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Fuel Wash Please Help

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Rancor

New Member
Joined
Mar 16, 2005
Messages
55
I am getting fuel wash on my 87GN.
I have replaced the Coolent Temp Sensor but don't know what is causing the rich conditions.
Any advise would be great....
 
If the car is running really rich it could be a injector is stuck open?

When you first start the car up, does it stumble real bad and take about 20 seconds for it to idle a little bit normal?

If you put a fuel pressure gauge on it start the car up, run it, shut it off.
If the fuel pressure drops off pretty fast, then it could be a sticky injector or the fuel pump is bleeding back the pressure...

I would pull the spark plugs and change the 02 sensor.

Does the car make any odd noises?
BW
 
I have a pressure gauge on the fuel line and it dosn't drop off, But i did take the intercooler to manifold line off and there is oil in it so i am thinking it might be a bad Turbo. (and not bad rings). The car has sat for the past year and a half, and only has about 400KM on it in the rich condition. Oil has be changed and i am watching for fuel in the oil. (need a few more KM's)
Any thoughts?
Rancor
(Mark)
 
Vac. leak?
Maf hose leak?
Try disconnecting the orange wire and then removing/re-installing the chip.
Is it the right chip for your injectors?
Paul
 
Not 100% on the Injectors/Chip Will look in to it.
Will a bad turbo cause oil burn?
Found oil in the Intercooler to manifold line...
Mark
 
Its pretty normal to find excessive oil in the up pipe and throttle body-

Does this car still have the 3/4 inch tube leading from the passenger side valve cover to the turbo inlet bell?
It will suck oil vapor from the valve cover, put it thru the turbo and puddle in the bottom of the intercooler-
You most likely dont have a bad turbo, pull the inlet bell 2 13mm nuts off the inlet bell and see if the turbo shaft and blade has excessive play, if it moves just a little, you will be fine- Just pull the intercooler out and wash it out with gas, clean the uppipe and throttle body-

As for the fuel washing, if the car was ran hard and then sat for a period of time, some of that fuel could be in the oil-

I would check the turbo, change the spark plugs to NGK UR5, BOSCH 02 sensor, replace the spark plug wires and change the oil and fuel filter.

Run it and see what happens, if it doesnt make any strange noises then drive it-
If the maf is backwards the plugs will foul instantly-
Pull the chip out of the computer and see what it is.
Does this car have stock injectors?
BW
 
Holy crap thats alot of info i will do my best to answer all the questions....
The injectors are not factory, But i do not know what they are....
I am getting (what seems like Blow by) only when the motor is hot.
No smoke on startup or after 5 min. (takes about 15 min to start blowing Smoke). I was told that it was a GNX Turbo but am not sure how to tell.(new to GN's) The car runs good but the smoke is pissen me off.
I don't think it is bad rings.
I am lost on turbos so please bare with me....
Mark

PS I an loosing a bit of oil from the back of the turbo.
What ane the GN amd GNX Turbo #'s and where are they on the turbo....
 
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