I've got an '06 Mazda 6 with the 6 speed auto. I'm just starting to troubleshoot NVH issues after the fluid was run a bit low...
But to address your question, one tranny tech I talked to said the prior version of my tranny (sounds like it's your 5 speed) was known to have trouble with the gearshift position sensor. Sometimes it would think it was in neutral momentarily and cause the engine to cut out briefly. He said that sometimes you can see the dash gear indicator lights show this, but sometimes not. He STRONGLY recommended that that sensor be replaced before any real troubleshooting because it is cheap, easy, and often the only trouble. Brian -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ralph Alder Sent: Tuesday, March 23, 2010 3:36 PM Cc: MataPowerList Subject: Only Peripheral Miata Content ... Need Diagnostic help Since the list is pretty quiet, I've got a not a Miata question but a Mazda question: The Car: 2004 Mazda 6 w/ 5 speed auto The Problem: In 5th gear, after torque converter lockup and at speed >40 mph...when accelerating with enough throttle to accelerate but not enough to unlock the torque converter, the engine will miss/hesitate. It might take a few seconds to start missing but it usually will comply. What I've Done: It is the wife's car and she claims to have a good relationship with the local dealer service department where the car goes regularly for oil change, reg. service, etc. I carefully explained to the Service Writer (yes, I know about them) exactly what the problem was. A day and many hands full of cash later, they found a split in the snorkel between the AFM and throttle body that was said to be leaking unmeasured air in. Drove home and the time and cash had no (zero) improvement. Took the car back and again described exactly what to do to make it miss. The SW called to say that the car showed no "codes" and that they could find nothing wrong...again. My Question: There are many more knowledgeable people than I on this list (esp.regarding ECU stuff); to those I ask this question: Can a diagnostic device or even a laptop be connected to the OBDII port on the car to see in real time what is going on with the engine? The SW didn't seem to know if this was possible so, at this time I'm looking elsewhere for a mechanic. It seems that this should be easy to do but since my '90 Miata, with which I am very familiar, has never needed, and probably doesn't even do, this type of diagnosis, I don't know if it is possible. Is it? Sorry for the length but as I said, things have been pretty quiet on the power list of late so I hope offense is not taken. Ralph Alder Team Orphan Aerodyne Orange Co, CA _______________________________________________ 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
