As you may already know, the main problem with air leaks on these cars was not so much vacuum leaks, but ANY air leak which allows air to get into the intake without passing through the air flow meter. When this happens, the car usually will only start and stall, it won't keep running at all, but I guess if there is a really small enough air leak around the lid gasket or the two gaskets where the HSA bolts to the intake manifold, it will continue to run but have an incorrect mixture, since the computer isn't getting the right information from the air flow sensor. I don't know that this would make it run too rich, however - my guess is that such a problem would make it run too lean (thus stumble on rapid acceleration, and maybe pop back through the air intake), but since I've never experimented with this situation, I really am only guessing. I expect the "running too rich" symptom to be caused by a fluid leak inside the intake system. Dick Benjamin ________________________________________ From: mailing-list-owner@xxxxxxxxxxxxxxxx [mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf Of Daniel Mennillo Sent: Tuesday, January 02, 2007 9:52 AM To: mailing-list@xxxxxxxxxxxxxxxx Subject: IML: my 81 with EFI I recieved a few sugestions I,m going to recheck for leakage in hydraulic support assembly and vacuum leaks. I did change the Oxgen sensor with no improvment. I will let you know in a day or two if anything helped. In the meantime I was asked about a right-hand tailight. As soon as I take the EFI parts off any other parts are available. No charge, just shipping. Dan M. ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm