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Hi Ive Got Boost Probs With My R33. Pls Help!

princess01

By princess01,
in Engines & Forced Induction

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princess01 Community Regular

princess01

Posted
Posted (edited)

:D

HI. ive got an R33 and for the last 8 days ive been having probs with excelleration. When i take off the car feels like it is pulling back. It is really hard to get ay boost and when i do it comes in dangerous short bursts. I thought it my be fuel tampering (scabby servos) so i let it run dry and went to anoher shell but its still happening. I'll be drving and will try and put my foot down and get no power then all of a sudden, i get, as i said, a shor power intake and it is quite dangerous cause it will happen when im right behind another vechile.

So if anyone out there has any suggestions i would more than appreciate your help as im so worried about my princess....

Thanks in advance

Gem

Edited by princess01
pixel8r Mentor

pixel8r

Posted
Posted
:sick:

HI. ive got an R33 and for the last 8 days ive been having probs with excelleration. When i take off the car feels like it is pulling back. It is really hard to get ay boost and when i do it comes in dangerous short bursts. I thought it my be fuel tampering (scabby servos) so i let it run dry and went to anoher shell but its still happening. I'll be drving and will try and put my foot down and get no power then all of a sudden, i get, as i said, a shor power intake and it is quite dangerous cause it will happen when im right behind another vechile.

So if anyone out there has any suggestions i would more than appreciate your help as im so worried about my princess....

Thanks in advance

Gem

I had similar problems with my last car (silvia turbo). Cleaning the air flow meter helped (take it out, run some metho over the element that sits in the middle of the afm (do NOT touch any wires with your fingers), let it dry fully then put it back in the car). Not sure what the problem was exactly. It seemed to do it more in hot weather or after the car had heated up a bit.

The reason cleaning my afm helped was because I was using an oiled air filter (k&n) and they tend get oil all over the element in the afm. I changed back to a dry air filter and had much better results. Cant say if the afm was the problem. I suspect the problem may have been elsewhere and just made worse by the afm reading incorrectly.

Other suggestions might be to check the fuel pump?? dunno.

Does it seem to accelerate ok up to when you'd hit boost? Does it stutter or just really bog down and you get nothing? In my case the revs would build up slowly and it would seem to pick up a little but it was terrible. And only after 15-20 minutes or so of driving. Often I could turn the car off then back on and it would be fine for a couple of minutes.

Yo-Yo Grand Master

Yo-Yo

Posted
Posted

Hi, It might help if you list any mods (if any) on the car that you are ware of.

One of my mate's personally imported a series 6 RX-7 & it ran like crap because it was tuned in Japan to run on their premium fuel (108ron?). A simple re-tune on the dyno fixed it right up & it runs beautifully now.

has the car been previously owned in australia or are you the first owner?

Good luck with fixing your car & hopefully someone on here has an answer for you.

princess01 Community Regular

princess01

Posted
  • Author
Posted
Hi, It might help if you list any mods (if any) on the car that you are ware of.

One of my mate's personally imported a series 6 RX-7 & it ran like crap because it was tuned in Japan to run on their premium fuel (108ron?). A simple re-tune on the dyno fixed it right up & it runs beautifully now.

has the car been previously owned in australia or are you the first owner?

Good luck with fixing your car & hopefully someone on here has an answer for you.

Hi,

There are no mods at alll on the car. It was owned in aus before me. Thanks for the advice. Ill give it a go

RANDY Veteran

RANDY

Posted
Posted

So... when you give it half throttle, it stutters? Or it drives normally but with no boost? When the boost comes on, it shouldn't launch you TOO hard on a stocker. What does the boost guage read when all this happens?

How far are you putting the boot in?

If it IS just the boost, and not a fuel or coilpack or whatever problem, then maybe you have a sticky wastegate actuator? You'd have to be gunning it and not just normal traffic driving to generate that much boost that you feel it though.

SECURITY Grand Master

SECURITY

Posted
Posted

she did say it happens when shes taking off so its not the common misfiring problem.

it could be your:

CAS

AFM

spark plugs

coil packs.

do the spark plugs if you havent already. take your AFM out and spray with carby cleaner. do my coil pack fix, and try swap your CAS with someone else with an r33.

if you can get your hands on someone else's CAS, then do that first.

if you were in syd i'd be able to give you a hand.

princess01 Community Regular

princess01

Posted
  • Author
Posted
Sounds to me like misfire

Does it happen around 4000/5000rpm onwards?

hi ta for your suggesstions. i took it apart and it is the coils. one cover is broken. YEAH!!!! not the thousands of crap that i thought it may be:)

ta gem

princess01 Community Regular

princess01

Posted
  • Author
Posted
Check sparks, check coilpacks for hairline cracks, clean afm?

Does "sound" like the common missfire problem that nearly every line owner has.

hi ta for your suggesstions. i took it apart and it is the coils. one cover is broken. YEAH!!!! not the thousands of crap that i thought it may be:)

ta gem

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