I put on a dual cone intake system and the first time out the check engine light came on. I made a couple of stops and each time I restarted, the light was still on. Can anyone explain the reason to me in laymans terms please? Any input would be appreciated.

 

use this to pull up the Codes in your D.I.C. that are causing your C.E.L. to come on...and tell us the codes you see, then we can better diagnose your problem:

with the key in the on position, but the engine not running
push and release the reset button until all messages cleared
next push and HOLD button #4
next push and release button #1 four times while holding button #4
When first engaged the on-board diagnostics go into an "automatic" mode which shows all parameters: PCM-TCS-RTD-BCM-IPC-radio-HVAC-LDCM-RDCM-SCM-RFA. If there are no problems, you will see "no more codes" on the ICP display. The computer will show two kinds of codes, "current" and "history," designated "C" or "H". A current code indicates a malfunction is present in the system whose module is displaying data. A history code indicates a past problem. When the screen displays "manual diagnostics," select the desired module by pressing the "options" button to go forward or the "trip" button to go back. Press "gages" to go forward or "fuel" to go back. To exit the diagnostic mode at any time, press "E/M".
If you want to erase or "clear" codes, press "reset."

 

Here are some more information about DTCs and reading DTCs:

READING YOUR Engine Diagnostic Codes

The Diagnostic Display Mode is entered with the following procedure:
1) Turn on the ignition but don't start the engine.
2) Press the RESET button to turn off any warning messages. (i.e. door open, trunk open ect)
3) Press and hold OPTIONS
4) While holding OPTIONS, press FUEL four times within a 10-second period.

Initially, on-board diagnostics go into an Automatic Mode which shows diagnostic codes in a pre-set sequence: PCM - TCS - RTD - BCM - IPC - RADIO - HVAC - LDCM - RDCM - SCM - RFA. All codes will be displayed for each. ( i.e. PCM = 4 codes)
If none are present in a given module, you will see No More Codes on the display.
There are two kinds of diagnostic codes, Current and History designated with a letter suffix, C or ;H. A current code indicates a malfunction is present in the module displaying data. A history code indicates a problem existed sometime in the last 40 or 50 ignition cycles. When not accompanied by a current code of the same number, it's potential evidence of a previous problem, now resolved, that was not removed by clearing the codes.
More likely it's an indication of an intermittent malfunction.
Intermittent codes are the most challenging of the diagnostics. An intermittent code may have happened once, may have happened more than once but is inconsistent or may be happening on a regular basis but not at the time the codes are displayed. History codes can also be caused by a current malfunction in a system that is not operating at the time codes are displayed. An example is the rear window defogger which doesn't operate until the Body Control Module detects engine rpm. For history codes set by a module that does not operate with the key on and engine off, a special diagnostic tool called a Scan Tester is necessary to properly diagnose the malfunction.
Once the system has displayed all modules, it goes into the manual mode which allows selection of each module using combinations of Driver Information Center buttons. Manual mode can also be entered during the automatic sequence by pressing any button except E/M. Once the display shows Manual Diagnostics, select a module by pressing the OPTIONS button to go forward or the TRIP button to go back. Once a module is selected, a code is displayed, and if more than one are present;
press GAGES to go forward or FUEL to go back.
To exit the diagnostic mode at any time, press E/M. If you want to erase codes in a given module, press RESET
To reset the codes once in manual mode, press and hold RESET until it displays NO CODES Press OPTIONS to go to the next module. Repeat the steps until you have reset the codes in all the computer modules.
NOTE!! Only reset the codes IF you want to - it is NOT necessary to do this. Clearing a code does not repair a problem. You are simply erasing the evidence of it in the module's memory. If you clear the code/s, and extinguish the Check Engine Light, your emissions status ready will NOT allow you to pass an emissions test until you have completed the required driving cycles.
Once you have the codes, the next question is: What to do with the information?
First, consult the factory service manual. Any serious C5 Do-It-Yourself owner should invest in the Corvette Service Manual of the appropriate model year. The Service Manual is really a requirement if you want to understand and work on your C5.

These are the absolute best C5 Diagnostic Trouble Code (DTC) explanation web sites!!!

http://www.corvettedoctor.com/Code_Main.html
http://www.corvettedoctor.com/index.html


Go to “technical data base” and then to “Corvette ECM Computer Codes”. Then select your year car. Read the instructions and then scroll down to the "READ MORE" window to view the code definitions.\

Here is another very good site:

http://www.obd-codes.com/trouble_cod...d-ii-codes.php

Make sure to include the H or C suffix!!

 

Thanks for the help. Everything went as you said. I came up with 10PCM and 60IPC. The people at Midwest Corvette said that there is no way to get the check engine icon off the display because of the after market air-intake system. Hard to believe.

 

Your still not getting the code, the 10PCM should be followed by a code that looks like this: P-xxxx (the x's will be numbers), this is your actual code that is causing the check engine light.

 

OK, as the engine pulls air into the induction system, it passes through a measuring device called the MAF (Mass Air Flow) sensor. The sensor is located just behind the air filter.

The sensor reports the weight (mass) of the air passing through by using heated wires stretched across the flow of air. As the amount of air increases, the wires cool, and the resistance to electrical flow through the wires changes. The "resistance" is reported to the PCM as a frequency signal, and the PCM then looks up that reading (say 5000 Hz) and says ... oh ... that's 14 grams of air per second so I'll fire the injectors for X amount of time to get a correct Air/Fuel mix."

After the fuel is burned, the PCM looks at the remaining oxygen (O2) in the exhaust (using the heated O2 sensors) to double check that the A/F mixture was correct.

In your case, the alterations you performed to the intake system are causing the MAF to report an "incorrect" frequency. An example, the air flowing through the MAF may now be more turbulent that before, and that changes the temperature of the wires, while not neccesarily changing the actual amount of air flowing through. The PCM sees an unexpected "error" because it is injecting the wrong amount of fuel based on the MAF reading, and is then seeing (most commonly) an overly lean condition in the exhaust ... so it turns on the MIL.

You will either need to go to a tuner who will have to re-calibrate the MAF table in the PCM, or return the intake to stock. Dump the codes to be sure, but I'll bet you're getting something like a P0171.

As Runamuk said, you did not post the codes .... they will be a Pxxxx from the PCM .... the IPC is probably a Uxxxx ...... and as above, the folks at Midwest Corvette are probably correct.

 

I had the same thing happen. Make sure all connections are tight and that the filter isnt able to move side to side. Check your maf wires carefully they are brittle and can break or come loose. My light isnt on any more

 

i would also try disconnecting the negative battery terminal for 15 minutes then reconnect.