Ernie - see below for my answers (underlined)
Okay, then it's probably not just perception. Let's break this down:
Initial Visit/Complaint
1) Did they test drive the vehicle?
Correct vehicle troubleshooting is a tech rides with you one-way . . . so you can show him when it happens (he may or may not feel it), then he drives back to see if he can replicate the issue.
Tech drove it once, said he could not find it, then I drove it with him and he admits feeling it but feels that it's normal function/with in specs.
2) Did they only check what you asked them to?
Sounds like you made a logical deduction, but depending on the dealer, they should check what you ask them to, and if they find nothing, come up with some ideas on their own.
They didn't check anything related to this yet to my knowledge because they seem to think it's normal. Thats' what I'm pushing them & mazda to do. I heard about the gas pedal replacement idea from someone on a Mazda Forum who experienced the same or similar thing.
Dealer Competence/Accommodation
Has this dealer given you the benefit of the doubt and been obliging about these concerns? If not, find another dealer, at least for this problem. They may have either not been bright enough to come up with their own idea as to what the problem is . . . or if (see next part) they won't let you try other avenues of testing out, another dealer may.
I bought car at dealer out of state( local ones did not have this model left on lots) but I'm having this researched at local dealer. They have been someone accomodating but honestly, dealer can't authorized warranty work unless Corp Mazda does and sometimes I'm the ping pong ball in the middle.
Debugging and Troubleshooting
1) Test Drive Another M6 with the same setup. - Am going to try this.
2) Find a local M6 owner to test drive your car and see if there's a difference.
(actually guy on my hockey team has a new one (touring with 4cly manual) & I'm going to ask him if I can do this.
3) Test drive a new 2.5 M3 with M/T and see if it does the same thing
I find it hard to believe that this is just you not being used to drive-by-wire (this was my first dbw throttle and I had no problem being adjusted).
As to what the problem actually is - this car is crazy computerized, it could be lots of things . . . the drive-by-wire doesn't sound like the only possibility to me . . .
Have you done anything even seemingly minor to the air flow? (Different air box, etc.) I've read a lot of people trying to tinker with these new engines getting CELs and weird stuff for any sort of minor 'performance boost' . . . seems like they're programmed to reject modding.
No mods to the car. I plan to keep it til it drops & won't modify anything (except maybe after warranty is up)
Let me know if you can think of anything else that might help me. I've sent an email to dealer and Corp Mazda Cust. Srvce rep offering to have local Corp Mazda rep drive car with me.
Also it was suggested that I check how car does under cruise control as a test since if it's fine then, that further suggests pedal/DBW sensor issue as cruise control does not deal with pedal inputs.
Let us know how it turns out either way.
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