Gas in oil

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moso
Posts: 801
Joined: Sat Jul 04, 2009 5:14 pm
Car: 89 240sx ka24de 5spd
90 240sx ka24de RIP

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ok so i rebulit my motor and to make a long story short i now am getting fuel in my oil. i have ordered new injectors because the old ones are over 200k/mi so i figured its a good place to start. i have a consult cable and everyting seems to be functioning fine.
maf 1v at idle 3v wot.
tps .5v idle ohms good 2ohm to 10ohm, no apparent dead spots.
iacv seems to function normally, high idles and low idles. timing at 18deg.
MY RINGS ARE NEW AND MY COMPRESSION IS HIGH, so i dont suspect any internal damage to the rings or cyl walls.
new o2 seems to function fine on the consult (yes it will go LEAN and rich)
however i do have hesitation under hard acceleration intermitently throughout the powerband.

the question is what would cause gas in the oil?


jrad240sx
Posts: 53
Joined: Sun Mar 16, 2008 3:10 pm
Car: 1990 Nissan 240 SX

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its your injectors no big deal swap injectors get some cheap oil drain the gas oil and run cheap stuff for a while then swap it out for what you normally run... same problem i had. check out my build thread just started one... after new year will be having more pictures of stuff im doing. extra fuel and you have fuel blow by

User avatar
moso
Posts: 801
Joined: Sat Jul 04, 2009 5:14 pm
Car: 89 240sx ka24de 5spd
90 240sx ka24de RIP

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in the end the problems were faulty injectors along with a bad fuel pressure gauge resulting in low fuel pressure.


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