Go Back   RX8Club.com > Series I Tech & Performance > Series I Tech Garage
Sign in using an external account
Register Forgot Password?

Welcome to RX8Club.com!
Welcome to RX8Club.com,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join RX8Club.com today!

LinkBack Thread Tools Search this Thread Rate Thread Display Modes
Old 10-25-2008, 09:14 PM   #1
Trader Score: (4)
Join Date: Apr 2006
Location: CA
Posts: 55
Send a message via AIM to trancesimulator
P0031 after resetting PCM :-(

I had a CEL p0037 since i gutted my cat and added a wideband.

But just yesterday i took off my pulley kit and installed my Injen intake and put OEM pulleys back on. I got in my car turned ignition on (not starting car) and press brake 20times rapidly oil pressure sweeped half way.

Well after i did that i noticed my AFR changed to being really rich. before i installed and cleared the PCM my aft wher just right around 15.0 crusiing now there in the 11 and 12's.

why would it do it right after i resetted my PCM.????

can anyone help?
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on RX8Club.com!
trancesimulator is offline   Reply With Quote
Old 10-25-2008, 09:17 PM   #2
sold the 8... :(
Trader Score: (7)
Join Date: Feb 2008
Posts: 4,940
I don't know why it would do it, but it means your front O2 sensor is bad

05rex8 is offline   Reply With Quote
Old 10-25-2008, 11:22 PM   #3
Jon316G's Avatar
Trader Score: (1)
Join Date: Dec 2006
Location: Streetsboro, OH
Posts: 6,694
Resetting the PCM (brake pedal) resets the fuel trim.
Give it a few drive cycles and see if it goes back to what it was.
Current Mods: RB REVi Intake & Ram Air Duct, AP Catback Exhaust, MazSport DR Midpipe, AP Pulley, BHR Ignition Coils, BHR/SPEC Flywheel, ACT Counterweight, Exedy Stage 1 Clutch Kit, HD Release Bearing, AccessPort w/MazdaManiac tune, REmedy Thermostat & Water Pump, AFE Short Shifter, Lotek Pod with ProSport Gauges, Axxess iPod Adapter, Illuminated Shift ****, Bridgestone Potenza RE760, OPTIMA 35 RedTop Battery.
Oils: Engine= Royal Purple 5w30, Trans= Redline MT-90, Diff= Redline 75w90
Jon316G is offline   Reply With Quote
Old 10-25-2008, 11:22 PM
Mazda RX8

Paid Advertisement


bad, mazda, p0031, pcm, reset, resetting, rx8

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
error code p0031 Mr.&Mrs.Magic Series I Tech Garage 6 08-24-2008 03:47 PM
cel p0031 Mr.&Mrs.Magic Series I Tech Garage 3 08-14-2008 07:52 PM
Resetting Computer RatedX8 Series I Aftermarket Performance Modifications 7 03-03-2008 10:51 PM
Question: Impact of Resetting Computer crankbaiter RX-8 Discussion 5 07-06-2006 08:47 PM
ECU resetting Tirxer RX-8 Discussion 1 01-30-2004 08:58 AM

All times are GMT -5. The time now is 03:54 PM.

All content Copyright 2007 by Internet Brands, Inc.
Emails Backup