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Major Codes being thrown CEL

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Old Sep 4, 2010 | 08:02 PM
  #1  
bakerac's Avatar
bakerac
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From: Troy NY
Default Major Codes being thrown CEL

The car is undriveable untill I figure it out.

1446 evap canister vent valve circuit
2122 TPS sensor // switch D circuit low input
2138 TPS sensor //switch D / E voltage correlation
1229 Sensor power supply



Pending:
0550 power steering pressure sensor circuit malfucntiuon
0507 idle control system RPM higher than expected





PLEASE HELP!

Thanks guys
Adam

Last edited by bakerac; Sep 6, 2010 at 06:10 PM.
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Old Sep 4, 2010 | 10:04 PM
  #2  
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winchman
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I have zero experience with this sort of thing, but 1229 looks like it might cause a lot of other things to look bad. If the sensor power supply isn't right, the sensors themselves can't put out good signals.
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Old Sep 5, 2010 | 05:24 AM
  #3  
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2000atlanticgt
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Download EC section of FSM, go to page 494 and follow DTC diagnostics for DTC P1229. It will have you check engine grounds, 5V signal to accel pedal, etc. to determine the source of your issue.

Edit, added link to FSM:
http://www.nicoclub.com/FSM/350Z/

Last edited by 2000atlanticgt; Sep 5, 2010 at 05:51 AM.
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Old Sep 22, 2010 | 03:21 PM
  #4  
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bakerac
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Well they found whats wrong. Its a wiring short. a broken wire in harness behind the radiator. Im hoping it stays fixed, well see.
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