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Skyline R33 Rb25Det - Dont Get Wet Sparks?

Emiiilz

By Emiiilz,
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Emiiilz Rookie

Emiiilz

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Hello im from sweden, i join this forum becuse my problem.

I have a Skyline R33 GTST RB25det 1994.

I cant get my sparks wet with fuel? sometimes 1 or 2 sparks get wet but not the other one.

Okay, im not a idiot, hehe, i have check this things:

- New Whalbro fuel pump.

- New Jecs 720cc injectors.

- New plenum intake.

- Kompression 12kg at all cylinders = OK.

- Fuel in the tank, 1/2 tank.

- I get fuel to the injectors.

- i have remove the injectors and rail and try it, and all injectors work fine (spray nice).

- The cams are right, even the crank.

- i have look at the CAS, even meet it up with a multimeter (voltage/ohms 600) and its seems to work nice.

But, im thinking about the fuel pressure, the injectors want 3bars pressure, how mutch is it with the original fuel pressure "sensor"?

Im thinking to change this but i dont know if i need, its seems to be okay pressure now to, and all the 6 injectors open nice.

But i can't get all sparks wet? The engine dont start becuse this, with startgas the engine want to run but it need more fuel.

If it take in air between engine/intake, could it make this problem to?

Hope all understand my english, im not best at it..

// Emiiilz from Sweden. :)

Edited by Emiiilz
Emiiilz Rookie

Emiiilz

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hmm i mean.. When you check if the engine get fuel you check the spark, if the spark are wet/dry with fuel its get fuel into the engine.

Hope you understand what i mean. I can't understand why, becuse the injectors work and spray, i thinking about the fuel pressure, but

original its should be 3 bar and thats most be enugh? injectors want 3 bar.

iruvyouskyrine Grand Master

iruvyouskyrine

Posted
Posted

I think he is trying to say that his spark plugs are not getting "wet" as in no fuel is being injected into the cylinders. When he uses start ya bastard or similar to try and start it it works.

Has the car been running fine before this, and the problem has just started? Or have you just put a new engine in etc?

It sounds a lot like the fuel lines have been hooked up backwards, which is fairly easy to do and a very easy fix :)

Emiiilz Rookie

Emiiilz

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<p>He already said he took Injectors out and they spray fine....but he hasn't said if ecu is upgraded to match 720 injectors...though if it isn't they would be dripping wet..lol </p>

thanks for the help but i have try all this allready. The map is for 720cc injectors, i get it from Haltech, i run that ECU.

i have try others map to but no diffrence. And the fuel lines are right and the whalbro pump is cable into the stock harness.

i have try to put the ignition coils out to and try but no diffrence. i cant just understand this...

Emiiilz Rookie

Emiiilz

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As I asked before. Was the car running fine before these upgrades or have you never had this car running?

sorry i miss this. Yes the car run before but then its was nearly original in the engine, i have rebuild the engine now with some

parts like Haltech Ecu/mainfold/turbo/plenum intake/injectors/engine gasket 1.3mm/exahust/intercooler and more things...

I have a failure code at the TPS, i cant se voltage in the computer at it, but can this have with my problem to do really?

Emiiilz Rookie

Emiiilz

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Now the car start? i have dont do nothing, the car just start when i turn the key?? icon_question.gificon_eek.gif
And its go nice?? i have drive the car and its work fine, haha whaat? icon_question.gif
okay, im very happy but i cant understand this problem.....

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