Cuting out at 5000rpm 0 degrees

[luke 3mps]

Got a interesting one for you's all!!!! went to over take a car in 3 got to 5000rpm and started to cut out bad so i slowed down again start at 2500rpm push the throttle and it done it again at 5000rpm.... the temp outside was 0-1 degree, only time it as been that cold. got in the car this afternoon temp 16ish degrees and it was fine never done it!! it was fuel cut, could have been electical breaking down. i have felt it before on my older cars when they broke down.. any thoughts?

[2XS]

Has the car been tuned since the turbo upgrade?

What boost are you running?

Cold air is denser and may be causing a boost related issue.

Mine has a cut from overboost on very cold mornings. I have a dual stage boost controller now set at 1psi less for cold days.

[luke 3mps]

Boost standard. and standard tune. i was thinking the same, or maybe the denser air upsetting air/fuel ratios?

[Doc]

search cold weather cut on mazdaspeedforums.org

lots of info there

[2XS]

The boost may be std, but the bigger internals in the huffer can cause issues.

goodluck

[bd581]

Have you changed the spark plugs recently?
Or checked the plug gaps?

My old GTi-R had a simular problem to what you describe, and it turned out to be incorrect plug gaps.
It would splutter and miss at 5000rpm, but then go as per normal from 6000rpm onwards

[240MPS]

Luke you seem to have some sort of issues as mine, went on a Opel cruise on the 2nd of Jan this year in 2 and 3rd at 5500ish cutout like nothing and backed off and fine, then at bathurst nice crispy morning by myself country street flick it to 18psi to get a feel of it 1st to 2nd and in 3rd i decided to wind it hard and hit 5500rpm and i nearly went through the windscreen and popped 3 ribs and sore for a week and it happen coming down conrod straight at a slow speed and did it again in 4th at $1.60 with a sudden stop had the family in the car, boys checked it when i got back and the gadget picked up that it had some boost cuts / spikes ( protection mode ) Is this the same thing your having... They tuned it differently and it hasn't happen again....

[luke 3mps]

..... cant wait to send it for a tune..hurry up 4 weeks lol............ it think it is the same problem as your having. anyways tune soon!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! woot

[luke 3mps]

Ladies and gentle man! been to mazda for a service they said this problem is the injectors leaning out. after the service its doing it a lot more now happend all teh way home tonight 17 degrees .. 3-4 gear.. thinking it is the fuel pump cutting fuel at 5000rpm boost,torque cut...?

---------- Post added at 07:26 PM ---------- Previous post was at 06:14 PM ----------

if you are doing anything more than tbe,intake........ YOU WILL NEED A TUNE!!!!! this is my experence!!!!!mazda restrict this s#&@ out of the mps... and keep it safe for those who neglect there cars!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!

[Cton]

So does this mean your gonna need something like the CPE pump before your upcoming tune?