What is the Max HP that my Mazdaspeed can put out?

is the microtech tapped into the stock harness or does it have its own harness? maybe he is just tapping into stock harness to control alt with microtech. what role does the stock ecu have right now? any reason you cant just unplug it?
 
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FYI the stock ecu does not control anything on the stock gauge cluster aside from the check engine light.

speedo is controlled by ABS sensor signal
temp gauge is controlled by temp sensor signal
rpm is just a tach rigged to ignitor ground signal
the ecu does not need to be present for any of them to work.

but let me see if i understand this microtech setup he has, maybe i am way off and it is just a piggyback or something? does the stock ecu even know the car is running? because if it doesnt know it is running, why would it activate the alternator?

and if he is using the stock ecu to control the alternator, why would he tap the harness at the alternator?

im guessing he tried to use microtech to control alternator? why else would he have tapped it.

im thinking op should see if microtech can control alternator and cooling fans with outputs from microtech. ditch the stock ecu its not needed IMO if the microtech can output the required signals to control alt/fans.
 
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FYI the stock ecu does not control anything on the stock gauge cluster aside from the check engine light.

speedo is controlled by ABS sensor signal
temp gauge is controlled by temp sensor signal
rpm is just a tach rigged to ignitor ground signal
the ecu does not need to be present for any of them to work.

but let me see if i understand this microtech setup he has, maybe i am way off and it is just a piggyback or something? does the stock ecu even know the car is running? because if it doesnt know it is running, why would it activate the alternator?

and if he is using the stock ecu to control the alternator, why would he tap the harness at the alternator?

im guessing he tried to use microtech to control alternator? why else would he have tapped it.

im thinking op should see if microtech can control alternator and cooling fans with outputs from microtech. ditch the stock ecu its not needed IMO if the microtech can output the required signals to control alt/fans.

The stock cluster is connected ONLY to the stock ECU on the 2002 - 2003.5 3rd generation ABS equipped proteges..

All sensors are fed into the stock ECU and a signal is sent to a microprocessor in the cluster which displays the information.

No ECU = No Cluster

(Which is why I am running an IQ3)
 
i have no ecu in my car and my gauges all work except check engine. this is what i was mentioning in your TOPro thread. the ecu does nothing but trigger check engine light on the stock cluster. as long as the stock harness remains everything works.

this is why yours didnt work, you pulled the stock harness. he still has his harness.
 
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i have no ecu in my car and my gauges all work except check engine. this is what i was mentioning in your TOPro thread. the ecu does nothing but trigger check engine light on the stock cluster. as long as the stock harness remains everything works.

this is why yours didnt work, you pulled the stock harness. he still has his harness.

I've wondered this since looking at the wiring diagram all the sensors seem to be wired directly to the instrument cluster microcontroller. There are of course signals between the microcontroller and the ECU, so I was taking everyone's word that the gauge cluster would be DOA without the PCM.

I still pan on running parallel when the MS is up and running, but this is good to know.
 
Happy 4th of July all. I have recently found out some bad news. As you all have read in my past post I have been trying to get my Mazdaspeed up and running. Well everything got bolted up right and the alternator issue was taken care of. The issue now that my mechanic is having is that the engines compression in cyl. 2 is low (60 psi), all the other are good (130 psi) and smoke seems to be coming from the valve cover. Man this is really testing my nerves. I am trying to not give up on this build but man it really getting close. The mechanic thinks it could be a broken ring Lang or a bent piston, but he told me that he would not know till he removes that head and checks the rods and all. Man I hoping that it will be not that bad. Money is really getting tight. Do you all have any info on this matter; has this happened to anybody before? Is it worth keeping the car? Don’t get me wrong, I would like to keep it but the money is really the issue. Please if you all can help that would be great.
 
130 seems kinda low to me isn't it supposed to be 170? I guess low cr pistons could do that. If its smoking from the motor it sounds more like a head gasket
 
Get rid of that car. The cheap turbo replacement should have been the first warning sign. If he ran enough boost poorly enough to loose a turbo and ruin a built engine, then the transmission can't be far behind.

If the car is in good shape cosmetically, hopefully someone on here who can do his own engine work can salvage it, but just paying someone to fix problem after problem is a massive waste of money.

A blown built engine is just as worthless as a blown stock engine. Hindsight is 20/20, but it's advisable to have a compression test done before buying a used car.
 
You all are probably right when you all say that I should part the car out. I have decided to keep the car and have the mechanic rebuild the car. I am still in the positive side when it comes to the amount spent on the car. I had bought the car for less than $3500. With all the stuff that the car has I would end up really making a mistake by getting rid of it. The car has a wideband, double din cd player, sub, coil over’s, upgraded radiator and some really good upgraded parts on the engine that can be salvaged. Oh also the Trans has that LSD upgrade. I will stick to the car and make it a reliable car, I know that I will still have to fix things here and there but I am willing to deal with it. I really have a great mechanic that know his stuff, this dude is so great that he has people from out of state bring him there cars. I will keep people posted.
 
You should have walked away when you saw a car with$15k worth of work with reciepts being sold for less than a stock msp goes for
 
You all are probably right when you all say that I should part the car out. I have decided to keep the car and have the mechanic rebuild the car. I am still in the positive side when it comes to the amount spent on the car. I had bought the car for less than $3500. With all the stuff that the car has I would end up really making a mistake by getting rid of it. The car has a wideband, double din cd player, sub, coil overs, upgraded radiator and some really good upgraded parts on the engine that can be salvaged. Oh also the Trans has that LSD upgrade. I will stick to the car and make it a reliable car, I know that I will still have to fix things here and there but I am willing to deal with it. I really have a great mechanic that know his stuff, this dude is so great that he has people from out of state bring him there cars. I will keep people posted.

You are not on the positive side and never will be. You bought the car for $3500, so that is how much it is worth. If you get it running properly and everything is in tip top shape cosmetically and mechanically, you might be able to get six or seven for it. There is no way you are getting that car running well for that ~$3k difference so you will inevitably end up with a net loss on the car.

Now if you part it out, there is definitely $3500 to be found in that car, plus you can sell the remainder for a bit too and come out ahead. You could probably end up a couple grand on the plus side, but it will take some work. If you are really industrious, you could return the car to stock with a used FS motor and sell it as a running good condition stock car for $5k, but you'll be playing a numbers game and finding parts and swapping them out will be a full time job.

If you continue down the road you are on, with someone else doing this work for you, you will spend many thousands, and you may end up with a very fast MSP, but it will be worth no more than six or seven grand. Mods that can be removed and resold are one thing, but labor cannot be resold. Every dollar spent is gone forever. Just ask the guy who sold you the car.

I would love for more people to come over and keep the Protege platform alive, more people like Maxx_Mazda and Brian_MP5T who have the expendable income and personal fortitude to make the car something truly incredible. But if you actually add up what they've spent plus the blood, sweat, tears, and ingenuity, there would be very few people out there willing to make those sacrifices for their Protege.

You have to treat it like an expensive hobby, and you are not just paying for parts, but for the personal satisfaction of creating something special. It should also not be your only car, because things are going to take longer than expected to get done correctly and other things are just going to break.

If that sounds like something you can handle, then the more the merrier.
 
Man thanks all for the great replies, I am planning to go forth with the build. I really do see all your points, but I am in need of a four door car for me family. I really dont just want to own a regular car, I do want a toy. When I first saw the car, I fell in love with the look. I see what you all mean about the soul of the car. Its really a nice car and would not mind fixing it up. I willing spend the money to fix it as long as it does not go past the amount of low trade in value. The low trade in value is 6k according to KBB and Nada. The mechanic I talked to said that it should be around 3k to rebuild, or maybe less. I am keeping my fingers crossed. I figure with all the stuff that the guy had purchased before and added to the car I will be in the positive side. I hope that the transmission is good though, but we will see. If the transmission goes out and I fix that then I will have a good running car as long as the turbo and wideband work. Once again guys thanks and I am looking forward to more conversations.



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