Superchips 03 Tahoe

[Murph711]

I recently used a Superchips controller to change my programming on my 03 Tahoe. After doing this it started diing on me so I put the Stock program back in and it is still dying and seems to be getting worse. It doesn't want to Idle it just wants to die. It seems to get better after the engine gets up to temperature.

I had a code come up a few weeks ago. P0101 Mass Air Flow Circuit Range/Performance Problem. Could this be the real problem and just a coincidense that it showed up when I used the Superchips module.

[GM-Tech]

A MAF problem could definitely cause what's happening. Do you have a K&N filter by any chance? An over oiled filter can cause MAF problems.

[Murph711]

A MAF problem could definitely cause what's happening.  Do you have a K&N filter by any chance?  An over oiled filter can cause MAF problems.

 

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I do have a K&N but it has been several months since it was re-oiled. When I looked at the MAF sensor everything looked OK as far as not having large amounts of oil buildup or anything. Could the K&N oil have ruined the MAF sensor?

[3500in nc]

A MAF problem could definitely cause what's happening.  Do you have a K&N filter by any chance?  An over oiled filter can cause MAF problems.

 

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I do have a K&N but it has been several months since it was re-oiled. When I looked at the MAF sensor everything looked OK as far as not having large amounts of oil buildup or anything. Could the K&N oil have ruined the MAF sensor?

 

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ive gotten that code alot and it was always just a lose air intake pipe around the TB look there first then make sure the clamps are tight

[GM-Tech]

When I looked at the MAF sensor everything looked OK as far as not having large amounts of oil buildup or anything.  Could the K&N oil have ruined the MAF sensor?

 

It's extremely unlikely that a failure is something you are going to see by just eyeballing it.

 

 

 

Info - Automatic Transmission Shift, Engine Driveability Concerns or Service Engine Soon (SES) Light On as a Result of the Use of an Excessively/Over-Oiled Aftermarket, Reusable Air Filter #04-07-30-013A - (Jan 25, 2005)

 

2005 and Prior GM Cars and Light Duty Trucks

 

2005 and Prior Saturn Models

 

2003-2005 HUMMER H2

 

This bulletin is being revised to add additional model years and to clarify warranty coverage. Please discard Corporate Bulletin Number 04-07-30-013 (Section 07 -- Transmission/Transaxle).

 

DO THIS

DON'T DO THIS

 

First, Inspect the vehicle for a reusable aftermarket excessivelyover- oiled air filter

DO NOT repair MAF sensors under warranty if concerns result from the use of an excessively/over-oiled aftermarket, reusable air filter.

 

 

The use of an excessively/over-oiled aftermarket, reusable air filter may result in:

• Service Engine Soon (SES) Light On

 

• Transmission shift concerns, slipping and damaged clutch(es) or band(s)

 

• Engine driveability concerns, poor acceleration from a stop, limited engine RPM range

 

The oil that is used on these air filter elements may be transferred onto the Mass Air Flow (MAF) sensor causing contamination of the sensor. As a result, the Grams per Second (GPS) signal from the MAF may be low and any or all of the concerns listed above may occur.

 

When servicing a vehicle with any of these concerns, be sure to check for the presence of an aftermarket reusable, excessively/over- oiled air filter. The MAF, GPS reading should be compared to a like vehicle with an OEM air box and filter under the same driving conditions to verify the concern.

 

The use of an aftermarket reusable air filter DOES NOT void the vehicle's warranty.

 

If an aftermarket reusable air filter is used, technicians should inspect the MAF sensor element and the air induction hose for contamination of oil prior to making warranty repairs.

 

Transmission or engine driveability concerns (related to the MAF sensor being contaminated with oil) that are the result of the use of an aftermarket reusable, excessively/over-oiled air filter are not considered to be warrantable repair items.

 

 

 

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.

WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

 

 

© Copyright General Motors Corporation. All Rights Reserved.

[Murph711]

What should the Grams per Second be on a Tahoe? With my PDA I can check the MAF temp, Grams per Second and so on. Can the MAF sensor be cleaned with anything like Acetone or something that doesn't leave a residue?

[GM-Tech]

The spec is 1-9 grams per second at idle, which leaves a lot of room. I hear guys say they clean it with some sort of spray, but we don't do that in service. If it's not right, it's replaced.