yes On Sat, Jul 14, 2012 at 6:01 PM, Bill Cardell <[email protected]> wrote:
> Do you have. 12 volt to the white/red wires going to the injectors? > > Bill Cardell > Owner, Flyin' Miata > Www.flyinmiata.com > 1-800-FLY-MX5s > 970-464-5600 > > > On Jul 14, 2012, at 3:40 PM, "Eric McCord" <[email protected]> > wrote: > > Latest update. If I spray carb cleaner into the intake tract it runs. I > also tried ANOTHER CAS. It dies when the spray is stopped. > > Eric > > On Sat, Jul 14, 2012 at 5:00 PM, Eric McCord < <[email protected]> > [email protected]> wrote: > >> I have both, but the Data Link Lab expired. I used it for another issue >> and then didn't purchase. I have since purchased it but have not received >> my key code yet. >> >> RPM changes on the keypad as well as INJ. I have +12 and ground at the >> MAP box with the key on. >> >> I have also tried it with the F/P to GND in the Diagnostic connector >> which keeps the pump on and I get the same symptoms. >> >> I just swapped out the connector at the CAS because one of the wires >> looked iffy, but no change. >> >> Eric >> >> On Fri, Jul 13, 2012 at 8:20 PM, Ray < <[email protected]> >> [email protected]> wrote: >> >>> Do you have a keypad or datalogger? If so, do all of the sensor >>> readings look normal at key-on before cranking? Do RPM and MAP values >>> change as expected and do the injector pulse width & ign advance look >>> normal during the brief run that you do get? Do you have gnd and +12v >>> power at the MAP box when the key is on? >>> >>> Since the engine fires briefly but doesn’t continue to run even with the >>> fuel pump jumpered to stay on, I’d guess that the plugs are firing, and the >>> initial start is fueled by prime fuel but the ECU thinks that there is high >>> manifold vacuum or high coolant temp and isn’t supplying enough fuel to >>> continue running ... or maybe the fuel map in the ECU got hosed somehow. >>> The FP shutting off when the starter isn’t running says that something is >>> wrong with the MAP box or connections to it. Normally the ECU turns that >>> transistor on in the map box to keep the FP relay energized as soon as it >>> senses RPM > 60. >>> *From:* Eric McCord <[email protected]> >>> *Sent:* Friday, July 13, 2012 11:39 AM >>> *To:* <[email protected]>[email protected] >>> *Cc:* <[email protected]>[email protected] >>> *Subject:* Re: '91 fires, won't stay on... >>> >>> Swapped out both the ignition switch and CAS. No change. I have only >>> used the Link. I also swapped out the fuel pump before purchasing a fuel >>> pressure guage. I am getting 40 psi at the rail at all times with the key >>> on. It is not looking like it is fuel related. >>> >>> Eric >>> >>> On Fri, Jul 13, 2012 at 2:35 PM, <[email protected]>[email protected] >>> < <[email protected]>[email protected]> wrote: >>> >>>> A long shot here, but it may be that the ignition switch is faulty, >>>> allowing to to start the car and then losing electrical contact, or perhaps >>>> the current from the ignition to the CAS has been interrupted. WAIT! You >>>> are using the Link now, but did you EVER use another method of engine >>>> management? Did you use an MSD? I recall long ago having a problem >>>> develop after I upgraded from the Bell Sys II to full FM II spec with link, >>>> and it turned out that old wiring for the MSD unit had developed a short >>>> (or some problem... was years ago!) >>>> >>>> LGO >>>> >>>> >>>> >>>> -----Original Message----- >>>> From: Eric McCord < <[email protected]>[email protected]> >>>> To: Mark Phillips < <[email protected]> >>>> [email protected]> >>>> Cc: miatapower < <[email protected]>[email protected]> >>>> Sent: Fri, Jul 13, 2012 11:54 am >>>> Subject: Re: '91 fires, won't stay on... >>>> >>>> No luck. I just replaced that transistor and it is still doing the same >>>> thing. >>>> >>>> Eric >>>> >>>> On Fri, Jul 13, 2012 at 10:41 AM, Eric McCord <<[email protected]> >>>> [email protected]> wrote: >>>> >>>>> I am off to the Shack. >>>>> >>>>> Eric >>>>> >>>>> >>>>> On Fri, Jul 13, 2012 at 10:39 AM, Mark Phillips >>>>> <<[email protected]> >>>>> [email protected]> wrote: >>>>> >>>>>> Yes. >>>>>> >>>>>> >>>>>> On 07/13/2012 10:28 AM, Eric McCord wrote: >>>>>> >>>>>> on yours it was T2? Did you just replace the transistor to get it >>>>>> back up and running? >>>>>> >>>>>> Eric >>>>>> >>>>>> On Fri, Jul 13, 2012 at 10:25 AM, Mark Phillips >>>>>> <<[email protected]> >>>>>> [email protected]> wrote: >>>>>> >>>>>>> The relay has 12 volts applied to one side of the coil with the >>>>>>> ignition on. When you jump F/P to GND you are taking the other side of >>>>>>> the >>>>>>> relay coil straight to ground bypassing the transistor. Normally the >>>>>>> transistor performs this grounding function (sinking current). T2 also >>>>>>> interacts with other circuity in the MAF box. >>>>>>> >>>>>>> This happened to me about 4-5 years ago on my '92. >>>>>>> >>>>>>> Mark >>>>>>> >>>>>>> >>>>>>> On 07/13/2012 10:00 AM, Eric McCord wrote: >>>>>>> >>>>>>> When I jump out the F/P to GND the pump stays on but I still have >>>>>>> the same symptoms. If that transistor drives the relay but I jump it out >>>>>>> should that not run? >>>>>>> >>>>>>> Eric >>>>>>> >>>>>>> On Fri, Jul 13, 2012 at 9:54 AM, Mark Phillips >>>>>>> <<[email protected]> >>>>>>> [email protected]> wrote: >>>>>>> >>>>>>>> Hi Eric, >>>>>>>> >>>>>>>> I sent this out earlier but didn't see it repost. I apologize if >>>>>>>> its a repeat. >>>>>>>> >>>>>>>> There is a transistor in the Link box that replaces the AFM; it >>>>>>>> drives the fuel pump relay. It is an NPN transistor, is marked "T2" >>>>>>>> and may >>>>>>>> have failed. About $1.50 and a soldering iron to replace. >>>>>>>> >>>>>>>> Mark Phillips >>>>>>>> >>>>>>>> >>>>>>>> On 07/13/2012 09:40 AM, Eric McCord wrote: >>>>>>>> >>>>>>>> I just swapped out the CAS and same symptoms. If it's a bad MAF box >>>>>>>> where can I get one of those? Since my Baja went down the Miata has >>>>>>>> been my >>>>>>>> only transportation and Kaitlyn and I are leaving in a week and a half >>>>>>>> for >>>>>>>> the dragon and our road trip. >>>>>>>> >>>>>>>> Eric >>>>>>>> >>>>>>>> On Fri, Jul 13, 2012 at 9:18 AM, Ray < <[email protected]> >>>>>>>> [email protected]> wrote: >>>>>>>> >>>>>>>>> Can also be that one of the two signals from the CAS is not >>>>>>>>> there. >>>>>>>>> >>>>>>>>> *From:* Eric McCord <[email protected]> >>>>>>>>> *Sent:* Thursday, July 12, 2012 6:21 PM >>>>>>>>> *To:* <[email protected]>[email protected] >>>>>>>>> *Cc:* <[email protected]>[email protected] >>>>>>>>> *Subject:* Re: '91 fires, won't stay on... >>>>>>>>> >>>>>>>>> Just checked that connector. It looked fine, I reseated it and >>>>>>>>> still have the same symptoms. >>>>>>>>> >>>>>>>>> Eric >>>>>>>>> >>>>>>>>> On Thu, Jul 12, 2012 at 9:07 PM, <[email protected]> >>>>>>>>> [email protected] < <[email protected]>[email protected]>wrote: >>>>>>>>> >>>>>>>>>> Have you checked the manifold pressure connection (heck! I think >>>>>>>>>> that's what its called - I can't remember!) ? If it comes loose, >>>>>>>>>> it may >>>>>>>>>> begin to fire and then die. On mine its the small box with the >>>>>>>>>> AFM-like >>>>>>>>>> connector (multi-pin) on the driver's side. >>>>>>>>>> >>>>>>>>>> LGO >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> Miatapower mailing list >>>>>>>>>> <[email protected]>[email protected] >>>>>>>>>> <http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower> >>>>>>>>>> http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower >>>>>>>>>> >>>>>>>>>> >>>>>>>>> ------------------------------ >>>>>>>>> _______________________________________________ >>>>>>>>> Miatapower mailing list >>>>>>>>> <[email protected]>[email protected] >>>>>>>>> <http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower> >>>>>>>>> http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> Miatapower mailing list >>>>>>>> <[email protected]>[email protected] >>>>>>>> <http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower>http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> Miatapower mailing list >>>>>>>> <[email protected]>[email protected] >>>>>>>> <http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower> >>>>>>>> http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower >>>>>>>> >>>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>> >>>> >>>> >>>> _______________________________________________ >>>> Miatapower mailing list >>>> <[email protected]>[email protected] >>>> <http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower>http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower >>>> >>>> >>> ------------------------------ >>> _______________________________________________ >>> Miatapower mailing list >>> <[email protected]>[email protected] >>> <http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower> >>> 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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