koumatae

93 Civic w/ B18C1. The only modification is Skunk2 Intake Manifold. Everything else is stock. So when i did the swap it was running rich; Black smoke on bumper. I Reset the ecu and it was still running rich. Due to school and work, i have to time to fix. I drove the car running rich for about a month and now its burning oil; Blue smoke from muffler. I need to know what happen between running rich and burning oil. How does running rich leads to burning oil?

Cylinder 1

Cylinder 2

Cylinder 3

Cylinder 4

B_Swapped93

how many miles on you'r engine ? when i put the s2 mani on my GS-R it started to ran seriously rich i only wish my plugs looked like your's mine you can't even see white just pure black with lots of carbon build up.

Mishako129

So why did the S2 IM cause your cars to run rich?

jbpnoman

Running an engine rich can wash the cylinders, which messed up the rings. Messed up rings cause burning oil.

vitamin_c95

this...

98civdx

Came here to say this.

beecee18

borewash....

re-ring
re-hone

koumatae

thanks everyone. you guys been big help.

koumatae

is there any way i can prevent from oil burning as of now?

beecee18

jbpnoman

No. You need to pull the rotating assembly and have a machine shop hone the block. You then need to replace the rings while reassembling the motor. While you have it all apart, you might as well replace the main bearings. You can get away without pulling the rod bearings, though.

koumatae

is it just me or does it seem like im burning oil only in vtec? i research on the topic "gsr burning oil in vtec" and it says something about "valve seals". correct me if im wrong. Please help. i dont want to do any more damage to my engine. the video shows smoke starting at 0:30-0:38

cesarrpha

Running an engine rich can wash the cylinders

Hyassine

I changed my oxygen sensor on my 1993 honda civic hatchback dual carb but the light on the dash still on is there more then one oxygen sensor?

B_Swapped93

1,are you obd2 or obd1 as obd2 will have two o2 sensors. 2nd did you re-set the ECU to clear codes

Pistonman

Why would you do all that work and not replace rod bearings?

koumatae

anyone know anything about "burning oil in vtec"