Fuel Cut
- Thread starter Conso
- Start date
No one has solid proof that you need a new cdfp to solve your sputter issues. just wait until a reflash is available. Its just so early no one really knows.
I just upgraded to colder plugs and ran a .25 gap instead of .28- .30 like the factory plugs and now i cant get my car sputter even colder temps with 18-19 psi of boost, Go figure. You can temporarily band aid the real issue with map clamps and s*** or just be patient until a reflash is available.
I just upgraded to colder plugs and ran a .25 gap instead of .28- .30 like the factory plugs and now i cant get my car sputter even colder temps with 18-19 psi of boost, Go figure. You can temporarily band aid the real issue with map clamps and s*** or just be patient until a reflash is available.
I guess if you are happy with lower power levels listen to Nig, but if you wanna go fast take some of the above advice. Me and laloosh are probably two of the fastest ms3s in the nation and both found the cdfp to be the key factor. I guess thats not hard enough proof for some like NIGLET!
CDFP is key. My pump in boost.... where it worked fine, made the car a different animal. This is the single most important mod you can have, IMO. It makes power up top, holds boost higher, and helps solve fuel cut.
At least those were my findings. Ive had it on and off more than anybody else and the differences are stunning. Lets not forget Lalooshs car. He went from mid 13's to the 12.9 run with the install. It was simply night and day.
At least those were my findings. Ive had it on and off more than anybody else and the differences are stunning. Lets not forget Lalooshs car. He went from mid 13's to the 12.9 run with the install. It was simply night and day.
udontknowjack
Member
- :
- mazda mazdaspeed3
the key is if they can get the fuel pump that work right....i got 2 bad fuel pump back to back.....:mad:
ronniekarn
Member
i dont understand why people can never just answer peoples questions on here. he asked something simple yet all i see is get this or get that, just answer him, theres plenty of posts on why the cdfp is good etc and thats why those arguments rest on other posts.
anyways, ur prolly gonna see problems when u install a different downpipe as thats when most are seeing em with fuel/boost. when i installed mine i got fuel cut. my problem went away when i got the cp-e standback though, but i still hit fuel cut in cold air (40-50s). luckily thats about the coldest i see here. a friend of mine tho only did a test pipe and downpipe but stock exhaust and doesnt get fuel cut, running open downpipe gets the cut tho. hope thatll help.
anyways, ur prolly gonna see problems when u install a different downpipe as thats when most are seeing em with fuel/boost. when i installed mine i got fuel cut. my problem went away when i got the cp-e standback though, but i still hit fuel cut in cold air (40-50s). luckily thats about the coldest i see here. a friend of mine tho only did a test pipe and downpipe but stock exhaust and doesnt get fuel cut, running open downpipe gets the cut tho. hope thatll help.
udontknowjack
Member
- :
- mazda mazdaspeed3
how did your standback fix the fuel cut?? (uhm)
ronniekarn
Member
well i think it fixes it thru how it runs the boost. i dont spike as much and it holds it a lot better. overall my car ran 10x better just after installing the standback. i havnt tuned it yet tho because i just havnt had time. when it is colder tho my boost does stay and hold at 17-18 psi even on stock settings and thats when i usually get fuel cut. when i run on the 17 psi settings in cold it usually holds 18-20 psi and i get fuel cut pretty bad. i get no sputter issues tho, just fuel cut. weather has warmed back up tho and since i havnt hit fuel cut although i do see its holding more just 15-16 psi on stock settings.
lol... you hit fuel cut if you run out of fuel, RonnieKarn. It could be because it s too cold with an intake. It could be because of exhaust. intercooler, especially TMIC, seems to induce it worse. Turning up the boost will do it with any of these mods.
Does that answer the question?
The bottom line is that the cdfp ends it. Who cares what gazillion setups or conditions cause it.
Does that answer the question?
The bottom line is that the cdfp ends it. Who cares what gazillion setups or conditions cause it.
udontknowjack
Member
- :
- mazda mazdaspeed3
will getting a tune fix the fuel cut issus?
If the ecu is calling for fuel and its not there... you can try to overcome it with a tune. I dont think the standback is capable of tuning it out much though.
If I had to guess I think the AP will do a much better job. I have not heard of them talking about fuel cut issues even with their intake, tbe, and fmic. It remains to be seen how much their uping the boost though.
Besides... eventually everyone will have a cdfp and it helps out so many other parameters in the car as well. The ecu definitely seems to like it. i just think you'll be crazy frustrated with the stockpump, standback, and big mod list.....especially in colder weather...
mrlilguy157
Member
- :
- 07 mazdaspeed 3
a real tune, but not permanently.
fact of the matter is, if you wanna get more power, you gotta get an upgraded pump to keep fuel pressures adequate as more volumetric fuel is flowing... that, mixed with a MAP sensor trick (stand back, MAP clamp, or ATP fuel cut defender), and possibly the IAT sensor trick (proper resistor or potentiometer) should keep you out of fuel/boost cut, but I wouldn't be surprised if there is more fail-safe's featured in the stock Mazda ECU tune.
x2
udontknowjack
Member
- :
- mazda mazdaspeed3
i wish i have a working cdfp....(sad1)
dadasracecar
Member
The standback has a map clamp built in to it and that's how it'll prevent the boost related fuel cut. The temperature related fuel cut is fixed with the IAT potentiometer trick. I never hit fuel cut with the standback (18 psi) until it dropped below 54 degrees. Then I got it all over the place regardless of the boost i dialed. The upgraded pump did not fix it. When i wired in the IAT poteniometer, AKA cpe winter fuel cut fix, I eliminated fuel cut from the low temps.
wow if you still got cut with the CDFP you have problems. it is a CDFP right not an in tank pump ? cuz them goofballs on the MS6 side seem to think the in tank pump helps....that is moronic ! the iat temp mod is dangerous. you car is cutting because it doesnt have enough fuel to SAFELY continue at the power level you are demanding. when you lie to it you are running lean. bad idea. we have 2 ms3's with the CDFP running 19-22psi with lots of mods in freezing temp, no cut.
