Serious problems about throttle bodies
 

Hi guys I am new to the forums but not a newbie. I recently purchased 2009 370z with only 45K miles. I drove it down no problem. But after few days of enjoying my new car it threw a CEL with the limp mode activated. I stopped on side of road and turn it off and wait about 20 sec and started my car back and it worked fine with CEL on. It was fine till next day it went to limp mode. This time it was worse it didn't start my car till 30 min. Drove it back to the house and I parked it. I have a OBDII scanner so I scan the code P2101, P2119, P2135. So I erased the codes and try to start it again and passenger side TB started making really weird clunking noise. I immediately turn it off and went to forums to research why is my car doing this. Came to conclusion I ordered new throttle bodies. Of course dealer want to take your arm for the cost so I ordered Hitachi which who makes the TBs for this car anyway well most of the Nissan. I changed it out and did all the relearn procedure that I found through forums. Car started up with no problem and drove it around no problem:happydance: till next day went to limp mode like a boss :owned::. Now passenger side TB is making the same weird lound noise.

Is there something wrong with the wire harness? or Do I need to take it to the dealership? Is there anyway I can get extended warranty through Nissan dealership?

I need help guys.

Since the same side is affected, even with a new TB, it sounds like a wiring or ECU problem to me. First thing I'd check is control voltage at TBs. Wiring diagrams, pinouts, &c are in the FSM (see link in my sig).

Let the dealer diagnose the problem, then you can fix it yourself if you wish. Since you're out of warranty your only option is (assuming that the fix is very expensive) is to call Nissan HQ and see if you can get at least a partial refund.

So I took it to the dealership. Told me they will take a look at it. So the service guy came up and told me that it needs relearn. I told him I have done the procedure but it didn't work. He told me we have Nissan trained mechanics. So he brought the car to me with it done and told me they drove it around town no problem. They charged $100. Which I think it's outrageous for something I can do it myself. So I took the car and drove about 10 miles and I got owned again with the limp mode. Took it back to stealership for fix.

My thing is does oil temp being over 200. Does it have anything to do with it? Wouldn't car think it's about to get overheat and start limp mode. ?

So I had service people look at it saying that TB harness is no good so patch me up a new one. I drove it to my house now it was fine till I drove around the town it went in limp mode. I don't know what to do???


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I found the problem somebody before had this car had ecu wires spliced for tb for something. So I just had to redo them. Thank you guys


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Good to know everything worked out :tup:

Was thinking the same thing, sounds like the previous owner may have had the Stillen SC on it, The old style kit you have to splice some of the wires. I had TB issues with my old kit also, :/