Hotr34 Posted January 24, 2007 Share Posted January 24, 2007 I have had an intercooler fitted and if im on the moterway and drop down to third at 80-100kmh and floor it, when i get to 5000rpm my moter cuts out for 1 sec and then kicks back in. When i turn my boost down it will not cut out but i have no power. Do u think my tap is faulty??? And I have no power FC. Please help Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/ Share on other sites More sharing options...
Crimpage Posted January 24, 2007 Share Posted January 24, 2007 I have limited knowledge about this sort of problem, but it could be your spark plug gap is too far. The new amount of airflow from your intercooler / increased boost might be effecting it. Search for that, there has been a number of posts on it. Cheers, Dave Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2849996 Share on other sites More sharing options...
Konrad Posted January 24, 2007 Share Posted January 24, 2007 I have had an intercooler fitted and if im on the moterway and drop down to third at 80-100kmh and floor it, when i get to 5000rpm my moter cuts out for 1 sec and then kicks back in. When i turn my boost down it will not cut out but i have no power. Do u think my tap is faulty??? And I have no power FC. Please help check all your hoseclamps to make sure they're tight, i had a similar problem and that was the cause Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850009 Share on other sites More sharing options...
Hotr34 Posted January 24, 2007 Author Share Posted January 24, 2007 thanks guys will do when i get home and let you know. any other ideas will help Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850040 Share on other sites More sharing options...
Hotr34 Posted January 24, 2007 Author Share Posted January 24, 2007 Sorry but hoseclamps to what? the tap? Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850053 Share on other sites More sharing options...
Keegs Posted January 24, 2007 Share Posted January 24, 2007 (edited) what boost are you running (on high boost)? Is your car stock? Does it seem like its hitting a limiter? Btw this is more a forced induction section issue. Edited January 24, 2007 by 33NIZ Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850079 Share on other sites More sharing options...
Hotr34 Posted January 24, 2007 Author Share Posted January 24, 2007 yer the car is stock apart from intercooler with 12 psi,(high boost) i just got a new pod for it. Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850109 Share on other sites More sharing options...
Hotr34 Posted January 24, 2007 Author Share Posted January 24, 2007 it does hit the limiter if i want it to but i change gear around 6000RPM 1000RPM before redline.... Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850120 Share on other sites More sharing options...
Konrad Posted January 24, 2007 Share Posted January 24, 2007 Sorry but hoseclamps to what? the tap? everywhere but in my case it was the cooler piping itself, right before the throttle body it was tight enogh to not blow the hose off completely but loose enough so that once it made above say 5psi it would spring a leak, all boost would go out and the motor would cut out for a sec Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850264 Share on other sites More sharing options...
Col-GTSX Posted January 24, 2007 Share Posted January 24, 2007 You are hitting boost cut... Either get an aftermarket ecu or an safc or similar piggyback ecu... The car is basiclly cutting out due to an overboost error, the ecu is trying to save the engine... So when you turn the boost down it does not cut out, and you have no power because you turned the boost down.... Also search topics "Boost cut defender, fuel cut & boost cut" There are many ways to combat it with out spending allot of money, but if you have a stock ecu id spend the money personally and buy a PFC straight away. Its not safe to run 12psi on a stock ecu with standard fuel maps... Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850555 Share on other sites More sharing options...
Aif Posted January 24, 2007 Share Posted January 24, 2007 i had this when i got my FMIC installed, but it was because of a hose that goes from the boost sensor to the BOV had melted shut(caused boost spiking so engine was retarding itself). replaced hose and problem is fixed. it was also recommended that i check my plugs,coils, get a ecu or piggy back AFC and get a tune. also if u got a K&N filter they can get oil on ur AFM which can cause issues so u may want to look up the tutorial on cleaning your AFM Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850606 Share on other sites More sharing options...
Keegs Posted January 24, 2007 Share Posted January 24, 2007 (edited) You are hitting boost cut...Either get an aftermarket ecu or an safc or similar piggyback ecu... The car is basiclly cutting out due to an overboost error, the ecu is trying to save the engine... So when you turn the boost down it does not cut out, and you have no power because you turned the boost down.... Also search topics "Boost cut defender, fuel cut & boost cut" There are many ways to combat it with out spending allot of money, but if you have a stock ecu id spend the money personally and buy a PFC straight away. Its not safe to run 12psi on a stock ecu with standard fuel maps... Col has hit it on the head, this is why I asked what boost you were running and whether it feels like your cars hitting a limiter. I probably wouldn't be running in excess of 12psi all day anyway, especially not in this hot weather. Your car may be spiking as well, causing the ecu to boost cut but then when your boost falls back it allows it to go. Regardless, the only way to fix your problem is to do one of the things mentioned above, saving you money later will be to buy a pfc or safc at least. Good Luck, Matt Edited January 24, 2007 by 33NIZ Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850634 Share on other sites More sharing options...
Col-GTSX Posted January 24, 2007 Share Posted January 24, 2007 Dont forget that Apexi stopped making PFC's so id be getting one like NOW!!!! Otherwise you'll be paying top dollar for one... Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850659 Share on other sites More sharing options...
666DAN Posted January 24, 2007 Share Posted January 24, 2007 I built one of these for my boost cut, I get it with the highflow at low revs http://www.skylinesaustralia.com/forums/in...=151764&hl= Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2850905 Share on other sites More sharing options...
Hotr34 Posted January 25, 2007 Author Share Posted January 25, 2007 how much should i expect to pay for pfc? can anyone help me find one and where to fit it..... Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2852633 Share on other sites More sharing options...
R334door Posted January 25, 2007 Share Posted January 25, 2007 You are hitting boost cut...Either get an aftermarket ecu or an safc or similar piggyback ecu... The car is basiclly cutting out due to an overboost error, the ecu is trying to save the engine... So when you turn the boost down it does not cut out, and you have no power because you turned the boost down.... Also search topics "Boost cut defender, fuel cut & boost cut" There are many ways to combat it with out spending allot of money, but if you have a stock ecu id spend the money personally and buy a PFC straight away. Its not safe to run 12psi on a stock ecu with standard fuel maps... you beat me to it col, sure sounds like a boost cut. Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2854421 Share on other sites More sharing options...
markimak Posted January 25, 2007 Share Posted January 25, 2007 has someone mentioned fuel cut? the ecu senses too much of fuel or air (boost) and cuts it. most likely when u just get it to full boost as it will spike. PFC will fix. i hit fuel cut on a CA18DET at 22psi.. well it was 22 as the guage went to 20psi Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2854995 Share on other sites More sharing options...
markimak Posted January 25, 2007 Share Posted January 25, 2007 800 for 2nd hand and 1000+ for new.. u have a R34 so u can afford a 1000+ PFC Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2855008 Share on other sites More sharing options...
Col-GTSX Posted January 27, 2007 Share Posted January 27, 2007 has someone mentioned fuel cut? Fuel cut, boost cut same thing... All caused by over boosting and the stock ecu try's to protect the engine from destruction... Link to comment https://www.sau.com.au/forums/topic/153180-do-i-have-a-boost-fault/#findComment-2856862 Share on other sites More sharing options...
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