shazy

That's dumb. They shouldn't charge you for something like this, go to another dealer and ask them about the price.

ms70616

getting PCM replaced on Tusday

secret8gent

huh... if you do the diagnostic for the cluster, what happens for the tach test? #13

https://www.rx8club.com/showpost.php...00&postcount=1

i'd be surprised if it was your pcm

--

edit: i just did it and on my unit, before the test kicks off it is at zero rpms, then past 10k rpm to the 3 o'clock position, then holds steady on 3k rpms, does yours park at these values?

ms70616

hmm interesting, i went and did the test and mine settles at about 26-2700. im gonna mention that to the dealer tomorrow because im not paying for a pcm if it will not fix the problem.

teknics

lol, your cluster is reading 300-400 lower and they dont have a clue how to test it. Bring in that forum topic with the output test and hand it to them and ask them to do the tach test.

**** it get a pcm, then when it doesnt fix it get a refund and a free cluster.

kevin.

ms70616

thats what im thinking, since they putting me through all of this crap let them put in a pcm and then not pay for it cause it did not fix the problem and get a new cluster.

ms70616

ok so i went to the dealership today to get the PCM installed and well it seems that the new PCM will not communicate with my car at all. They said that they installed it but it would not communicate with anything in the car and that the PCM that is currently in my car is not the one that should be in there. No clue how my car is running at all if it is not the right PCM nor do i understand why the new PCM that is supposed to be in there wont work. Mazda has no clue what is going on, the tech called mazda and they have no idea either. So this question should keep some of you guys busy thinking for a bit.

secret8gent

if your car is still running (did they put back your old pcm?)
run away as fast as you can~

ms70616

yea they put the old one back in, but whats goin on with my car haha

teknics

did they properly transfer data from the old PCM to the new one? (PMI/Programmable Module Installation) if not they will need to get the As-Built info from Mazda and force the PCM into programming mode with that.

If you are 1st owner of car and never swapped ECU's, then im guessing they're full of ****.

bad dealer FTL.

kevin.

ms70616

well i was there for 3 hours and they said they tried it a couple of times but they could never get the PCM to communicate with anything else in the car. I am not the original owner of the car i am the third. i bought it from an individual that had it for about 2 weeks then broke his foot so he couldnt drive it so he sold it and he bought it from the original owner. I have been trying to find out who the original owner is so i can talk to them and ask about it but i cant find out who it is. Mazda looked it up in their files but wouldnt tell me

teknics

did they do the tach test and see that the cluster is bad yet? show them that then you can skip the whole PCM fiasco.

kevin.

ms70616

will do, ill go by there tomorrow and get them to do it. But what do you make of the PCM not being the right one?? i mean the car is running overall right and good but if the PCM is not what is supposed to be in there then the car should not be running right at all, right?? Man i wish your dealership was close by and id just drive the thing to you.

Juice

iTrader: (1)

You should really just print out that post on diagnosing the tachometer. Then go buy a stapler. Now here is the tricky part, staple the diagnostic info to the techs head.

I say that is the tricky part because you'll have a hard time finding his head as it is deep within his ***.


In all seriousness though. Your car wouldn't run if the PCM wasn't right. There are alot of things that tie into it, including the immobilizer. If the PCM isn't correctly programmed, then your car wouldn't start. I also believe that the PCM for all the manual transmission cars from 2004-2008 are the same, the differences are the programming.

Since they replaced your PCM with a new one, and the car won't start, it sounds like it is incorrectly programmed. They are just giving you some BS about your PCM being wrong because they are too stubborn to admit to you, or maybe even themselves, that they have no idea what they are doing.

secret8gent

~don't think that is true. (3 types for MT in US [2004, 2005, 2006-8] if i remember correctly, see elsewhere on the forum)

ms70616

pics of pcm