Berk's HFC dyno video on VQ35HR...
02-28-2008, 11:20 PM
#39
Here's how it to do it:
1) Buy a set of 18mm Spark Plug Anti Foul Adaptors from the autoparts store. they come in a pair in the little red "Help" packages. These things are designed for cars that are burning oil and fouling it's plugs.
2) Drill out the small hole of one of the plugs to 1/2" diameter. This will allow the O2 sensor to screw into the plug while a tiny bit of room surrounding the sensor.
3) Screw either 1 or both adaptors together into the 2nd O2 bug on the cat back. Carefully screw the O2 sensor in. Don't overtighten since the adaptors are now pretty thin walled due to the 1/2" drilling.
1) Buy a set of 18mm Spark Plug Anti Foul Adaptors from the autoparts store. they come in a pair in the little red "Help" packages. These things are designed for cars that are burning oil and fouling it's plugs.
2) Drill out the small hole of one of the plugs to 1/2" diameter. This will allow the O2 sensor to screw into the plug while a tiny bit of room surrounding the sensor.
3) Screw either 1 or both adaptors together into the 2nd O2 bug on the cat back. Carefully screw the O2 sensor in. Don't overtighten since the adaptors are now pretty thin walled due to the 1/2" drilling.
02-29-2008, 12:08 AM
#41
here is the fix for the cel.... first pic is the two plug adapters. the one on the left bottom is the one that is drilled out. the other is normal
Second pic shows the drilled adapter screwed on and how it hides the 02 sensor from the excess gases because of no cat.
Third pic shows both adapters installed both the drilled first and the non drilled second.
Fourth pic is the o2 screwed back into the TP.
Second pic shows the drilled adapter screwed on and how it hides the 02 sensor from the excess gases because of no cat.
Third pic shows both adapters installed both the drilled first and the non drilled second.
Fourth pic is the o2 screwed back into the TP.
02-29-2008, 12:12 AM
#42
Its a very simple fix. the idea is the secondary o2 sensor reads the gases coming from the cats. when it senses that it is reading too much of some gas i.e. because there is no more cats with tp it throws the cel. The bug places the o2 sensor not only farther away from the gases flowing through but also reduces the amount of gases it can sense which in turn makes the ecu think everything is running normal and fine. so no cel. works everytime...
