fuel cut

Hector Molina
25

Asked by Apr 15, 2009 at 10:40 PM about the Mazda MAZDASPEED Protege

Question type: Car Customization

Hey any one know how to take the fuel cut in the MSP?

11 Answers

Chase Sutherland
5,505

by fuel cut what exactly do you mean?

Hector Molina
25

well i have a fuel cut in my msp.. i can't increse the boost no more then 9 ps and

Ivan Aviles
65

Fuel Cut is when the ECU detects an abnormal increase of boost, usually anywhere from 10 and above the engine cuts your fuel to bring the psi down so no damage would be done to the engine. The best way to get rid of it is to buy a fuel-cut defender. Ebay search it or go to any perfomance shops and look for one, most cars that are stock turbo have it, mostly. Greddy has a fuel cut defender and JoeP makes em to. Google it if everything else fails.

1 out of 1 people think this is helpful.
Chase Sutherland
5,505

doesnt it do something similar when the turbo is too cold or something?

1 out of 1 people think this is helpful.
Ivan Aviles
65

No. Its all on the Psi. If you have an aftermarket intercooler and the air outside is really cold, more air is gonna go to the engine through the intake manifold, this raises your psi by a little usually like maybe one or 2, the ecu will detect this increase in air pressure and disengage the fuel line. Same effect but different circumstances. Its all in the amount of air pressure being calculated in the ecu.

Chase Sutherland
5,505

ah ok. i was curious because i live in wisconsin and my gfs msp would never get full boost in the winter time. it was all stock too. so i was jsut wondering what that was all about. car would only get to about 4k rpms until it would kick it back down

Ivan Aviles
65

Everytime the Fuel-Cut kicks in its like hitting a brick wall, the engine just stops its ridiculous and dangerous sometimes. I bought my fuel-cut. Its great. My MSP has about 229whp right now, dynoyed. I upgraded the turbo, intercooler, and Intake. Its a GT28RS. so far its only at 5 psi cause i had to change the wastegate and my MPC broke, I have an Electric one but i havent installed it yet. Check it out at the Photo Albums on the club.

Ivan Aviles
65

Btw the MSP ECU has a very bad habbit after about 4K RPM's the ecu would drench the engine with gasoline..literally drench it so that might also be a reason and also its normal for the psi to go down after 4K because of this reason, i lived in Jersey and happened to me all the time when it was stock, because the wastegate is internal its not as strong as the external ones, thats why the psi would go up then down again.

Carl Franzene
25

don't overboost, or get an SSAFC and bigger injectors.

Carl Franzene
25

nothing to do with RPM, it just runs a very conservative tune any time you're in boost. rich = safe.

jeremyr69
0

my car runs lean wen i rev it or drive then start to come to a stop i neeeed help

Your Answer

Add photo

Related Questions

  • how do i remove the false fog light from my 2011 mazda mx 5 7 answers

    There are plastic fake ones there with the directionals on the side of them. HOw do I remove the plastic ones without having to cut them out?

    2011 Mazda MX-5 Miata Sport

    -

    Car Customization

  • 93 Miata Stalls 5 answers

    I have a 93 Miata with a Jackson Racing Super Charger currently I am experiencing an intermittent stalling problem. Car will stall when coming to a stop, down shifting to turn and also stalls when go...

    1993 Mazda MX-5 Miata

    -

    Car Customization

  • Flamethrower Kit Emergency on EIC Mazda 3 8 answers

    If anyone knows how to install a flamethrower kit on a Mazda3, please let me know at kfranklin50@yahoo.com. Im not getting any flames

    Mazda MAZDA3

    -

    Car Customization

  • Should the security dash lights blink continuosly when the car is turned off on the 2012 Mazda 5? 8 answers

    The doube lock secuity light blinks continuously on the dashboard when the car is turned off on my Mazda 5. Is this normal?

    2012 Mazda MAZDA5 Sport

    -

    Car Customization

  • engine cuts out 2 answers

    Runs okay upto about 40 mph then it cuts out. What's going on? Thanks

    1991 Mazda B-Series Pickup

    -

    Maintenance & Repair

MAZDASPEED Protege
Looking for a Used MAZDASPEED Protege in your area?
CarGurus has 24 nationwide MAZDASPEED Protege listings starting at $3,250.
ZIP:

Search Mazda MAZDASPEED Protege Questions

Mazda MAZDASPEED Protege Experts

#1 Erik Buendia
Erik Buendia
Reputation 40
#2 FordNut
FordNut
Reputation 20
#3 Ivan Aviles
Ivan Aviles
Reputation 10
View All

Related Models For Sale

Used Mazda MAZDASPEED3"
13 Great Deals out of 440 listings starting at $6,995
Used Mazda Protege"
468 listings
Used Mazda MAZDA3"
287 Great Deals out of 30,655 listings starting at $650
Used Honda Civic"
475 Great Deals out of 58,876 listings starting at $1,500
Used Mazda Protege5"
171 listings
Used Mazda MAZDASPEED6"
60 listings starting at $4,450
Used Acura RSX"
13 Great Deals out of 614 listings starting at $2,250
Used Mazda MAZDASPEED MX-5 Miata"
18 listings starting at $6,736
Used Mazda RX-8"
20 Great Deals out of 576 listings starting at $990
Used Subaru Impreza WRX STi"
21 Great Deals out of 623 listings starting at $9,000
Used Subaru Impreza WRX"
47 Great Deals out of 1,087 listings starting at $3,900
Used Mitsubishi Lancer Evolution"
18 Great Deals out of 1,620 listings starting at $12,000
Used Nissan Sentra"
485 Great Deals out of 44,561 listings starting at $1,950
Used Mazda MAZDA6"
203 Great Deals out of 17,967 listings starting at $1,300
Used Dodge Neon SRT-4"
4 Great Deals out of 66 listings starting at $3,950