'03 Murano, ~85,000 miles
Hey everyone, I recently had the battery replaced so thought it would be a good time to try the Air/Fuel Relearn Procedure (yes, different from the Idle Air Volume Procedure).
The good news is that my gas mileage went back up to the normal range of ~20mpg city and about ~26mpg highway (I was getting about 15-16mpg city).
The bad news is that since I had the battery disconnected for so long, my idle is now too low and will die upon normal operating temp restart (TSB NTB05-090.... details available on nissanhelp.com). Per the FSM, I performed the 3 idle relearning procedures associated with the idling, and the CEL/MIL/SES light flashed/stayed solid just like it says it should; however, I can't get the idle to change. I guess part of the reason is that during the last part, the FSM says to start the MO and let it idle for about 20 seconds. The problem is that I have to apply the accelerator a little to get it to stay at idle and not die.
The TSB does NOT give the manual procedures for performing these 3 idle relearn procedures... only gives the instructions for the shop to use the CONSULT-II diag tester/scanner. It does, however, say that if you can't get it to idle, then apply accelerator to 2000 RPM's, and slowly back down to idle for the 20-second duration. Maybe I'll try that tomorrow before taking it to the dealership.
I HATE to pay the dealership $$ when I know exactly what needs to be done but just don't have the darn multi-thousand dollar, off-limit CONSULT-II tester to get it done with!!!
Has anyone else ran into this problem? If so, how did you 'tweak' the manual idle procedure directions to get it to relearn the idle speed correctly?
Thanks for any help!
(BTW, I'm still fairly new to this forum as this is only my 3rd post. I haven't received alot of feedback on my previous posts, so I'm not feeling the love here fellas
... maybe I'm posting to the wrong forum section?)