Larry, Ray and & Bill Thanks. I thought Bosch was a pretty good brand. I've never gotten a code re sensor heater not working. I just keep getting P0171 and the head guy at the auto tech dept. at the comm.. college said to replace the sensor. I'm sure he knows his stuff -- he trains mechanics for the NASCAR teams in his motor sports program and for the area auto dealers in his auto tech program and he's got every piece of equipment, computers and software known to man available, He hooked up to my ODB with a box that talked wirelessly to his computers and he looked at a bunch of graphs, etc., which were Greek to me, before telling me to replace the sensor. The Bosch site says the part # is 13581 (OE type) or or 15730 (universal type) http://tiny.cc/PW32z http://www.boschautoparts.com/RB.NA.AFTERMARKET.BOSCHAUTOPARTS.CMS/templates/Veh iclePartFinder/VehiclePartFinderResultsTemplate.aspx?NRMODE=Published <http://www.boschautoparts.com/RB.NA.AFTERMARKET.BOSCHAUTOPARTS.CMS/templates/Ve hiclePartFinder/VehiclePartFinderResultsTemplate.aspx?NRMODE=Published&NRNODEGUI D=%7bB045EDBE-2735-4740-B308-1FE402C47E2A%7d&NRORIGINALURL=%2fResources%2fVehicl ePartFinder%2fVehiclePartFinderResults%2ehtm%3fYear%3d2002%26Make%3dMAZDA%26Mode l%3dMIATA_%26Engine%3dL4%2b1%2e8%2bGAS&NRCACHEHINT=NoModifyGuest&Engine=L4+1.8+G AS&Model=MIATA_&Year=2002&Make=MAZDA> &NRNODEGUID=%7bB045EDBE-2735-4740-B308-1FE402C47E2A%7d&NRORIGINALURL=%2fResource s%2fVehiclePartFinder%2fVehiclePartFinderResults%2ehtm%3fYear%3d2002%26Make%3dMA ZDA%26Model%3dMIATA_%26Engine%3dL4%2b1%2e8%2bGAS&NRCACHEHINT=NoModifyGuest&Engin e=L4+1.8+GAS&Model=MIATA_&Year=2002&Make=MAZDA I'm trying to learn how to use tiny url -- both of the above links should go to the same place if I got my first attempt correct However, when looking at the pictures the OEM type 13581 @ $111.39 .looks like it's ready to plug in and the universal type 15730 @ $49.79 needs to be spliced. A splice to use the old connector can be made for $61.60!! The Bosch 13275 @ $48.79 looks like it just plugs in but it is not for a Miata (it's for a mid-90s Chrysler; however, it apparently works and maybe better that the recommended replacement) but apparently the plug is different but with some splicing it can be made to plug in. Here is a link to a site where Cliff Knight used it on a 1999 Miata with a Radio Shack 274-224 Molex type connector: http://mymiata.paladinmicro.com/Miata4-WireO2.htm Why use the 13275 instead of the 15370 -- both require the splice but for the price difference between the OEM plug in type splicing is worth the time. Maybe Cliff Knight has done some research and determined the 13275 is superior. He seems to know what he's doing! The link to the Flyin Miata splicing instructions are for cars earlier than my 2002. Still the same colors? Lee -----Original Message----- From: Larry Alster [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 23, 2008 9:25 PM To: 'Lee Davis'; [email protected] Subject: RE: Pre cat Oxygen sensor for 2002 -- Mazda OEM or other brand?
Use the Bosch 13275 sensor. You will have to splice the wires but the sensor only costs 50 bucks. Last a week?? The guy is a moron. Tell that to my 3 Miatas that have had them in the cars for years. You can find the writing at the FM website http://www.flyinmiata.com/support/instructions/ecu/4-wire_sensor.pdf Larry White Knight 1991 Crystal White #99 CSP Silver Bullet 1992 Silverstone #17 SM2 FM I+ Turbo Honey B 1992 Sunburst Yellow #99 SM2L JR Supercharger Whooosh 2004 Titanium Mazdaspeed MX-5 LowCountry Miata <http://www.lowcountrymiataclub.net> http://www.lowcountrymiataclub.net Masters Miata RAGS 074 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lee Davis Sent: Tuesday, September 23, 2008 9:08 PM To: [email protected] Subject: Pre cat Oxygen sensor for 2002 -- Mazda OEM or other brand? After continuing to get the P0171, lean CEL, I took my supercharged, intercooled 2002 Miata to the local tech comm.college and the guru ran a computer program that looked at my oxygen sensor. He said it was lazy -- that it did not read fast enough (crossing the 440 line (or something like that) , up & down on the moving scale, indicating to him that it was slow reading, else the up and down lines would have been closer) and, therefore, my oxygen sensor should be replaced. I think I have determined the Mazda part # to be BP6F18861B (for pre cat) . I think that the one that is # BP6G18861C is the post cat sensor. Anyway the local Mazda parts guy said "be sure to use Mazda parts and not a cheap one like a Bosch, which may only last a week". The OEM part # BP6F18861B is $180.90 @ Trussville Mazda. The local Mazda guy said $295, installed. My generic mechanic said install is $20, for the type with the wire connector. The sensor just screws in and the wires just plug in. Some sensors require you to use the old wire connector and somehow connect the wires on the new sensor to the connector. What do you experts think? Are the after market sensors like Bosch and Walker ( # 25024128) to be avoided? Lee Davis
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