I drove it another 50 miles last night and it finally ran the tests. Three things that happened that might bear on the fix. I cleared the codes (none were set before). I wiggled the ECU wires (I have at least one for the IAC that is loose). I drove above 60 for a while. The O2 and the CAT went within 5 miles of the code clear and the EGR went 2 miles after that.
Ray, It could very well be that a sensor was out of range, but my shop manual does not list the needed values. Do you happen to know them? I do have a live data scanner and the sensors that are fairly obvious (IAT, RPM, coolant temp, OL/CL, etc) looked normal. Brian From: Ray [mailto:[email protected]] Sent: Tuesday, March 06, 2012 6:11 AM To: Brian Pifer; [email protected] Subject: Re: 97 IM readiness issues The ECU won’t start the tests until several sensors are all producing readings in the proper range .. both O2 sensors, both temp sensors, EGR feedback, ambient air pressure, speed, rpm, etc. Do you have an OBDII tool that will display each of the sensor readings (even if it’s only one at a time)? From: Brian Pifer<mailto:[email protected]> Sent: Monday, March 05, 2012 8:43 AM To: [email protected]<mailto:[email protected]> Subject: 97 IM readiness issues My 97 with a FMII is due for tab renewal and I decided to modify it to be IM legal, but I can’t seem to get all the IM readiness monitors to run. O2, CAT, and EGR have not run after 200 miles of test driving. Any suggestions are welcomed. Background info: About 10 years ago, I bought and installed a FMII – rewiring the ECU harness and installing the ballast resistors at the injector harness. When the Link computer came out that matched the stock harness, I rewired it back to original. My car had about 12k miles pre-FMII and now has about 32k miles. My work this last two weeks involved installing the stock ECU, stock injectors with a second injector harness, stock MAF sensor, and moving the power steering wire back to the PS pump. I found that the trunk light was staying on all the time and had to replace a dead battery. Shortly after initial start up, I developed an IAC trouble and it looks like I have a pin in the ECU wiring harness that is making a poor connection – fully seating that wire in the connector has cleared the IAC trouble. I’ve been going thru the factory shop manual’s drive cycle to get the IM readiness monitors to run, I only have 3 monitors to go – O2, CAT, and EGR. My manual says to get each of these to run, to drive in mode 2. Mode 2 is described as driving the car for 5 minutes any way you want, followed by at least 60 seconds of steady speed driving between 50 and 60, with a note that ECU speed may not match dash speed. I’ve driven about 200 miles with most of that at about 57 ECU speed and still these three monitors have not tried to run. Has anyone else run into this and are there any suggestions other than to just keep driving it? ________________________________ _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
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