DIY_EFI Digest Thursday, November 4 1999 Volume 04 : Number 623 In this issue: RE: DIY_EFI Digest V4 #622 Motronic ML4.1 newbie Bits and flags 165 See the end of the digest for information on subscribing to the DIY_EFI or DIY_EFI-Digest mailing lists. ---------------------------------------------------------------------- Date: Thu, 4 Nov 1999 08:11:59 -0500 From: Mike Rolica Subject: RE: DIY_EFI Digest V4 #622 Yep, I just push delete too. Mike Rolica EXT. 260 :-) ------------------------------ Date: Thu, 04 Nov 1999 12:01:09 EST From: "Derek Kaznoski" Subject: Motronic ML4.1 newbie I have a '90 Alfa spider with Motronic 4.1. The car has 62K miles and is in excellent condition. It will start after about 6-8 seconds of cranking, but will then just rush once or twice and quit if throttle not opened. It will not idle. It runs great above about 2000 rpm all the way to the redline without any power loss. While holding the rpm at between 1500-2000 (rough in this range), the check engine light flashed a 1223 code (lambda internal control). Over the past few months, I've had intermittent problems with low/rough idle (speed about 600 rpm) and stalling when taking off. Other times there were no problems at all. I'm new to the auto repair game, so please assume that I don't know jack. Here's what I've checked/done so far: Air-flow meter resistances are OK with smooth flapper operation and resistance changes. I tried a spare AFM I have--no real change. Throttle switch is OK. Idle speed actuator gets battery voltage with ignition "on." Spark plugs OK. Tightened up all air intake connections. Replaced fuel filter. The battery is old and probably needs replaced--sometimes cranking is slow. I'm replacing it today. Can this cause a problem with idle? I haven't checked fuel pressure yet since I can't find a fuel pressure guage that is compatible with the car (only domestic Schrader valve types around here). Any tips on where I can buy one? My shop manual says to "supply idle speed actuator with 12V directly for awhile and check for proper functioning." Basically, I just plugged in the connector and turned the ignition to "on" with the bypass hose disconnected. I couldn't see anything happening inside the device. I don't really know how this thing is supposed to function, though. Can anyone enlighten me? Thanks in advance. Sorry for the wordiness. - -Derek Kaznoski '90 Alfa Spider ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com ------------------------------ Date: Thu, 4 Nov 1999 14:49:03 -0500 From: Mike Rolica Subject: Bits and flags 165 Does anybody know the addresses for AF words and the bits for VATS, auto/manual, pwrstr switch, 4rthgear hwy mode spark adv., ld value for BLM not dispflow, or any others on a 89 f-body (not the vette, I know where they are.) I am working on a complete ecu file for 165 on f-body. Also does anyone have the bin for a memcal on one of these? And one for a 730? Like to muck in changing some program code. Mike Rolica EXT. 260 :-) ------------------------------ End of DIY_EFI Digest V4 #623 ***************************** 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".