Ok, I just got my car back after three and a half month's of waiting. I had a new Mazda remanufactured motor put in. The way home was a crappy drive. It kept dying on me when I would put the car in neutral. And I still had all the mods in that are listed on my sig. Then I took all the mods off including replacing my RE Ameniyia ECU with the stock one except I kept the dp mp and catback on. So when I started it up the car idled at around 1k nice and steady. But after driving around for a few minutes it starts to idle very low, like below 500, and it would die again. Whats wrong? Is it sensors?
Nick

 

eeehh..... check the vaccum hose to ur map sensor...??? fpr??? i dunno check all ur vaccum lines

 

I just had new silicone vaccum lines put in not to long ago. But I'll have it checked out.
Nick

 

first, the mazda remans are crap. you never know how much life you're gonna get out of them. second, if mazda did the work, they very well could have screwed up some vacuum hoses, so make sure those are all in the right place. aslo, i would not run the stock ecu with the mp if i were u. i don't think this problem has to do with the ecu though.

 

yeah, know about the mp. It was running really bad though with the other ecu though. I had it done by a mazda dealer. I'm planning on taking it up there sometime to have them look at it.
Nick

 

Second of all your post is crap. Mazda remans aren't crap, people like you that don't know crap perpetuate a myth which every other person will repeat and make into fact.

As for the original problem, tinker with the idle with the stock ECU in and get it right. Make sure the stock ECU you are using isn't a recalled ECU (Mazda replaced many of them). The MP won't matter if you keep the boost below 10psi.

 

well, nice comeback there buddy. i happen to be getting my information from Cam of Pettit Racing. i think he knows a bit more than you do about rotaries and anyone in the rotary nation would take his opinion over yours. damn, why ya gotta be so hostile, then i wouldn't have to post this.

 

LOL, 6 posts and you are an engine expert.

Exactly how many Mazda remans crapped out on you, for that matter, do you even have a FD? Wise man say "keep your mouth shut and eyes open".

The symptom sounds like the water temp and fuel temp sensor plugs are reversed. The two plugs looks exactly the same and are close together, it's very easy to get them mixed up.

 

i have 6 posts because i'm usually on nopistons. and i do have an fd. 0 remans have powered my car because of EXPERT advice. and i usually refrain from posting on this forum because of people like you guys who think that the number of posts is some sort of sign of knowledge. since when do they have any corellation? all i was trying to do is pass the info on to the man with the question and you guys jump on me for having a different opinion than you? you guys try to make someone else look stupid just to make you look smart. what a *****, Trexthe3rd, pointing out my six posts to make a point.

 

just put a reman in my 93....damn original motor was crappy....because i crappily leaned it out!....just remember the fragile nature of these motors and the not so fragile nature of their owners, is the main reason they pop....mazdas remans all come out of rebuild with factory specs....the owners and installers are the weakest link.....

 

My reman is running fine...
I got it from Malloy Mazda. They have a good rep.
Not all remans are crap. It just depends on where you get it from.

 

That's not necessarily true any more. Yes, there was a time when the Mazda remans had serious problems. I don't think anyone knows what was going on, just shotty quality assurance.

However, over the last few years, the remans have been quite good. As with anything, some bad eggs still make their way out into the public, but far less than in the past. BTW, I have a reman, over 3 years on it so far.


As for Mazda doing the install? They are just a shop, like any other shop. They are only as good as the mechanics that work in the shop. That doesn't mean they don't know what they are doing, some shop do, some don't. However, he should take it back to whoever put the engine in if it's not running correctly. He paid for an install, he should take it back until they get it right.

 

I'm going to agree with a lot of the people here, and say that the remans aren't bad. I have one from Malloy, and the thing is solid. It pulls 19 in. of vacuum for over a year now.
Nice weather we're having in Boston Vudoodoodoo huh?
I also agree with Mahjik. Take it back to the person who did the install. It can't hurt, and if the motor was bad even before you put it in, the dealer that you got it from should have no problem exchanging it.

 

I was expecting rain. I came outside this morning to 1/2" of ice on my FD!!!

 

**** YOU SNOW!

I hate snow...omg...

where the hell is spring anyway?


j

PS..rotary reliability and racing...where i get my work done...has stopped using remans after having to warrantee the labor to tear them out and replace them so many times over the past few years. One of the last times i was over there they told me that they are finished dealing with the remans.

 

so it seems that some people have success with the remans while others don't. like i said, you never know how much life you're gonna get out of them. i think it all comes down to what happened to the parts before they were made into a reman. if they came from an overheated engine, then they are no good. but it's hard for a tech to notice that a rotor housing has deformed due to overheating when he mass produces these things. they don't pay much attention to detail like a rebuilder would. all they really do is replace the gasket set and apex seals. yes, some do last for a while, but for me personally, i just wouldnt take the chance of buying a bad engine.

 

Much better tone...

 

pretty much the same thing i said before. i guess i always have to explain why i have the opinion i do in order not to get my head bit off.

 

Hey guys, thanks for the help. I'm about to call the shop and let them know. I am running 7 pounds of boost, so I think its fine running the mp.
Nick

 

The remanufactured engines all come from the same place. Malloy doesn't get anything different than any other dealer. Some remanufactured engines are going to do better than others. Some people get lucky, some don't. Getting proper installation is the key. Maybe Malloy does a good job with that.

 

I've talked to 3 rotary rebuilders in person, and I've talked to people who've bought the motors from them. Funny, some of the best reputation rebuilders have unhappy customers. Every rebuilder out there has built a motor with a problem. Mazda is probably rebuilding more motors than anyone. That means if 3% of the motors are bad, Mazda will have the most failures. More people will report bad Mazda motors.

Funny that Pettit is one of the most expensive rebuilders, they don't like Mazda remans, they cuts into their profits.

I believe that the Mazda remans might not be the very best motors out there. I do believe that Mazda has a much bigger reputation to protect than Petit does. I believe that rebuilders tend to dis the competition, at least from the 3 rebuilders I've spoken with.

A few years ago PFS had an awesome reputation, now it's been soiled a little with the whole Gordon Monson thing.

It's business and it's competition.

 

I hear that Mazda Recycling caters to Malloy Mazda. They only get the best of the batch or something.
Well if my current motor blows, I'll rebuild it myself.

 

i seriously doubt that Cam would tell me that they are bad just to get my business when first, he already had my business, and second, he suggested that i find another engine instead of one of his to save me money. that showed me that he cares about what's best for the car, not that he's just tryin to take my money. and yes, he may be expensive, but he's the nearest good rotary mechanic to me and i'll pay any price to ensure that my 7 runs perfectly as it does now.

 

Do you really think Mazda has different grades of rebuilt engines? A,B.....etc.

So Malloy gets only grade "A" rebuilds, and Smith Mazda in the next city gets a lower grade???

Can you imagine the uproar if Smith Mazda found out that they were getting lower grade rebuilds??

No way. Mazda would never do that. It would ruin their reputation.

 

No, but Malloy only accepts the best stuff from them.