Fueling i think

200SX MP · Post by **200SX MP** » Sat Nov 24, 2007 10:30 am

howdy dudes long time no see my car at +- 4500 revs when the turbo starts to work the car coes ppppprrrrrrrrrrrrrrrrrrrtttttttttttttttttttttttttt !!!!!!!!!!!!!!!!!!!!!!!!!!!

any sugestions PLEASE

Toby · Post by **Toby** » Sat Nov 24, 2007 11:00 am

You gunned it, you broke it, now mod it

(Read that in Shift S13's sig

)

Shift S13 · Post by **Shift S13** » Sat Nov 24, 2007 6:30 pm

Hehe, glad I could be of assistance

Shift S13 · Post by **Shift S13** » Sat Nov 24, 2007 6:35 pm

The sound you describe sounds like a blowing manifold to turbo gasket..like blowing on a piece of folded paper? Does the pitch of the sound increase with boost?

Trance101 · Post by **Trance101** » Sat Nov 24, 2007 7:11 pm

Could it not be a simple boost leak? Maybe check your piping. Does it sound like air escaping?

veecee · Post by **veecee** » Sat Nov 24, 2007 7:12 pm

sounds more like the turbo blades touching the turbo housings???

a rebuild could be in order!

same thing happened to mine.

200SX MP · Post by **200SX MP** » Sun Nov 25, 2007 9:28 am

no its miss fireing

veecee · Post by **veecee** » Mon Nov 26, 2007 7:54 am

aah - ok!

the ppprrrrrttttt description didn't translate properly in my stoopid head!!!

LOL - misfiring could be hundreds of things!

do the basics first - give it a service!

if it still misfires then start searching for strange things. check the codes on the ECU. check the power transistor, coils, CAS, fuel pump, fuel pressure regulator, the injectors, the injector resistor pack, the AFM, the water temp sender unit, the wiring to all of those good things...

also check that everything is grounded properly.

and GOOD LUCK, may the force be with you, god speed, and all that!!!

Speed breeder · Post by **Speed breeder** » Mon Nov 26, 2007 9:51 am

Check obvious first:
- spark plug leads, spark plugs
- Timing (lumpy idle or not)
- fuel pressure - replace fuel filter in process
- turn down boost and then check frrrprprrrr - sound gone?

It's not cool if your car sounds like your rice crispies cereal...

I must admit it sound like a fueling issue...

Be mindfull of surge/detonation...

200SX MP · Post by **200SX MP** » Mon Nov 26, 2007 6:30 pm

Will do so thanks dudes

veecee · Post by **veecee** » Mon Nov 26, 2007 8:22 pm

Speed breeder wrote:Check obvious first:
- spark plug leads

???????????

Ero_sennin · Post by **Ero_sennin** » Mon Nov 26, 2007 9:25 pm

veecee wrote:
Speed breeder wrote:Check obvious first:
- spark plug leads
???????????

lol I was thinking the same thing

200SX MP · Post by **200SX MP** » Mon Nov 26, 2007 9:27 pm

Does any one know were i can get an old demingo`s software cd to programe my pcm

Toby · Post by **Toby** » Mon Nov 26, 2007 10:03 pm

Ero_sennin wrote:
veecee wrote:
Speed breeder wrote:Check obvious first:
- spark plug leads
???????????
lol I was thinking the same thing

Maybe he means make sure that spring at the end of the coil is making good contact with the spark plug?

Altho I guess those leads to the coil packs could be checked, hey veecee??

veecee · Post by **veecee** » Tue Nov 27, 2007 6:19 am

i guess...

but i immediately associate the word "leads" with the less abreviated version "HT leads".

and if he was using them, then i also would want to find out why and how, because i really dont like having my coil packs on top of my plugs, and i would love to move them, but it would look really frakkas!!!