[Chevalier66]

hey guys......little help,,,,was driving and accelerated was not a hard one and there was a pop.....so i creeped back home

and looked around the engine bay....the turbo had oil on it.....i changed the injectors and coils.....checked for vacuum

leaks and fuel filter.....engine runs a lot smoother but....still runs rich....so what is my next move.

 

[collegekid]

What kind of pop? was it backfire from the exhaust or you heard something in the engine bay?

Is the car driving weird? Have you checked the ecu for codes?

 

[Chevalier66]

POP WAS FROM ENGINE BAY....CAR SMELLS LIKE RAW FUEL....THERE IS OIL INSIDE OF INTERCOOLER AND ON THE TURBO.....I PULLED THE HARNESS CONNECTORS FROM INJECTORS 1-3 WAS A CHANGE IN ENGINE PERFORMANCE.....#4 WAS NO CHANGE....I PUT NEW INJECTORS IN AND SAME SYMPTOMS...NO I HAVE NOT CHECK ECU.....IM LEANING TOWARD A NEW HARNESS ITS ORIGINAL TO MOTORSET.

 

[collegekid]

Do you have a consult port reader?
Basically I need you to verify all the sensors are working properly. MAF, coolant temperature sensor, TPS, etcetera.
I will make another post about what you need to buy ( $20 adapter, download some free software on your laptop)
Make sure your oxygen sensor is reading correctly.

Can you verify the fuel system is correctly holding pressure and you have no leaks?

I also suggest you check for any exhaust leaks.


As far as oil in the intercooler, that may be a sign that you have a blown oil seal on the turbo.
Do you have the factory hardlines for the turbo or are you using aftermarket lines?
I ask because a lot of times, when using aftermarket, people don't use a proper oil restrictor on the oil feed line and too much oil at too high of a pressure make it to your turbo, blowing out the seal.
On the oem hardlines, the banjo bolt has a very small orifice for the oil to pass through.
Some aftermarket lines like this one

P2M NISSAN S14/15 SR20DET STEEL BRAIDED TURBO LINE KIT - TOP MOUNT

www.phase2motortrend.com

use the factory banjo bolt and others do not.


Your changing out the injectors makes sense.
I would not immediately think that the harness is bad.
If your car runs fine but just smells like gas, it could be either your car running very rich due to a bad sensor OR you have some nasty exhaust leak.