bajaboy169

I have a 2004 miata turbo at 2700 and above it just sputters I replace both coil packs (nothing). If I punch it it just sputters. Ay clue what it could be i'm losing my mind and am almost broke Please help.
Thank you for your time and knoledge in advance.

Erat

iTrader: (5)

You should probably list modifications if any.

You're not really giving us much to go on here.

bajaboy169

no mods straight stock

Erat

iTrader: (5)

No codes?

bajaboy169

Code was for coil pacs I replaced them both

BoVice

Is it a stock with an aftermarket/DIY turbo kit or is it a Mazdaspeed?
1. Have you done anything other then replace the coils? Pull your plugs and inspect them, check the gap and make sure they're not the root of the problem.
2. Have you checked for any vacuum leaks or boost leaks? If it's only happening when in boost these are the things you should first explore.
3. Check your wiring harness for melted or exposed wire, also make sure the wires going into the connecters are not loose and are in decent shape.

bajaboy169

yes it's a mazda speed factory turbo. I will check this stuff in the daylight tomorrow morning and get back with ya. Thanks for the help I hope is some thing easy to find and fix

bajaboy169

how do you check for leaks?

Erat

iTrader: (5)

Start the car. Use your ears and your eyes.

If you suspect something is leaking spray a little starting fluid in that area. RPM's go up, then shes sucking in air from somewhere its not supposed to.

Aricjm15

Did you check the plugs and wires?
It probably has a leak in the intake piping

bajaboy169

Looking for the leak now Thanks

BoVice

How many miles are on the car? Is service up to date? Pull the plugs and check them! A spark plugs condition can help diagnose the issue. This thread should be placed in engine performance, that sub forum will be more helpful in diagnosing the issue.

bajaboy169

Ok great news! no leaks had a young tuner move in down the street he came over and started messing with it. Turns out my map sensor is clicking he said that it might be the reason the turbo isn't kicking in. Is he right? I don't have a clue either way. Need some input before I spend any money on this Thanks.

Aricjm15

99% certain he has no clue what he is talking about.
Are you sure the code was for the coils and not for a multiple cylinder missfire? Replace the plugs and triple check any hose/vacuum line on the car. The mass air sensor does all the work and the Map sensor on these cars is mostly for emissions and has little to do with the way the car actually runs.
Make sure to gap the plugs around .032 or less.

Erat

iTrader: (5)

There is a way of diagnosing this problem without spending any money.

This includes not listening to the little kid down the street.

But don't let me tell you what to do.

bajaboy169

I am going to check the gaps tomorrow if they are good Aric, Dillon please tell me more.

Erat

iTrader: (5)

Mileage on the car? Have you done any tune up stuff? Did this all of a sudden one day happen, or has it been getting worse.

I don't know much about 04's and MSM's but with it being completely stock i feel it's something that needs regular replacement / fixing. Something simple.

bajaboy169

Mileage is 106000 had a tune up about 7 months ago the symptoms started about 1 month ago, it starting getting worse and worse to where it is now.

Erat

iTrader: (5)

Fuel filter?

BoVice

I take I that you haven't pulled the plugs or checked any of the wires like myself and others have recommended. Young and tuner are A very scary combo, I'm only 25 and I'm still considered young by my mentor and peers who have built some insane street and track cars. Don't forget the simple things when diagnosing an issue. Ecu's can throw codes that may not be the issue! Keep in mind that the spark plug will show if you're running lean or rich, a plug will tell you more then you think it can. If you're on a forum and you don't want to check the basics then I highly recommend you take it to a competent shop.