to comment Share on other sites More sharing options...
Y23DRH Posted September 15, 2014 Author Share Posted September 15, 2014 possible causes http://engine-codes.com/p1274_nissan.html Thank you for your help buddy Quote Link to comment Share on other sites More sharing options...
Toon Chris Posted September 15, 2014 Share Posted September 15, 2014 If you have cleaned the throttle body and changed the MAF you should perform the idle relearn procedure. That should do the trick - unless you have a leak Quote Link to comment Share on other sites More sharing options...
Y23DRH Posted September 15, 2014 Author Share Posted September 15, 2014 (edited) If you have cleaned the throttle body and changed the MAF you should perform the idle relearn procedure. That should do the trick - unless you have a leak Throttle body cleaned and new maf fitted But still got the idle problem Smoke test was performed and no leaks detected :/ But we did find a exhaust leak so that could be the causing it so will get that sorted and redo the idle relearn procedure Edited September 15, 2014 by F4ABP Quote Link to comment Share on other sites More sharing options...
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