mysterious power drop off...

[Chris_azn_msp03]

... so i'm at a light, it turns green. i take off mildly fast and i get to about 4500 rpm and my power drops off like my gas just cut out. what could be the prob... maybe the ecu isn't mapping the fuel right???? i have no clue... a lil help please? .... oh did i mention i just bought the mazda speed prot and i know nothing about mazda... yeah just thought i'd throw that in there. thanks for the help...

[Hellnightkid]

Fuel Cut possibly...

[boostisgood]

Hello and welcome to the forums. :D

Anyways, do you have any mods on the car right now? Do you have the boost turned up?

When you say cuts out, does it feel like you hit a wall for a brief second ?

[BlkZoomZoom]

It's normal. If the true power of the car was released you would break your neck.

[Chris_azn_msp03]

yes i do but just a greddy exhaust and injen intake and the boost isn't turned up. i don't even know what the factory set boost is. It cuts out and regains power shortly after. And yes it's exactly how you say... hit a wall for a brief sec.


Hello and welcome to the forums. :D

Anyways, do you have any mods on the car right now? Do you have the boost turned up?

When you say cuts out, does it feel like you hit a wall for a brief second ?

[Chris_azn_msp03]

yes i do but just a greddy exhaust and injen intake and the boost isn't turned up. i don't even know what the factory set boost is. It cuts out and regains power shortly after. And yes it's exactly how you say... hit a wall for a brief sec.

[BlkZoomZoom]

Sounds like fuel cut. The car is saving itself.

[Chris_azn_msp03]

so what fixes the prob.?

[evilmonkeyMSP]

you dont really want to "fix" it .Its cutting fuel so you dont pop your motor

[Chris_azn_msp03]

if it's saving itself why does it just pause and regain power? i don't even let off the gas and it just continues where it left off (power wise).

[Fede_italiano]

... so i'm at a light, it turns green. i take off mildly fast and i get to about 4500 rpm and my power drops off like my gas just cut out. what could be the prob... maybe the ecu isn't mapping the fuel right???? i have no clue... a lil help please? .... oh did i mention i just bought the mazda speed prot and i know nothing about mazda... yeah just thought i'd throw that in there. thanks for the help...
Where are you located?

If it does all the times it might be hesitation.
Otherwise fuel cut.

[jeffmsp]

your CAI is probobly making it happen at warmer temps than the factory intended to hit fuel cut. Fuel cut is there to save your motor from damage. Get a JoeP Fuel Cut Denser and run your car with a WB AFR gauge to make sure you are not detonating, or get a DSM AFC, or just take off your intake and see if that helps.

[CrashAdamP]

hey whats going on with ur car sounds like what has been happening to mo my car. i took it to my dealer and the told me that there was service bulletin out on the wastgate.

[Tommy1005]

just wondering if they will do the service bulletins if the car is out of warranty....anybody know?

[jeffmsp]

have you put a boost gauge on the car to confirm that your wastegate is malfunctioning?

[PlatinumMSP]

i think your describing hesitation man, get the flash and your problems will be solved

[evilmonkeyMSP]

dont lie to him now (boom07)




i think your describing hesitation man, get the flash and your problems will be solved

[PlatinumMSP]

dont lie to him now (boom07)

what do you mean man? before my car was flashed i had a drop in power from the 3700-4800 range and then the turbo would kick in like crazy from 5500 to 6500, now with the flash i have smooth power all through all the rpms

[evilmonkeyMSP]

it doesnt completely rid the car of hesitation

[PlatinumMSP]

yeah but it gets rid of the majority of it, I added an Injen CAI and it smoothed it out even more, i bet with an exhaust the hesitation will be almost non-existant

[evilmonkeyMSP]

eh, I still have some hesitation w/ my exhaust...we'll see once I get the FMIC & relocate the MAF

[Ryoga28]

Get a fuel cut elim from joe P if you really dislike the fuel cut, but don't complain if/when your engine pops.