What is code 91? 96 240sx.

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Just another 240
Posts: 902
Joined: Mon Aug 19, 2002 3:52 pm

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Yes I've searched. The search didn't come back with anything with ecu code 91. I've also looked at the ECU Code table, and code 91 is not on it. I cleared the code and it comes right back. Does anyone know what 91 is? Thanks.

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Mangudai
Posts: 261
Joined: Sun Oct 01, 2006 2:54 pm

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Are you sure its 91?
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95vr6man
Posts: 15
Joined: Mon Aug 22, 2005 12:46 pm
Car: 97 240sx, 95 gti vr6

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ive had the same code on my s14 as well.. couldnt figure out what it was either.. ill be following this one. good luck
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Just another 240
Posts: 902
Joined: Mon Aug 19, 2002 3:52 pm

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Yes I'm sure it's 91. 9 blinks, paused, then 1 blink. The car has no obvious defect of performance. No rough idling, no stalling, etc. Anyone?
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