MPI tuning

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Jeph said:
OK, so which sensor/sensors would you point fingers at?

The ones you are splitting into or clamping. MAF, Coolant, AIT, and the O2's

DO you have any CEL's with description?

Can you tell me if you soldered wires?

If you leave any sensor, specially the O2, not clamped or not wired correctly, you will run into problems.

Also if you wired the MPI wrong, the car will work, but you will have issues like this.

New leaks on gaskets will also contribute to all these problems.
 
Sorry about the stupid question but I have a MP3 with a MSP swap but MP3 injectors will they hold 8-10psi? I have the new MPI that I will put in today????
 
jtmp3 said:
Sorry about the stupid question but I have a MP3 with a MSP swap but MP3 injectors will they hold 8-10psi? I have the new MPI that I will put in today????

The MSP has the same injectors, so as long as you have the MSP ECU, you should be fine. If you do have the MSP ECU, try to leave the purple turbo module wires disconnected and see if you get enough fuel. If you do, then leave them off so tuning will be a lil easier.
 
Oh yeah I have the factory MP3 ecu and injectors, I am going to install tonight or tomorrow, I have the supporting mods to do 8-9psi but will the new MPI support that much with stock injectors remember no secondaries.
 
Tim do you still have your MP3 ecu in your car? You sent me a map to use and said to adjust the TM a little but would the timing be the same?
 
YES, I still have the MP3 ECU and NO you will not have enough fuel for that much boost with the newer TM type. I would say 5-6psi MAX. Xtra injectors is, and always will be the best route to go with the MPI.....IMO!
 
What if I went with WRX injectors(cheaper)? Anyway, I will be running stock MSP boost right now with the 3" turbo back and FMIC, I was thinking of upping the boost later after the stock boost was tuned. HOw come if MP3's and MSP's have the same injectors and some MSP's can do 10psi and I can only do 6psi???
 
jtmp3 said:
What if I went with WRX injectors(cheaper)? Anyway, I will be running stock MSP boost right now with the 3" turbo back and FMIC, I was thinking of upping the boost later after the stock boost was tuned. HOw come if MP3's and MSP's have the same injectors and some MSP's can do 10psi and I can only do 6psi???

Their ECU is programmed for more fuel then ours. The TM adds a little more fuel for the non MSP's but not enough to compare to how rich the MSP already are.

If you put in larger injectors, then you would have to get with Nick on how to set up the MPI up, since I have never tuned larger ones. IMO, xtra injectors is much better with the MPI, since if you put in larger ones, you will have to get the right kind and then you will also be tuning them in batch mode like the Haltech, no more sequential firing.
 
OH I think I get it now, I just want it to be as fast as possible and be reliable, just like anyone else, maybe I'll trade it in for a Lambo when I get paid next week. lol.
 
for reliability, you cant beat extra injectors. You fire them when you want and how much you want in boost. Outside of boost, let the stock ecu take care of you.
 
MPNick said:
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

This is news to me. It's no surprise you still assume things and have no idea what you are talking about. How do you KNOW no cars came out of here running right? Seems our stuff makes alot of power for us not knowing what we are doing. How many units did I sell and personally install here??? 9 total installedl. Of that 9 only 3 had problems that Tim came and tried to fix.. 2 of them are still not running right even after BiggTim came and did his magic. Are you going to say he doesn't know what he's doing too?? If it wasn't for him you wouldn't have a Protege market. Hell we tune 1000whp turbo mustangs.
Your constant attemts to discredit only reflects your insecurities and lack of good character.

The SMT6 is a decent setup for a low boost application. It works great on some cars and not so great on others. This could be user error, sensor problems or the Unit itself. When Jeph's car left here(July 05) it ran GREAT.. it made 201 whp with stock exhaust and 6 psi. 3 months later it started acting up when the temp changed. When I bailed Jeph out at 2am and retuned his car, he can tell you just how well it ran.. Few days later it went South again. Since the stock ECU flip's maps this will affect your tune with the MPI and cause you to retune it. Here in AZ when I had the unit on my car I didn't have this problem much at all. Only when it went from 115 degrees to 50 degrees did I get issues.
 
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MPNick said:
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

Well, seeming how I drove Jeph's car from AZ to UT, I will give my opinion.

Beau tuned the car in PHOENIX, for Phoenix. It kicked ass from PHX to just before the Hoover Dam. As the altitude rose, the performance dropped. It dropped a lot. Jeph lives at about 4700 feet above sea level.

Of couse, the MPI doesn't accomodate for this.

Beau had me turn the switch way up on a higher point on the freeway. The A/F ratio was all over the place as I drove up. As I hit the gas, the A/F ratio would go wild and the car would buck and not drive smooth.

Don't blame it on Beau.

(I have seen him fix your products at his shop numerous times. It is no secret who is better out of you two.)

Don't tell people that Beau doesn't know how to tune. Hell, he personally makes the best kits on the market for Protege's. He knows how to tune said turbo kits.

Beau can tune 1000 Wheel Horse Power turbo Mustangs. He can also tune a 300 plus whp Protege'. Beau is obviously good enough for a magazine. See the December issue of Sport Compact Car.

201 hp on STOCK EXHAUST (and a Good Charlotte sticker on the back window) is what Jeph's car made.
 
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status50 said:
And another thread goes to s*** because of Vendor Vs Vendor trash talk.

No. MPI Nick starts s*** and Beau has a right to defend himself from someone discrediting him.

Nick, you sound like a jerk. If you want to market the MPI Tuner, then do so. It is a good product for someone who doesn't want to drop a ton of money on an AEM.

Don't bash Beau. It won't help you sell anything.
 
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65racecoupe said:
No. MPI Nick starts s*** and Beau has a right to defend himself from someone discrediting him.

Nick, you sound like a jerk. If you want to market the MPI Tuner, then do so. It is a good product for someone who doesn't want to drop a ton of money on an AEM.

Don't bash Beau. It won't help you sell anything.

Thanks, let see who is still here in a few months.
 
Hey nick can I have your # if I have any questions installing the MPI tonight? I have to have this thing running to drive to work tomorrw.
 
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