MPI tuning

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Mental Addiction said:
What is wrong with the tuner?

Nothing is wrong when put into a vehicle that has no issues, wiring that is done correctly, and a tune that works for the driver (thumb)
 
Jeph said:
It went bad when i had my header before i went turbo.

So you installed the MPI Tuner in a car that has known problems. Now you have a CEL and the car does not run right all of the time. This sounds like 10 other people at one time or another on this forum. You need to get real advice from people who know what they are talking about. How in the hell is any OBDII car going to run right if you have a known bad sensor?
 
The 2nd O2 sensor has NO affect on how the car runs, it is there tot make sure that the cat is working correctly.
This is what i'm talking about, instead of providing useful HELPFUL information, you come in and tell me its MY fault that it doesn't work, and basically i'm s*** out of luck. Help me fix it, don't flame me for having a bad sensor, or blame it on wiring i know is right. First it was my wiring, "it must not be soldered up right" then its my second O2, what next?
 
Jeph said:
The 2nd O2 sensor has NO affect on how the car runs, it is there tot make sure that the cat is working correctly.
This is what i'm talking about, instead of providing useful HELPFUL information, you come in and tell me its MY fault that it doesn't work, and basically i'm s*** out of luck. Help me fix it, don't flame me for having a bad sensor, or blame it on wiring i know is right. First it was my wiring, "it must not be soldered up right" then its my second O2, what next?

Who told you this? The 2nd O2 will cause you problems. How to some of you guys fix cars. You have a cel. An OBD-II car will nevber run right with a CEL.

I ask you to check the wires. I see this all day long. People call me or e-mail with the car not running right. I start from the top. Bad wiring, air leaks, bad grounds, bad O2s, MAF installed backwards.

The MPI will never fix a broke car. You will still have a cel if you removed the MPI. This means that you need to fix your car. You can soend $1,500.00 on a AEM system but you will not $1.00 to fix you car first. That does not sound to smart to me.

If you want real help in fixing your car, you have better start with the known problems first. Work the problems do not ignore them because you are being told that it does not matter.
 
We can't rule out it being my fault yet. I got in the TM and changed things to make it less aggressive, so I could have potentially did something wrong. That's why I had you set the map up like you did and turned the switch OFF. So with it running on that map, unchanged I hope, how has it been driving non-boost? If you get codes, what codes are they?

If you are driving fine, then turn the switch back on and tune the boost rich and see what happens. If it starts to mess up again, then it could be somehting I did, which you would need to send the TM back to me and I'll fix it.

After talking to Beau though, it doesn't seem you want to continue with the MPI and you just want to go to the AEM. He said he was going up there to install it. So before you do anything, you need to finger out what you are going to do so you don't wast your, or anyone elses, time.(thumb)

It can be a number of things, but you can't listen to people who have never been able to tune these things right. Don't let people lie to you about the MPI when they don't know what they are talking about. I know it's hard to hear how Nick talks, but that's just the kind of guy he is. I am trying to help you, but I can only help as long as you want the help. Make your decision and then you can make some progress. If you go to the AEM, then that's cool, it's your car and no one can tell you to do something you don't want to do.
 
Man i feel real sorry for some of these guys. Car has ran great since day one with the Mpi . And it is so much fun to drive, I have prove to myself this little pencil di&& rod car can take a beating . Its all in the tune and its sad that so many people cant get it right . (hah) No pun inteded. Nick you still the man . DAM YANKEE . Hey i married one i know when the f/// to shut up.
 
MPNick said:
So you installed the MPI Tuner in a car that has known problems. Now you have a CEL and the car does not run right all of the time. This sounds like 10 other people at one time or another on this forum. You need to get real advice from people who know what they are talking about. How in the hell is any OBDII car going to run right if you have a known bad sensor?

It can't. Bad O2's on stock car = issues.
 
LinuxRacr said:
It can't. Bad O2's on stock car = issues.

I do not understand how he is being helped by a tuner who does not think that a bad O2 would not cause a problem. How many times must we go down this very same path with the MPI. The car needs to be in 100% good working order before you can start tuning the car. I does not matter if it is the MPI or Joe Bobs tuning Box. It also make me wonder what other problem the car may have.

You should get together with Big Tim and let him find the problem and or problems. He can then fix and tune you car right. I lost count on how many cars he has fixed that came out of the shop you are dealing with. Or you can just remove the stock OEM wires and install a standlone. This is one way of not having to fix your car.
 
Ok, everyone knows you have s*** with Beau, you don't have to imply it here in my thread. How can you POSSIBLY say i'm not willing to spend money to get my car running right. I've spent alot of money to make sure things weren't done half-ass, and when it runs like s*** even after that, waht am i supposed to think? "Oh you have a vac leak, you didn't tune it right, you don't know how to tune, the "shop" you're dealing with doesn't know what they are talking about. Get off your high horse and admit that maybe the MPI isn't for everyone, and its still only as god as the stock ecu lets it be.
 
Jeph said:
Ok, everyone knows you have s*** with Beau, you don't have to imply it here in my thread. How can you POSSIBLY say i'm not willing to spend money to get my car running right. I've spent alot of money to make sure things weren't done half-ass, and when it runs like s*** even after that, waht am i supposed to think? "Oh you have a vac leak, you didn't tune it right, you don't know how to tune, the "shop" you're dealing with doesn't know what they are talking about. Get off your high horse and admit that maybe the MPI isn't for everyone, and its still only as god as the stock ecu lets it be.

So what's the verdict on the issue with the way we set it up with no switches coming on and driving non boost only? Any CEL's or the funky issue happening again?
 
Jeph said:
Get off your high horse and admit that maybe the MPI isn't for everyone, .

I amy have been a little harsh. You are 100% right. It is not for eveyone. It is best use when it is installed on cars without any problems on it. If you are going to use an MPI it needs to be installed on a good running car, that does not have any cels. You are not scared at throwing money at it. You are going to spend around $2,000.00 installing the standalone so you can remove the problem. This way you do not have to fix your car. It is your money spend it as you see fit.
 
Jeph said:
Ok, everyone knows you have s*** with Beau, you don't have to imply it here in my thread. .

The fact is that he as never been able to get the MPI running right in any car he tried. Big tim had to take over and fix the cars in they needed to be and then tune them right. This is a fact, where do you have the problem? You need to get with someone who can fix your car and knows how to tune with the MPI if you want it to run right.(deadhorse
 
We had it running right. He was up here in utah, and we had the buck completely tuned out, it idled great, and then a few days later it was crazy rich in spots, lean in others, and there was no real change in ambient temps, or anything.
 
Jeph said:
We had it running right. He was up here in utah, and we had the buck completely tuned out, it idled great, and then a few days later it was crazy rich in spots, lean in others, and there was no real change in ambient temps, or anything.

Wiring issues....
 
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