Need help with DME Codes

[Cattman]

Loren, or anyone else, how do you interpret these Durametric fault codes:

P2187

Oxy. sensor control adapt. RKAT

bank 1 range near idle speed

P2177

Mixture adaptation checksum

error bank 1

P2189

Oxy. sensor control adapt. RKAT

bank 2 range near idle speed

P2179

Mixture adaptation checksum

error bank 2

I am running a Supercharger with AWE cats and the IPD Plenum.

CATTMAN

[PAULSPEED]

My brother just had his supercharger removed. His

car was blowing oil into the carberator. The power

of the superchager had blow out the filter in his oil seperator.

You need to drop the motor to get to the oil seperator. I sugest

you remove the hose with the MAF sensor.

Your error codes look like oil on the MAF sensor but I do

not know for sure.

Paul

[Cattman]

My brother just had his supercharger removed. His

car was blowing oil into the carberator. The power

of the superchager had blow out the filter in his oil seperator.

You need to drop the motor to get to the oil seperator. I sugest

you remove the hose with the MAF sensor.

Your error codes look like oil on the MAF sensor but I do

not know for sure.

Paul

Carburator? These cars don't have carburators, they are fuel injected.

FWIW, I am using an oil catch can from the driver's side crank case vent hose, so nothing is going back into the intake and recirculating. The MAF is clean. In anycase, the oil separator can be reached without dropping the motor- you just have to remove the throttle body, plenum, and distributor. I did the whole SC installation myself without dropping the motor, including swapping in larger injectors.

Anyone else have a thought on this? The more research I do, the more I see that these 2 fault codes are common, and may relate to a dirty MAF (so I cleaned it), or the IPD Plenum that I am running. I will put the OEM plenum back, and with the newly cleaned MAF expect that these faults won't reappear.

CATTMAN

[PAULSPEED]

Sounds like your a smart man for not passing the

oil by-pass into the throttle body.

I meant throtle body even though I said carberator.

Did you use something strong like Carberator cleaner to clean the

MAF sensor. Most cleaners will not do the job.

Paul

[Cattman]

Sounds like your a smart man for not passing the

oil by-pass into the throttle body.

I meant throtle body even though I said carberator.

Did you use something strong like Carberator cleaner to clean the

MAF sensor. Most cleaners will not do the job.

Paul

The throttle body in a 997 allows/ determines how much air is allowed into the system. A carburator is for fuel intake. Air and fuel are supplied separately. In a fuel injected vehicle, the fuel injectors, linked to the fuel pump and ECU determine/ allow fuel into the chamber. The throttle body is for air. They work together via ECU programming to create the correct AFR mixture for ideal combustion.

Not sure what you mean by "not passing the oil by-pass into the throttle body."

The oil supply is one thing: my SC shares oil with the engine . I tap into the driver's side oil galley, and vent downstream to the SC, out and down by gravity into the passenger side oil galley.

The bypass valve lives downstream of the throttlebody. From the throttlebody it has a T into the crank case vent tube (to push crap through, in my case to the oil catch can), and into the diverter valve, which is part of the air intake. This is all about air.

Are you saying the there is enough junk after the throttle body that is getting forced down the bypass valve, into the diverter, and back into the air supply pre-charger?

CATTMAN

[PAULSPEED]

What I am saying is that the oil-seperator by-pass on my

brothers car was piped just past the MAF sensor but before the

air control valve. The supercharger had so much pressure that

some of that pressure went into the crankcase. The crankcase

pressure blew out the filter in the oil seperator. Without the filter,

oil went into the hose between the supercharger and the air

control valve. It made a mess on the MAF sensor and the car

could not start.

I suggest you check your superchager oil line and see if oil is

leaking into the compressor area of your supercharger.

Paul

[PAULSPEED]

The oil that is splashing around in the crankcase is under

pressure. When the pressure is to great, a line on the top of the motor vents to an oil

seperator. The oil seperator seperates the air and oil. The oil drips back into

the motor. The air vents back into the line between the supercharger and the air control

valve.

I would add a couple more oil seperators on this line with little jars that

unscrew for removing the oil.

Something like this.

http://www.lightningforceperformance.com/l...ator-p-477.html

Paul

[Cattman]

Do you have any photos showing where these jars exist/ which lines they are helping remove oil from?

This is the part I don't follow:

"The air vents back into the line between the supercharger and the air control

valve."

The air to the SC comes from one place. It comes from the K&N cone filter, past the MAF, through the intake tube, and into the SC's impeller. The oil for the SC comes from the driver's side oil galley, and drains down back into the engine through the passenger's side oil galley. The CCV (crank case vent tube) tube on the driver's side goes to my oil catch can.

You are talking about the passenger side CCV, which with my installation is not changed at all. The CCV comes from the separator, and back down into the block, just as with stock. Are you saying that I need a catch can, or jar, or outlet, on this side?

A pic would help a lot here, since, as you know, the plumbing is complex.

CATTMAN

Edited February 10, 2010 by Cattman

[PAULSPEED]

Here is a picture. I drew a green arrow to where

I think it is. I will send this to my brother and

see what he says.

Paul

[PAULSPEED]

My brother says the following.

The arrow is pointing to one of two fuel injectors that supply the supercharger. The oil sep is a foot or more directly behind your arrow. Also, the diaphram is what blew,not a filter.

Paul

[Cattman]

Thanks, Paul, and thanks to your brother, too. My kit is a VF-Engineering kit, which is totally different.

The fuel injectors in my kit, are simply larger replacements for the stock ones, not a 7th injector, as perhaps is in your bro's kit.

CATTMAN

[vizcarra44]

Thanks, Paul, and thanks to your brother, too. My kit is a VF-Engineering kit, which is totally different.

The fuel injectors in my kit, are simply larger replacements for the stock ones, not a 7th injector, as perhaps is in your bro's kit.

CATTMAN

Edited October 29, 2010 by vizcarra44