Go to get an eye loupe or a pair of those glasses that are magnifiers and study the board connections and lands with them and you might find a crack or bad joint.
Something like this http://www.harborfreight.com/165x-jewelers-clip-on-eye-loupe-94364.html Larry Alster 91 Miata White Knight 92 Miata Silver Bullet 92 Miata Honey B 04 MSM MX-5 Whooosh 06 WRX STi Subie From: [email protected] [mailto:[email protected]] On Behalf Of Stephen Rigley Sent: Saturday, July 02, 2011 11:13 AM To: Jesus Lara Cc: [email protected] Subject: Re: 91 Link FM2 cutting out and surging..... I resoldered just the connector pins this morning, ECU didn't reboot on wiggle test but would when the cover was tapped lightly. So, its out again, think I'll touch up all joints tonight. I'll be looking for a used board if this doesn't work I guess. Steve On Thu, Jun 16, 2011 at 8:02 PM, Jesus Lara <[email protected]> wrote: I was having the same problem for a few months. I finally went crazy and re-soldered every joint that was not shiny, clean and the correct shape. If it looked funny in any way it got wicked up and new solder put down. I redid at least a quarter of the board and the harness connector, going on four months and not one cut out (knock on wood). On 6/16/2011 12:22 PM, Eric McCord wrote: Latest update. I drove into work the other day and rebuilt the wire from the Link to the Keypad. Also, I re flowed one of the solder points on the keypad that looked like it might have been a cracked solder joint. When I drove home that night I had no cut outs. The next day I drove into work and it cut out once. Then on the way home it did it several times. Today I tried the wiggle test on all the wires I could think of, and it didn't cut out.......but it did twice while was just standing there. Something else I notice was when the Link resets it turns Security back on. Not very reassuring if the keypad dies out on the road. At this point my Miata is no longer dependable enough even just to drive to and from work, let alone taking me and my daughter out on 5k mile road trips like it has the past 2 summers. We were planing a NE trip this year. Eric On Tue, Jun 7, 2011 at 9:43 PM, Eric McCord <[email protected]> wrote: I will try that, but I built a new cable using a round cable that is very durable using new ends. I don't think the cable is the issue. If I disconnect it and it still reboots that would rule it out. On Jun 7, 2011 9:27 PM, "Ray Ayala" <[email protected]> wrote: > And as somebody else already mentioned, don't forget a wiggle test of the keypad cable at both ends. I've seen the connectors fail at both ends and I've also seen the flat cable's insulation fail where the cable passes under the ECU's cover. > ----- Original Message ----- > From: Bill Cardell > To: Eric McCord ; Stephen Rigley > Cc: List, Miata Power > Sent: Tuesday, June 07, 2011 10:57 AM > Subject: RE: 91 Link FM2 cutting out and surging..... > > > If it's rebooting, it's telling you where to look. You're losing power or ground, so I'd be looking at main relay, etc. > And Steve, you lucky bastard seeing the GP. Boring as it was. > > Bill Cardell > TurboDog's Dad > > Flyin' Miata > HELP FLYIN' MIATA GO TO TARGA NEWFOUNDLAND! > Targa Miata Facebook page > FMWestfield > > Sales 1-800-359-6957 > Tech 970-464-5600 Before you call, check out http://www.flyinmiata.com/FAQ/ > > > > > > ---------------------------------------------------------------------------- -- > From: [email protected] [mailto:[email protected]] On Behalf Of Eric McCord > Sent: Tuesday, June 07, 2011 11:20 AM > To: Stephen Rigley > Cc: List, Miata Power > Subject: Re: 91 Link FM2 cutting out and surging..... > > > Steve, > > > I had the ECU out this winter and there were no cold solder joints. I was leaning that way last fall. I am starting to think that the problem is centering around the connectors to the ECU. If your problem is the same then taking out your ECU would have reseated the connectors when you reinstalled. My car was dying continuously when I parked it. I took it for a short drive after getting the WB02 hooked up and there was no cutting out. It made it all the way to work yesterday without rebooting. > > > Eric > > > On Tue, Jun 7, 2011 at 1:02 PM, Stephen Rigley <[email protected]> wrote: > > Hi Eric, > > I'm having very similar issues for the 2nd time, last time it was fixed by retouching the solder on the connector pins on the ECU, MAP box and Keypad. > It started happening this time a few weeks ago, 1 hour into a 3500km drive to the Spanish GP. Same thing every morning until we warmed up the floor with the exhaust ;-) Until then, the car would die every few minutes and I'd yell at my passenger to stomp the floor and off we would go again. > > Steve > > > On Tue, Jun 7, 2011 at 5:42 PM, Eric McCord <[email protected]> wrote: > > Surge turned out to just be a vacuum leak. > > > Bruce - I already built a new cable. So that option seems unlikely. > > > Ray - Unfortunately I lost my Link interface box years ago. > > > Bill - Last fall I was talking with Kieth and he had me do as you instruct. It rebooted. I was hoping the surge and reboots occurring at the same time would have help me isolate the problem, but that isn't the case. We are getting rain for the next few days so I will look at the wiring again next chance I get. > > > Eric > > > > On Tue, Jun 7, 2011 at 10:04 AM, Bill Cardell <[email protected]> wrote: > > As Ray said, datalogs would help a lot. Something simple you can do is select any window other than rpm in the keypad and leave it there while you're driving. If the car cuts out, look at the keypad before you turn the key off. Is it still in the window where you left it or is it now in rpm? If rpm window, it means you have rebooted, so start looking at power and grounds. Wiggle tests can help, as can a multimeter that gives you max/min measurements so you can drive with the meter on say the 12v supply and then look at the meter if the car dies to see if you have lost the 12v. > > Bill Cardell > TurboDog's Dad > Flyin' Miata > 1-800-359-6967 (sales) > 970-464-5600 (tech support) > www.flyinmiata.com > www.fmwestfield.com > > > > > > ------------------------------------------------------------------------ > From: [email protected] [mailto:[email protected]] On Behalf Of Eric McCord > Sent: Tuesday, June 07, 2011 12:53 AM > To: List, Miata Power > > Subject: 91 Link FM2 cutting out and surging..... > > > > ok.....I finally got my 91 back out on the road. I have the WB02 installed and all seemed well on the drive into work (35 miles). No surging at idle and no cutting out while driving. When I started home after work the ECU drop outs started and the surging is back. > > > I had the Link out earlier and checked for cold solder joints....none found. I reseated the chip and checked all the connections at the ECU. What could cause both the hunting for idle and dropping out the ECU causing the engine to die? I am thinking a ground problem, but I wanted to float this out to the collective to see if there is some other explanation. > > > Eric > > > > > _______________________________________________ > Miatapower mailing list > [email protected] > http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower > > > > > > > > > ---------------------------------------------------------------------------- -- > > > _______________________________________________ > Miatapower mailing list > [email protected] > http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower at the connector on the ypad _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
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