Jump to content
SAU Community

Do I Have A Boost Fault?

Hotr34

By Hotr34,
in Queensland

 Share

Recommended Posts

Hotr34 Proficient

Hotr34

Posted
Posted

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
Crimpage Community Regular

Crimpage

Posted
Posted

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

Konrad Grand Master

Konrad

Posted
Posted
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

Keegs Grand Master

Keegs

Posted
Posted (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 by 33NIZ
Konrad Grand Master

Konrad

Posted
Posted
Sorry but hoseclamps to what? the tap?

everywhere but in my case it was the cooler piping itself, right before the throttle body :laugh: 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

Col-GTSX Grand Master

Col-GTSX

Posted
Posted

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...

Aif Collaborator

Aif

Posted
Posted

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 :(

Keegs Grand Master

Keegs

Posted
Posted (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 by 33NIZ
R334door Experienced

R334door

Posted
Posted
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.... :yes:

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.

markimak Grand Master

markimak

Posted
Posted

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 :)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      R32GTR R200 reverting from Nismo centre to stock

      By GTSBoy · Posted

      I like it when the counter chick leads you out the back into the racks and says "have a grub around in here and see if you can find what you need. I'll be back in a few minutes. Just left me in front of a massive motorised shelving system and 2-3 million fasteners, so I could find a peculiar SS shoulder bolt with cap head. Gotta love country towns.
    • Piggaz
      R32GTR R200 reverting from Nismo centre to stock

      By Piggaz · Posted

      I used this https://osgiken.com.au/product/os-giken-os-250r-lsd-gear-oil-80w250-1-litre/   shut my nismo 1.5 pro up by heaps…. Not silent though. Gives the car character and personality. It ain’t a carolla. If you want silent, put a quaife in it.
    • MBS206
      R32GTR R200 reverting from Nismo centre to stock

      By MBS206 · Posted

      It's about the same time for me from Bunnings, or the Fasteners. My big push away from takeaway food, and gluten in general keeps me away from the Bunnings Snags too! Weather up here, I've been out for two walks today in the beautiful sunshine. Had a few little drizzles, and some wind, that honestly, a tin of beans and I could compete on how harsh she blows Thankfully, being this bit inland, we're not getting anything much really. Will probably pick up a bit more when/if Cyclone Alfie decides to come ashore. A few areas in the GC though, and south into NSW are really getting smashed though! Right now, I'm just annoyed Alfie hasn't hit, as I'm not allowed to crack into the BBQ foods like the bacon and eggs until the Cyclone hits "In case we lose power"...
    • The Bogan
      R32GTR R200 reverting from Nismo centre to stock

      By The Bogan · Posted

      I love fastener joints, the price difference between them and joints like Bunnings or Super Cheap is amazing, and they either have exactly what you want, or they can get it to quick They have even given me some for free when I only needed a couple of specific size In saying this, I have paid premium for fasteners from Bunnings if they have the sizes I need, but only for convenience really, as my local is only 10 minutes away, the Sushi joint near them is also a consideration  How's the weather Matt? Stay safe mate
    • joshuaho96
      R32 update from 1990's spec.

      By joshuaho96 · Posted

      Wideband is worth setting up if only for tuning purposes. I would not mess with the ignition system unless there's a misfire. HKS crank trigger is popular out here for the relatively easily sourced Denso crank sensor, not a bad idea to install as well regardless of power level on a standalone. Boost leak test is worth thinking about. Oil pressure sensor tied to a fuel cut isn't a bad idea either. Getting the tune figured out is a good idea. Without putting eyes on it and getting under it there's no way for us to tell you exactly what it needs but most likely you're down to the last 10% that will make a big, big difference in how happy you are with the car.
×
×
  • Create New...