Last post on Dec 25, 2010 at 9:12 PM
You are in the Mazda MPV
What is this discussion about?
Mazda MPV, Van
#10 of 68 Re: Also have Choking/Shuddering problem & STILL have shift shock!! [kinko]
Jan 18, 2006 (5:39 pm)
kinko go to your dealer and request TCM reflash if it wasn't performed yet, it should, but maby it wasn't
US BULLETIN No: 05-003/04 DATE: 05/2004
CAN BULLETIN No: N/A
APPLIES TO: 2003-2004 MPV AFFECTED VINs: JM3 LW28** 30 367822 - JM3 LW28** 40 518096
SUBJECT: Mazda Special Program (MSP03) - Shift Shock - Transmission Control Module (TCM) Reflash
2003 - 2004 MPV vehicles built from April 1, 2003 through January 26, 2004
2003 VIN Range: JM3LW28**30367822 - 378984
2004 VIN Range: JM3LW28**40500013 - 518096
The vehicle's automatic transaxle (ATX) may exhibit shift shock while the engine warms from cold to normal operating temperature. The symptom is intermittent, it does not occur all the time. The shift shock usually occurs during 1-2 or 2-3 upshifts, or 3-2 part throttle downshifts.
In most cases, the cause of the shift shock is from the TRANSMISSION CONTROL MODULE (TCM) software calibration. A new software calibration is available on ESI to correct the shifting concerns.
UNDER THE MAZDA SPECIAL PROGRAM (MSP03), ALL CURRENT DEALER INVENTORY AND RETAILED VEHICLES FOUND TO BE WITHIN THE ABOVE VIN RANGES, AND PRODUCED BETWEEN APR. 1, 2003 THROUGH JAN. 26, 2004, MUST BE INSPECTED AND REPAIRED ACCORDING TO THE INSTRUCTIONS CONTAINED IN THIS SERVICE BULLETIN.
BEFORE PERFORMING ANY REPAIR, VALIDATE THAT THE VEHICLE IS APPLICABLE TO THIS PROGRAM BY PERFORMING AN "eMDCS WARRANTY VEHICLE INQUIRY" AND VERIFYING THE VEHICLE DISPLAYS CAMPAIGN "MSP03". SEE "VEHICLE INSPECTION PROCEDURE" BELOW.
Inspect and repair all current dealer inventory according to the procedures contained in this service bulletin.
When a retail vehicle is brought into the dealer for any type of repair or scheduled maintenance, inspect and repair the vehicle according to the procedures contained in this service bulletin.
#11 of 68 Re: Also have Choking/Shuddering problem & STILL have shift shock!! [lazyfox]
Jan 20, 2006 (9:10 am)
I doubt that I could duplicate the symptom in realtime. Because it is intermittent, it does not occur all the time. The dealer told me time after time that they won't do anything 'til they see it happens.
#12 of 68 Re: Also have Choking/Shuddering problem & STILL have shift shock!! [kinko]
Jan 22, 2006 (12:18 am)
When a retail vehicle is brought into the dealer for any type of repair or scheduled maintenance, inspect and repair the vehicle according to the procedures contained in this service bulletin."
If your MPV was not reflashed with the latest software, they have to do it if your VIN is within the range of the TSB, read above. If they would not do it, contact Mazda and complain about the dealer or find another dealer who will do it.
#13 of 68 Re: Also have Choking/Shuddering problem & STILL have shift shock!! [kinko]
Feb 24, 2006 (7:33 pm)
We have an 04 LX with 28,000 miles. We had the shift shock issue back in 04. I described it as if someone was rear ending the car when it changed gears. The TCM flash fixed this issue. In Jan Feb 06 we had two more issues. When put in park the engine would rev to 2000 rpm and stay there. If you tried to put the car in drive it would stall and would not restart unless you waited an hour or so. Took to the dealership they found a faulty temperature sensor. It was telling the computer the engine was freezing. The second issue was a shutter while stopped and the engine was in drive. It also occurred at highway speed when coasting and then applying the gas. It felt like the transmission could not decide what gear to be in. Took it to the dealer ship, they tested, the mechanic took it home, found a bad ignition coil part code AJ51-18-100A Ignition Coil. Replaced and the car runs great again. No hesitation or transmission issues now.
#14 of 68 MAP sensor location in 2003 MPV
Apr 24, 2006 (9:16 am)
I have an '03 MPV, and I was wondering if anyone knows the location of the MAP sensor. I googled it and searched all over, but couldn't find anywhere that could give an accurate and definite location. If anyone knows and could post it, and possibly also post if and when they changed it, difficulty, cost, etc..., that would be great. I have 3 codes in the computer right now, but I suspect that all 3 are related to the MAP sensor.
#15 of 68 Re: MAP sensor location in 2003 MPV [hokiefan33]
Apr 25, 2006 (6:13 am)
I suspect you didn't find it because you are look for the wrong sensor. If I am right, you are looking for the MAF sensor, as in Mass Air Flow sensor. That on is located on the duct between the air filter and the intake manifold, right on top, you can't miss it. (Let em know if you don't find it and I'll send you a picture). The sensor is expensive; try cleaning it before replacing it. For that purpose use a spray that is an electrical cleaner and make sure it does not attack plastic. Good luck and let me know!
#16 of 68 Re: MAP sensor location in 2003 MPV [criledo]
Apr 25, 2006 (6:40 am)
Aren't these 2 sensors different? I know there is a MAP (Manifold Absolute Pressure) sensor, but is that the same thing as a MAF (Mass Air Flow) sensor? I know the '03 MPV has a MAP sensor on it, b/c I've already priced the part at AutoZone, and it is expensive, over $300 just for the part! Also, the code that came up when they checked it specifically referenced the MAP sensor, but didn't say anything about the MAF sensor? What do you think? If you can send a picture (of both sensor locations, if you have them, or just the one if that's all you have), that would be most helpful. I'm an accountant, not a mechanic, so things like this are tricky for me!
#17 of 68 Re: MAP sensor location in 2003 MPV [hokiefan33]
Apr 25, 2006 (10:50 am)
In that case I am the one that's mistaken, sorry, I thought you would have been looking for the MAF, not the MAP. I don't know the about the MAP, sorry! Why don't you go to the dealership, have them show you the part in the pats department and then ask them where it goes, they should point it out to you under the hood.....
#18 of 68 Re: MAP sensor location in 2003 MPV [hokiefan33]
Apr 27, 2006 (9:43 am)
I think it will be easier if you listed the codes.
#19 of 68 Re: MAP sensor location in 2003 MPV [dtownfb]
May 01, 2006 (9:41 am)
You're right, that might help, here they are:
1) P0174 - "PCM determined fuel system for Bank 2 was too lean." Possible O2 sensor? I believe there are 4 of them, right and left before and after the converter.
2) P0401 - "PCM determined there is insufficient flow in the exhaust gas recirculation system." EGR valve?
3) P0106 - "PCM determined that input from the manifold absolute pressor sensor or the barometric pressure sensor has changed too much, without a corresponding change in engine operating conditions." Possible MAP sensor, and that this may actually be the cause of the other 2 codes, as well (i.e. fixing this one might fix all 3)? This has the highest cost for the part, at approx. $339.'
Any help, and location description/picture of MAP sensor location, would be GREATLY appreciated!