Jump to content
SAU Community

Problems With My Line.

dacow

By dacow,
in Engines & Forced Induction

 Share

Recommended Posts

dacow Proficient

dacow

Posted
Posted

Hey all,

I seem to have a problem with my S2 33 GTS-T. The Bosch 040 in tank suddenly has gotten REALLLLLLLLLLY loud. It's never been this loud before and only seems to be getting louder. Previously to getting it tuned (3 weeks ago), you couldn't hear it at all. It got tuned with new injectors and I'm assuming the PowerFC is asking it to flow more so it's louder. Loud being the whiney noise you hear when it works.

The car cannot boost at the moment. It was fine after the tune, however I took a drive up to Newcastle and on the way back it started spluttering when I boosted it. At first I thought it was the clutch slipping so thats been changed for a new item. Now it's still doing it. Basically on stock boost or any boost, the car runs fine but when it tries to boost at 4-4.5K rpm it starts to backfire, and the engine cuts in and out. The same feeling you get when you hit redline except it sounds like it's backfiring. Doesn't matter what gear it is, as soon as it starts to boost same thing happens.

Does anyone have any ideas or questions which might enable me to sort it out? The only thing I can think of is the fuel pump? It was boosting fine after the tune. Two days after the tune I took it to Newcastle. It's since been off the road due to me waiting for the clutch and installation and now it seems the problem is still there.

Any points would be greatful. I'll be taking it to a workshop soon but just interested to see if anyone has anything to add :P I only drive it back and forth from the station but I'm worried more driving could potentially cause damage to it.

Thanks all for reading :no:

Link to comment
https://www.sau.com.au/forums/topic/138113-problems-with-my-line/
Share on other sites
Bluprint Veteran

Bluprint

Posted
Posted
The car cannot boost at the moment. It was fine after the tune, however I took a drive up to Newcastle and on the way back it started spluttering when I boosted it. At first I thought it was the clutch slipping so thats been changed for a new item. Now it's still doing it. Basically on stock boost or any boost, the car runs fine but when it tries to boost at 4-4.5K rpm it starts to backfire, and the engine cuts in and out. The same feeling you get when you hit redline except it sounds like it's backfiring. Doesn't matter what gear it is, as soon as it starts to boost same thing happens.

Probably the classic dying coil packs.

They all do it.... in fact mine is doing it at the moment too. You'll most likely need to go get yourself a replacement set of coils - unless it turns out to be something else that's causing the problem

Dman666 Apprentice

Dman666

Posted
Posted (edited)

Same problem struck me; my 040 got REAL loud and then I started to lose power a week or so later. Turned out the pump was rooted and the power loss is due to the pump not maintaining adequate fuel pressure. Changed my pump and all was sweet. On a side note, my 040 was less than a year old and was in really bad condition when I removed it from the tank so I am now a little dubious of bosch's quality control.

Edited by Dman666
shif_tea Grand Master

shif_tea

Posted
Posted
Same problem struck me; my 040 got REAL loud and then I started to lose power a week or so later. Turned out the pump was rooted and the power loss is due to the pump not maintaining adequate fuel pressure. Changed my pump and all was sweet. On a side note, my 040 was less than a year old and was in really bad condition when I removed it from the tank so I am now a little dubious of bosch's quality control.

i've heard quite a few horror stories about the bosch fuel pumps, but then i'm sure heaps of people have no troubles with em. I wouldn't get one though.

Gus have you by any chance tried hitting it with a hammer?? That works for me with things....

dacow Proficient

dacow

Posted
  • Author
Posted
Same problem struck me; my 040 got REAL loud and then I started to lose power a week or so later. Turned out the pump was rooted and the power loss is due to the pump not maintaining adequate fuel pressure. Changed my pump and all was sweet. On a side note, my 040 was less than a year old and was in really bad condition when I removed it from the tank so I am now a little dubious of bosch's quality control.

sounds exactly like it.. outta the tuner's shop and it was moderately loud.. but not as loud as it is today.. mind I ask what you ended up changing it for?

Dman666 Apprentice

Dman666

Posted
Posted
sounds exactly like it.. outta the tuner's shop and it was moderately loud.. but not as loud as it is today.. mind I ask what you ended up changing it for?

Was a little short on cash at the time so went back to a stock.....no drama's since.......been keeping a lookout for a cheap tomei one though.

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
      GTR R34 Limp Mode

      By GTSBoy · Posted

      Has equal chance of cleaning an AFM and f**king an AFM. I think you can work out what happened. When the Hitachi ECU sees the AFM die and goes into the associated limp mode, then it will start and run just fine, because it ignores the AFM and just runs on idle maps that will do what it needs to get it going. But there is no proper load signal, so that's about all it can do. My suggestion? If you don't want to go full aftermaket ECU, then get some R35 GTR AFM cards and some housings to put them in, in the stock location, and Nistune the ECU. Better to do a good upgrade than just replace shitty 40 year old tech with the same 40 year old tech.
    • steven7270
      GTR R34 Limp Mode

      By steven7270 · Posted

      So my car was recently having trouble starting on initial crank, I would need to feather the gas for it to start up but besides that it would start and run fine. So I clicked the idle air control valve (with throttle body cleaner) and cleaned the MAF sensors (with MAF cleaner). The start up issue was fixed and now the car turns over without the assist of the throttle, but the car is in limp mode and wont rev past 2.5k RPM. From what I understand the IACV would not put the car in limp mode, so I am to believe it is the MAF sensors, but it was running fine before and now I cant get it out of limp mode. I cleaned the MAF made sure the o rings were seated properly. Made sure the cables were plugged in properly, the cables also both read the same voltage. Does anybody know why this is or what could be causing this or how to get it out of limp mode?
    • Dose Pipe Sutututu
      SAUNSW - Cruise - Albion Park Aviation Museum - 9th August

      By Dose Pipe Sutututu · Posted

      Ooo I might actually come and bring the kids, however will leave the shit box home and take the daily
    • PranK
      Rusty roof repair

      By PranK · Posted

      Thanks. Yeah I realised that there's no way I'd be able to cover the holes with the filler, it would just fall through. Thanks again @GTSBoy!
    • GTSBoy
      Rusty roof repair

      By GTSBoy · Posted

      That was the reason I asked. If you were going to be fully bodge spec, then that type of filler is the extreme bodge way to fill a large gap. But seeing as you're going to use glass sheet, I would only use that fibre reinforced filler if there are places that need a "bit more" after you've finished laying in the sheet. Which, ideally, you wouldn't. You might use a blob of it underneath the sheet, if you need to provide some support from under to keep the level of your sheet repair up as high as it needs to be, to minimise the amount of filler you need on top. Even though you're going bodge spec here, using glass instead of metal, the same rules apply wrt not having half inch deep filler on the top of the repair. Thick filler always ends up shitting the bed earlier than thin filler.
×
×
  • Create New...