FWIW, I think you mean bank 1, sensor 2, but the delay thing may be a function of your scanner. The cheapo one I have plugs in and immediately reads all the sensors. If the sensor is *really* bad it will set a code, but marginal might not. Only really good way to actually check the sensors and cat would be with a two channel scope.
Bill Cardell TurboDog's Dad www.flyinmiata.com www.fmwestfield.com Sales 1-800-359-6957 Tech 970-464-5600 Before you call, check out http://www.flyinmiata.com/FAQ/ ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Stephanie Turner Sent: Wednesday, September 17, 2008 1:01 PM To: 'Adam Wolf' Cc: 'Miata Power List' Subject: RE: OBDII readiness monitors... I would get this scanner instead. http://www.auterraweb.com/dynoscankitwindows.html It give 16 sensor's real time data + fuel mileage info. It also gives you the status of all system self checks/readiness monitors. We use this one daily and it works great! It can also work with a Palm. It is not the cheapest one on the market, but the only problem I had with it was resolved very fast and professionally. On Wed, Sep 17, 2008 at 12:29 PM, Bill Cardell <[EMAIL PROTECTED]> wrote: I don't think I said anything about it being the scanner. But a typical scanner should show 02 real-time for both sensors, which would tell you if there is actually a problem with a sensor or wiring. The catch - if there is truly a problem with the O2 sensor or wiring - the '97's will throw a CEL. Even for Bank 2 sensor. You can monitor the bank 2 sensor with "live data readout", but remember the car has to be driven XX number of miles before sensor # 2's voltage will be visible on the live data readout. Stephanie BEGi/Bell Engineering Phone: 830-438-2890 Fax: 830-438-8361 www.bellengineering.net From: Adam Wolf [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 17, 2008 1:43 PM To: Bill Cardell Cc: [EMAIL PROTECTED]; Miata Power List Subject: Re: OBDII readiness monitors... it's a borrowed Scangauge II (thanks Sam!) which I've got no clue how to display o2 sensor data. o2 sensors are not present in the "gauge" portion of the screen and I have no idea which code to punch into the CMD part of the screen to give o2 output. I can get it to tell me which monitors aren't ready, but not much more. It's a fun device, but not a great code scanner. A google search of how to do this has given me nothing. I only found a youtube vid of a guy in a truck with the Scangauge showing o2 output, not how to make this magic actually happen. I'm *this* close to buying a real scanner. My Palm-based scanner did this, but it has since broken. I'll check on the mazdaspeed forum for that monitor reset. Thanks! Adam On Wed, Sep 17, 2008 at 12:29 PM, Bill Cardell <[EMAIL PROTECTED]> wrote: I don't think I said anything about it being the scanner. But a typical scanner should show 02 real-time for both sensors, which would tell you if there is actually a problem with a sensor or wiring. Bill Cardell TurboDog's Dad www.flyinmiata.com www.fmwestfield.com Sales 1-800-359-6957 Tech 970-464-5600 Before you call, check out http://www.flyinmiata.com/FAQ/ ________________________________ From: Stephanie Turner [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 17, 2008 12:26 PM To: Bill Cardell; 'Adam Wolf'; 'Miata Power List' Subject: RE: OBDII readiness monitors... It is not the scanner, it is the readiness monitor that has not reset. I think he said there were no engine codes. Adam, you can take the car to an AutoZone, Napa, O'reilys etc... and they should be able to read the codes AND readiness monitors for you prior to going back for inspection. However, if you only have 500 miles on the new ECU, you might give it a few more. The Rear O2 sensor and EGR monitors are the very last ones to reset/test. There is another method that someone on the Mazdaspeed forum came up with to reset all the monitors. You might try searching for it to see if that one will help. Stephanie BEGi/Bell Engineering Phone: 830-438-2890 Fax: 830-438-8361 www.bellengineering.net From: Bill Cardell [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 17, 2008 1:22 PM To: Adam Wolf; Miata Power List Subject: RE: OBDII readiness monitors... And why won't your scanner read the 02s? Bill Cardell TurboDog's Dad www.flyinmiata.com www.fmwestfield.com Sales 1-800-359-6957 Tech 970-464-5600 Before you call, check out http://www.flyinmiata.com/FAQ/ ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam Wolf Sent: Wednesday, September 17, 2008 12:18 PM To: Miata Power List Subject: Re: OBDII readiness monitors... Yeah, even the ps wire is hooked back up.... On Wed, Sep 17, 2008 at 12:12 PM, Bill Cardell <[EMAIL PROTECTED]> wrote: Did you rewire back to stock completely? Ps wire hooked back up to pump, etc? Doubt it would affect readiness, but worth a try. Bill Cardell TurboDog's Dad www.flyinmiata.com www.fmwestfield.com Sales 1-800-359-6957 Tech 970-464-5600 Before you call, check out http://www.flyinmiata.com/FAQ/ ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Adam Wolf Sent: Wednesday, September 17, 2008 12:10 PM To: Miata Power List Subject: Re: OBDII readiness monitors... I'm actually on my 2nd ECU. My stock one ran like crap (bucking and not setting the monitors) so I swapped in a spare that I bought a couple years ago when I suspected my original ecu of not working correctly. The replacement runs fine. Very smooth. but the monitors still don't set. And this new one indeed has about 500 miles on it. I'd dearly love a hardware reset button. On Wed, Sep 17, 2008 at 11:59 AM, Brad Franks <[EMAIL PROTECTED]> wrote: This may sound stupid but... Is there some sort of "hardware reset" for the ECU? On computers it would be the "BIOS Reset" jumper. There has to be a way of resetting the eeprom on the stock ECU to factory fresh simply for troubleshooting purposes. Otherwise, is there another ECU in the area you can borrow? Either from a 97 or 99? Adam Wolf wrote: no, I'm not getting a code. (I'd give an eyetooth for an actual code, helpful or otherwise). it's just the readiness monitors not setting. AFAIK, the monitors deal with both o2 sensors. I will, however, recheck the sensor wiring. Wish I could get the Scangauge to show o2 sensor output...
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