DIY_EFI Digest Wednesday, August 25 1999 Volume 04 : Number 487 In this issue: Wide range O2 sensor. Re: lean and rich Re: Prom Carriers re: lean & rich Re: Idiot questions from lazy newby Learn to drive people!!! See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Tue, 24 Aug 1999 12:43:07 -0700 From: "John Dammeyer" Subject: Wide range O2 sensor. Hi All, In a previous post someone mentioned that the stock O2 sensors have a very narrow band for mixture tuning and that to get an O2 sensor that had a broader window would be very expensive. Ok. Where do I go to buy such an O2 sensor? What's the part number? Is it possible to get a datasheet on the device? Thanks, John ------------------------------ Date: Tue, 24 Aug 1999 17:50:51 -0400 From: Shannen Durphey Subject: Re: lean and rich Mike Jensen wrote > > DIY_EFI Digest Tuesday, August 24 1999 Volume 04 : Number 486 > > In this issue: > > lean & rich > Prom Carriers > > See the end of the digest for information on subscribing to the > DIY_EFI or DIY_EFI-Digest mailing lists. > > ---------------------------------------------------------------------- > > Date: Tue, 24 Aug 1999 08:35:57 -0400 > From: "Jensen, Mike" > Subject: lean & rich > > This may sound like a very silly question, but when it is said that an > engine is running lean it means that it is getting excess air for the > amount of fuel that it is getting , and vice versa for a rich burning > engine (excess fuel for the amount of air that it is getting) Yes. Lean and rich are relative terms. Lean can mean "so much air that the mixture won't burn" or "just enough extra air to melt a piston". 14.7:1 air:gasoline ratio provides most complete combustion. Lean and rich increase and decrease the amount of air from there, respectively. Shannen > > Michael H. Jensen > Mechanical Designer > Environmental Tectonics Corp. > 125 Jamesway > Southampton Pa. 18966 > Phone (215) 355-9100 Ext. 276 > Email mjensen@xxx.com> > > ------------------------------ ------------------------------ Date: Tue, 24 Aug 1999 17:51:56 -0400 From: Shannen Durphey Subject: Re: Prom Carriers Mike Poore wrote: > Date: Tue, 24 Aug 1999 10:55:53 EDT > From: Mikepoore@xxx.com > Subject: Prom Carriers > > Is anyone interested in buying some 24 or 26 pin prom carriers for gm ecms? > > Mike Poore > Are you selling or looking for a co-purchaser? Shannen ------------------------------ Date: Tue, 24 Aug 1999 15:47:12 -0700 From: "John Dammeyer" Subject: re: lean & rich Your are right but actually, I look at it the other way around. When an engine is running lean I think of it as not enough fuel for the amount of air that the engine is getting and when running rich it's getting too much fuel for the amount of air that it's getting. I see it easier this way because unless I control the throttle plate too, the only phyisical control I have over the engine is the amount of fuel I deliver through the injectors. If it runs rich I am providing too much fuel, not too little air. Regards, John >Subject: lean & rich > >This may sound like a very silly question, but when it is said that an >engine is running lean it means that it is getting excess air for the >amount of fuel that it is getting , and vice versa for a rich burning >engine (excess fuel for the amount of air that it is getting) > >Michael H. Jensen ------------------------------ Date: Tue, 24 Aug 1999 21:35:26 -0400 From: Bill Shaw Subject: Re: Idiot questions from lazy newby I don't think you said what type of car it is, but I think I'd start by finding it's mid 80s to early 90s closest equivalent in a junkyard and scavenge the intake, throttle body, sensors, wiring harness, computer, air cleaner, plumbing, and anything else that may look interesting. That can usually give you a real good head start. I was lucky enough to connect with a guy who was parting out a FI Spider. You can see it at http://www.connix.com/~bshaw/fiatefi.html. If you want to get real fancy, you might also take a look in the efi-232 list, it looks like they're starting a group buy on the new EFI-232 board. - --------------------------------------------------------------------- Bill Shaw '78 FI Spider (Will soon be) Fuel injected and stepping out over the line http://www.connix.com/~bshaw/fiat.html - --------------------------------------------------------------------- ------------------------------ Date: Wed, 25 Aug 1999 13:31:05 +1000 From: Wayne.MacDonald@xxx.au Subject: Learn to drive people!!! I am sure I am not the only one having trouble wading through the re-posted-posted-posted stuff, Take the time to cut out only the piece you are sending the reply to and put a relevant subject, RE: Digest #999 means nothing to me. ------------------------------ End of DIY_EFI Digest V4 #487 ***************************** To subscribe to DIY_EFI-Digest, send the command: subscribe diy_efi-digest in the body of a message to "Majordomo@xxx. 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