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I own a 2019 Nissan Armada SV 4WD with 70k mostly highway miles on it. Maintenance done by local dealer; LOF and tire rotations every 5K, keep it clean, etc. No mods, all OEM. It's my people hauler and "drive to work" SUV. I am not mechanically inclined - better to have others maintain the vehicle. But I know how to read, and so am currently stumped and confused...
My "check engine" light came on this past week. The throttle was slow to respond. In park, it high idled. The RPM indicator "hunted". I have a FIXD device, so pulled the codes off the OBD2 connector. First code was P2101, second was P0507. Park the car overnight, and the check engine light is off the following morning for a drive. Then it turns back on. No P2101 code, but did receive a second P0507 code. I checked the engine for anything obvious - loose hoses or clamps. Nothing found. Made sure the gas cap was secure too.
Interestingly, the car runs great on the highway on cruise control. No RPM hunting or delayed speed. Around town though, there is a lag when I hit the gas and it's definitely idling high (1100-1300 rpm).
Brought it to the dealer today. (I know, probably not the best idea.) They run diagnostics. Their recommendation is that the throttle body is bad and needs replaced. ~$1350 to replace it with OEM and then "relearn". When I asked if they can do a vacuum test first, they say "no, the book recommends replacing the throttle body first. Start there. Next would be replace the PCM". When I challenge the dealer to look at other indicators, they tell me "you do have a lot of miles on a 2.5 yr old car."
I am flabbergasted. (Good excuse to use that word.) The Armada is 2.5 yrs old with 70k miles on it. This is my first Nissan. I have owned a lot of Toyota's. Never had a bad throttle body before. Are Nissans notorious for bad throttle bodies and PCMs at 70k miles? Is there anything else I should look for? This sounds nuts.
Any ideas or thoughts? Could bad gas cause this? I am having a hard time jumping right into replacing a very expensive piece of the system as a first attempt to fix it.
Thanks for any help or input!
Here's a screenshot of the FIXD OBD2 reader error codes. Turning the car off overnight and restarting it in the morning only showed the P0507 error; the P2101 was gone.
My "check engine" light came on this past week. The throttle was slow to respond. In park, it high idled. The RPM indicator "hunted". I have a FIXD device, so pulled the codes off the OBD2 connector. First code was P2101, second was P0507. Park the car overnight, and the check engine light is off the following morning for a drive. Then it turns back on. No P2101 code, but did receive a second P0507 code. I checked the engine for anything obvious - loose hoses or clamps. Nothing found. Made sure the gas cap was secure too.
Interestingly, the car runs great on the highway on cruise control. No RPM hunting or delayed speed. Around town though, there is a lag when I hit the gas and it's definitely idling high (1100-1300 rpm).
Brought it to the dealer today. (I know, probably not the best idea.) They run diagnostics. Their recommendation is that the throttle body is bad and needs replaced. ~$1350 to replace it with OEM and then "relearn". When I asked if they can do a vacuum test first, they say "no, the book recommends replacing the throttle body first. Start there. Next would be replace the PCM". When I challenge the dealer to look at other indicators, they tell me "you do have a lot of miles on a 2.5 yr old car."
I am flabbergasted. (Good excuse to use that word.) The Armada is 2.5 yrs old with 70k miles on it. This is my first Nissan. I have owned a lot of Toyota's. Never had a bad throttle body before. Are Nissans notorious for bad throttle bodies and PCMs at 70k miles? Is there anything else I should look for? This sounds nuts.
Any ideas or thoughts? Could bad gas cause this? I am having a hard time jumping right into replacing a very expensive piece of the system as a first attempt to fix it.
Thanks for any help or input!
Here's a screenshot of the FIXD OBD2 reader error codes. Turning the car off overnight and restarting it in the morning only showed the P0507 error; the P2101 was gone.