Unusual Error Code and Idle Rev Question

370z1

Was wondering if you guys have seen this or heard of this before. I have been busy lately with the holidays and have been driving my Truck because the Z was in the garage on jack stands doing an oil change and some other minor stuff nothing that would cause my issue. The issue is when I first drove the Z today everything appear ok but after about 10 minutes the Check Engine Light came on. Then the Low Tire light came on, then the light that has a picture of the key fob came on al within a couple minutes of each other. Now I can't tell if I am in limp mode or not but if I try to Rev the engine while in Neutral it cuts off exactly at 5,000 rpm's, well let me say it better, it just won't let me rev past that point so I am not sure is that normal or should you be able to rev to 8K rpm in idle? I disconnected the neg side of battery for about 20 minutes and then started it back up. All lights were gone but engine still unable to rev past 5K at idle and I haven't driven yet to see if it is ok and I have to get on the road for a 2 hour drive and am thinking I should drive the truck so I don't get stranded? Ok after 10 -12 minutes check engine light came back on. But NO low tire warning and NO key fob warning lights. I did check pressure on all 4 and they were around 32 psi.

I then read the code off the ODBII port and the code coming back reads

"B18C0"

but I can not locate this code or its meaning so I don't know which direction to start my troubleshooting?

Also please know I don't rev the engine in idle it just happened because I sensed something wasn't right, you guys understand, that is why I don't know if it is normal for the computer to prevent rev's past 5k when in idle or if the rev limiter should only stop the rev's from going past 8k regardless if in neutral or in gear?

Anyway, normally I wouldn't post like this and I would do a TON of research before reaching out to you. If you have insight to that code I would appreciate it but if not no worries ok. Please try to just post if you can get me going as opposed to just commenting ok, thanks everyone, you guys rock!!!


Thanks Again,
370Z1 (aka: James)