code 31, wierd behaviors

corewitz

New Member
Dec 6, 2005
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Omaha NE
hey all, i have just got done with my engine rebuild and it ran great until it started stalling spontaniously. One minute, it runs and drives great, but then it will stall and not start up again. i came up with code 31 wich is airflow meter signal, so i cleaned out the connector and applied petroleum jelly to the terminals and it didnt help at all. Are these symptoms of an airflowmeter going out?
 

Boost Lee

Bee Doo Bee Doo Bee Doo
Staff member
Sep 13, 2006
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Indianapolis, IN
I believe so...

I'm having the EXACT same problems right now.
Weird that you posted this beause I logged on and was JUST about to make a thread just as this.

It will drive and run great, and then out of no where, as I'm idling down towards a stoplight, the CEL kicks on and my rpm's drop quick, wants to die, and gets extremely rich. Then I'll start going again and the CEL will go away, next stop light is the norm, then it does it later on...
Seems though that after 20minutes of continuous driving, it tends to act normal until the next time I start my car up and drive it again.

My AFM and Air Filter both have seen their share of damage (ie. Rain getting into them) on the count of my air filter sits directly below my headlight...:icon_conf

Eh...I'm getting 550's/Lex so I won't be too worried about it for long. :)
 

corewitz

New Member
Dec 6, 2005
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Omaha NE
im looking at all the ones on ebay, but there all for lexus cars, can i buy one of those and stick it on or will there be major tuning needed with 440s
 

Boost Lee

Bee Doo Bee Doo Bee Doo
Staff member
Sep 13, 2006
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Indianapolis, IN
DREW!!!

I hope you are referring to a STOCK SUPRA AFM...

Not MY STOCK LEXUS AFM!!!

:cry:

You know I'm still buying that, right?

And Corewitz, do NOT use a Lexus AFM without supporting 550cc Injectors.