DIY_EFI Digest Saturday, July 31 1999 Volume 04 : Number 442 In this issue: RE: DIY_EFI Digest V4 #441 Accidental reposting of DIY-EFI Digests Nox challenges VSS sending unit See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Fri, 30 Jul 1999 15:35:16 -0400 From: "Christopher, Kenneth J" Subject: RE: DIY_EFI Digest V4 #441 Similar to different altitudes requiring jet changes? That makes sense. Hadn't thought about this point before. > Yes, the box is a good way to pressurize everything on the carb and yes > the > fuel pump must reference pressure so fuel pressure remains a constant > above > boost but the carb will still go lean as boost comes up because it cannot > compensate for the increased air density under boost. > ***************************************************************************** The information in this email is confidential and may be legally privileged. It is intended solely for the addressee. Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. When addressed to our clients any opinions or advice contained in this email are subject to the terms and conditions expressed in the governing KPMG client engagement letter. ***************************************************************************** ------------------------------ Date: Fri, 30 Jul 1999 14:10:50 -0700 From: "Buchholz, Steven" Subject: Accidental reposting of DIY-EFI Digests One of the unfortunate side effects of the switch to having the list run in digest mode and given that many people tend to quote an original post for their reply is that entire copies of a DIY-EFI digest get reposted to the digest. Please, when posting a reply to a DIY-EFI post, either cut and paste pertinent text from the digest or create a new message. Another recommendation would be to alter the subject of your new message to reflect the issue to which you are responding. I don't think this is a terrifically big deal, based on the low bandwidth of the list currently, but I for one will appreciate your consideration! Steve Buchholz San Jose, CA (USA) ------------------------------ Date: Fri, 30 Jul 1999 12:01:00 -0700 From: "John T. Luyster" Subject: Nox challenges I have a 1999 Infinity QX4 that I'm trying to get a set of headers emission legal (Smog Exempt) in California. My first test failed because of high Nox. This is determined by a formula they come up with that extends the results out to at least 50K at which point my Nox exceeded that limit. (It would pass a standard street smog test no problem) After some investigation I found an Infinity Service Bulletin that suggested adding a ground wire from the intake manifold to the righthand cylinder head. Further diagnostics revealved a lazy or slow O2 sensor at which time I replaced all four. After this I had the vehicle sniffed to verify any changes. The Nox was down substantially. At this time I set all the SRT's and drove approx. 50 miles to make sure no DTC's popped up. Off to the test lab again and failed again with high Nox. This vehilce has no mods done to it. Factory ECU. The only thing I can think of might cause this high Nox would be the design or flow of the tube off the header to the EGR on the engine. Any ideas???? JT ------------------------------ Date: Fri, 30 Jul 1999 21:14:33 -0700 From: "Mike Pilkenton" Subject: VSS sending unit Does anyone have an extra VSS sending unit that would fit in the GM T-5 trannies? I need to convert an 87 cable T-5 to elctronic VSS. Mike ------------------------------ End of DIY_EFI Digest V4 #442 ***************************** To subscribe to DIY_EFI-Digest, send the command: subscribe diy_efi-digest in the body of a message to "Majordomo@xxx. A non-digest (direct mail) version of this list is also available; to subscribe to that instead, replace "diy_efi-digest" in the command above with "diy_efi".