I get this code and it really racking my brain...p1516..well my c6 does this....when I crank it up it runs fine,idled fine like a normal car...its a cam modded car but out of the blue it started this..but when I pull off no lights r anything but after about 2 minutes of driving...the brake light comes on the and light and the traction control light....the these words start to show up..service traction control,service active handling,service abs then the car immediately starts bucking real hard pedal stops working properly until I press my traction control button the it stops all that and it drives fine....now here's the other prob if I floor the car and hold my foot down for about 4 seconds it shuts down ,throws reduce engine power and starts to sound like a boat and the infamous p01516 is rite there... So once the cut the car off for s few min...I crank it back up and it sounds back regular..I just have to hit my traction button before I really get going....does anyone know what my issue could be???

 

P1516 affects the ECMs ability to control torque so it tells the EBCM that it cannot perform its part of the Traction Control function so the EBCM displays the messages you see. To get rid of them you have to solve the P1516 issue.

In addition to the procedure I posted in another thread here are a couple of other things to look at.

Here are a couple of TSBs related to P1516:
#PIP3786B: SES Light And/Or Oil In Air Intake System - Inspect Air Intake Hydrocarbon Absorber - (Aug 7, 2008)

Subject: SES Light and/or Oil In Air Intake System - Inspect Air Intake Hydrocarbon Absorber

Models: 2006-2009 Chevrolet Corvette with 7.0L Engine (RPO LS7)

2008 - 2009 Chevrolet Corvette with 6.2L Engine (RPO LS3)

2009 Chevrolet Corvette with 6.2L Supercharged Engine (RPO LS9)

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This PI was superseded to update model years and engine usage. Please discard PIP3786A.


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The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
Some customers may complain of a SES light. Upon inspection, oil in the air cleaner, a loose hydrocarbon patch in the air intake snorkel, and/or DTCs P0101, P0172, P0175, P1516, and/or P2176 may be found. This may be a result of an improper oil level or PCV restriction, which can cause excess oil to be forced into the engine air intake snorkel. If this occurs, the oil can contaminate the adhesive that attaches the hydrocarbon absorber to the air intake snorkel, causing the absorber to become mis-positioned, which can alter incoming air flow.

Recommendation/Instructions:
If this concern is encountered, complete the following steps and re-evaluate the concern:

Follow the owner's manual for proper engine oil filling procedures. For 7.0L LS7 models, also review the latest version of 05-06-01-032.
Perform the Crankcase Ventilation System Inspection/Diagnosis in SI to ensure that the PCV system is operating properly with no restrictions.
If equipped with an oil tank, ensure that the semi-fresh and fresh PCV tubes are installed correctly. The fresh PCV tube is attached to the front port of the oil tank, and the semi-fresh tube is attached to the rear port of the oil tank.
Clean excessive oil from the air intake system and inspect the hydrocarbon absorber in the air intake snorkel. Replace the air intake snorkel if the hydrocarbon absorber is mis-positioned or loose.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

#PIP3089B: SES Light And Reduced Engine Power DTC P0120 P0220 P1516 P2135 - keywords accelerator actuator APP blade body connector connection DTC L33 L59 LH6 LR4 LM7 LS1 LS2 LQ4 LQ9 module position reduce sensor - (Oct 31, 2006)

Subject: SES Light and Reduced Engine Power DTC P0120 P0220 P1516 P2135

Models: 2004-2006 Buick Rainer

2005-2006 Cadillac CTS-V

2003-2006 Cadillac Escalade

2003-2006 Chevrolet Avalanche, Corvette, Express, Monte Carlo, Silverado, SSR, Suburban, Tahoe, Trailblazer

2003-2006 GMC Envoy, Savana, Sierra, Yukon

2003-2006 Hummer H2

2005-2006 Pontiac GTO

Equipped with a 4.8 5.3 6.0 or 7.0 V-8 Engine
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The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
A vehicle may be brought into the dealer for a reduced power message, and DTCs P0120, P0220, P1516, P2101, or P2135.

The Throttle Actuator Control (TAC) / throttle body type trouble codes, may be caused by a loose wiring crimp at the throttle body connector, or a broken throttle body circuit.

Recommendation/Instructions:
Complete the current SI diagnostics for any symptoms or trouble codes found. If a intermittent T/P or TAC module type code is occurring complete the inspections below.

Inspect all related throttle body terminals for a loose wiring crimp. The loose crimp may be difficult to find, and the poor connection will be between the terminal and the copper strands of the wire. Wiggle test the individual throttle body circuits to see if the concern can be duplicated.
Inspect the related circuits for broken wires inside the insulation. The outer wire insulation may look fine, but the internal copper strands may be partially broken. Breaks in the wires usually occur within 1 to 4 inches of the throttle body connector. Wiggle testing may also induce a trouble code to set.
On C/K trucks complete SI procedures for voltage drop on grounds G103 and G104. Grounds G103 or G104 may be loose or corroded.
If a terminal crimp or a broken wire has been found, repair or replace only the circuits involved. There is a throttle body pigtail connector available through GMSPO, but installing this pigtail connector may cause other intermittent TAC module/TP codes at a later date. If this pigtail must be used, please follow the SI procedures for Splicing Copper Wire Using Splice Sleeves. (the proper Kent-Moore crimping tool must be used for this repair)

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

You will not find a magic solution you have to follow procedures and diagnose what is happening.

Bill

 

Hydrocarbon absorber? Where is that located and how would an oiled filter such as a K&N affect it?

 

It loos like construction paper in the airbox, if you still have the stock airbox.

It stops the hydro carbons from coming out of the intake into the atmosphere when the engine is off.

 

OK. Haven't checked to see what it looks like yet, but I wonder if removing it would help airflow.

 

I have a vararam intake on the car...

 

Did you over oil your filter perhaps?

Try cleaning your MAF with Maf cleaner (don't use anything else, the MAF is sensitive) and cleaning the filter and applying the right amount of oil (which isn't much, a little goes a long way.

 

That might do it. Too much oil on one of the reusable filters can cause issues with the MAF. That is why GM says they may not cover MAF repairs on vehicles with oiled filters.

Bill

 

P.S. if this is your worst nightmare, can I swap problems with you?

 

just had the car exhibiting a very rough running engine at idle and running. Sounds like a heavy miss or something with the traction control or over rev safety issue. Traction control error came on the screen and the engine light came on. Anything you would recommend to check?

 

Would a ported throttlebody throw this code

 

yes if the blade is binding up. damge may have been done when porting.

 

Lots of people ruined their throttle bodies trying to port them.