altima 3.5 set p1211 code, now won't run at all

[biasbob]

Hi all,Car has about 75k miles on it, my daughter drives it. She told me the slip light lit and the car wouldn't go for a few seconds, then the check engine light came on, then it drove ok. I drove it around and it ran great, didn't seem to have any problem. I scanned for codes and got the p1121 code, [electric throttle something or other] then cleared the code. Later that day she tried to start the car, and it had no throttle response whatever, just sat there and idled, and re-lit the check engine light. Where to start looking?Thanks,Bob

[biasbob]

I took off the throttle body, and it seemed very stiff. Having never worked with a drive by wire vehicle, I don't know what it's supposed to feel like. I sprayed a bunch of throttle body cleaner on it and got it nice and clean, it then would spring shut by itself, although it slowed down as it neared the closed position. I got it to start, and idle very poorly, never revving above 2500rpm. The AllData suggested that safe mode was due to a failed return spring. It seemed like there was a bunch of goo that was making the throttle stick. I started it and turned it off, waiting the 10 seconds in between, and on the fourth or fifth try it seemed to run normally. The idle seems a little high, around 11rpm in neutral. I turned it off and restarted it about 6 times, worked the same every time. The service engine light is still lit. I took it for a test drive and it seemd to drive fine, plenty of power and smooth idle. I forgot to take over my laptop with the EASE OBDII software so I couldn't clear the code. [car was disabled over at my daughter's house]. When I clear the code, do you think it's fixed?Thanks,Bob

[biasbob]

Oh yeah, one other think. I put a K&N air filter on it, and I recently had cleaned and re-oiled it. Perhaps that may have contributed to the mung on the throttle body. Anyone experience that?Thanksbob

[low91240sx]

Well based on that data that you have supplied I would put my money on the throttle body you say that you cleaned the ait filter/cone did you let it dry for a good 30 minutes to an hour? if not I would think that it is safe to say that it did in fact get to the throttle body just clean it the best you can and see what happens if all else fail take it to the shop I know it sucks to give it to them but if that's all you can do it's all you can do and do NOT give it to a dealer too many people on here get screwed over hard by the dealer

[digitalbow]

It sounds like you could've not only damaged the throttle body, but the MAF. Don't ever spray/oil anything in your intake system. These throttle bodies and mass air flow sensors have low tolerances.

[biasbob]

I did wait a while, but I did not clock it. I have K&N filters in all my cars and have never had any problem with them. Where is the MAF anyway?Thanks,Bob

[showtimesaltima]

Hi Bob , how are you doing? I have recently ran into almost the same problem and my car kept stalling and would not pick up at all at 5000 rpm. I took her to midas and they ran a computer test. One of the sensors which sounds like the one i had to replace was damaged from oil or even the throttle body cleaner. when cleaning the throttle body the best thing to do if you cant remove the throttle body is put a towel under it so you do not damage that sensor . This sensor helps the car read the camshaft and the throttle body along with it's position sensor. that sensor is located in way under the throttle body at almost the bottom of the engine so you want to becareful not to get that wet. The sensor cost 234 to replace. You can clean the throttle as much as you want and the ecu wont read the throttle or cams due to that sensor being damage . take it to midas . if you take it to nissan they might say you need a new ecm which is 800 I.M. me on aim teminalvilocity let me know what happens . Good Luck.Ps : that senor is under the throttle body not to far from the axle that's why its hard to see it.

[biasbob]

I did remove it before I sprayed cleaner in it, so I didn't get it on anything. I checked the coed to clear them and along with the 1121, it set 1122 and 1102. I did run it without the pipes connected, so I figure that's why the 1102 set. I cleard the codes and she's driving it now, just waiting for the call that the service engine light comes on. I figure if it stays off I'm inthe clear.Thanks,Bob

[biasbob]

It's running fine, but the idle seems a little high, 100 to 1200 rpm. It just started setting the 0507 code, idle air control system higher than expected. I'm worried about the reliability of the car until I get it sorted, as my 21 year old daughter is driving it. She also was just diagnosed with MS, so I really don't want anything the add stress to her life if you know what I mean.Thanks,Bob

[pm_page6776]

You have to do what is called an Idle-air volume relearn from the dealer. They will use their consult 2 scanner and reset the idle. This will correct your check engine light and correct for the high idle problem. If you had TP sensor codes, this procedure will not correct them. The codes may return if the throttle chamber was damaged.

[biasbob]

I did the re-learn without the ConsultII according to the instructions posted on this site. However, the MIL light never behaved according to the instructions, never flashed or went off, so I doubt that it was re-learned. It said that the relearn was required if the throttle control valve had been disconnected. I did the EC 668 and 669, Accelerator pedal released position learning, and throttle valve closed position learning, both before and after i cleared the 0507 code. Not sure how to proceed now. I think perhaps I will order the new part, then take the old one apart and see if I can repair it first. Any input on why the MIL light didn't react according to the instructions? I don't think the throttle chamber was damaged, it cleaned up nicely and is nice and smooth when you operate it manually. It does have a little hitch when it returns to idle, sort of slowing down just before it gets to closed, kind of like it has a dashpot on it to prevent stalling. Is this normal behavior?Thanks,Bob

[low91240sx]

hmm if I were you I would just go ahead and replace it especially if it has a "hitch" in it

and digitalbow HOLY NICE ALTIMA I LOVE IT MAN

[pm_page6776]

Even if you replace it, you will still have to have the IAVL done properly or the p0507 will return.