trouble / error codes - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

sscharged · 03-24-2011, 01:45 AM

a check engin light just came up in my car i'm worried what are they for

P0851 AND P219B can some one please help my with them

thanks

kmcd · 03-24-2011, 02:07 AM

P0851 - Park/Neutral Switch Input Circuit Low

kmcd · 03-24-2011, 02:09 AM

P219B

kmcd · 03-24-2011, 02:12 AM

Stand by - I did find this:

Cylinder (Air-Fuel Ratio) Imbalance DTC P219A / P219B = Bank 1 AFR Imbalance / Bank 2 AFR Imbalance.
ECM monitors the Difference in A/F Ratio between each Cylinder on Bank1 / on Bank 2.

This means that air fuel ratio on one bank compared to the other is not equal.

The first thing to do is to reset the code and see if it returns because these are often false alarms.

Read more: Chevy Questions - Chevrolet Camaro SS 2010 camaro L99 auto. P219B Code what - JustAnswer http://www.justanswer.com/chevy/4b4o...#ixzz1HUyrgSEH

I hope this helps.

sscharged · 03-24-2011, 02:23 AM

thanks

but what should i do with the first one what does it mean ??

i dono about it !!!!

kmcd · 03-24-2011, 02:41 AM

I'm not sure, but I think because that switch is shorted to ground, you can actually engage the starter while your car is in gear. You could test it, but you want to make sure there's nothing around your car before bumping the key to the start position.

Or you could just take it to the dealer. That's probably the better option if it's under warranty.

kmcd · 03-24-2011, 02:43 AM

Then again, it could be the parking brake switch. Does the parking brake light come on when you have it engaged?

Dfault · 06-21-2014, 09:49 AM

What if the air fuel code returns? My car is doing this now. I erased the code and it came back. Seems to be a bank 1 code.

Leozl1 · 11-14-2016, 10:46 AM

I'm having the same problem p219a and p219b came on my zl1 after I installed upper pulley, tb, injectors, CAI AND a tune. Idk what's causing it to do that my tuner couldn't figure it out.

thiggin2 · 11-14-2016, 06:15 PM

He's a .pdf for the codes.

03-24-2011, 01:45 AM	#1
sscharged Drives: Camaro 1ss manual 6.2L V8 Join Date: Nov 2010 Location: arlington, VA Posts: 5	trouble / error codes a check engin light just came up in my car i'm worried what are they for P0851 AND P219B can some one please help my with them thanks

03-24-2011, 02:07 AM	#2
kmcd 1,425 hp / supercharged Drives: (2010 2SS/L99) (1999 Corvette) Join Date: Oct 2009 Location: Austin, TX Posts: 1,104	P0851 - Park/Neutral Switch Input Circuit Low __________________ "If it's too loud...well, you know the rest."

03-24-2011, 02:09 AM	#3
kmcd 1,425 hp / supercharged Drives: (2010 2SS/L99) (1999 Corvette) Join Date: Oct 2009 Location: Austin, TX Posts: 1,104	P219B __________________ "If it's too loud...well, you know the rest."

03-24-2011, 02:12 AM	#4
kmcd 1,425 hp / supercharged Drives: (2010 2SS/L99) (1999 Corvette) Join Date: Oct 2009 Location: Austin, TX Posts: 1,104	Stand by - I did find this: Cylinder (Air-Fuel Ratio) Imbalance DTC P219A / P219B = Bank 1 AFR Imbalance / Bank 2 AFR Imbalance. ECM monitors the Difference in A/F Ratio between each Cylinder on Bank1 / on Bank 2. This means that air fuel ratio on one bank compared to the other is not equal. The first thing to do is to reset the code and see if it returns because these are often false alarms. Read more: Chevy Questions - Chevrolet Camaro SS 2010 camaro L99 auto. P219B Code what - JustAnswer http://www.justanswer.com/chevy/4b4o...#ixzz1HUyrgSEH I hope this helps. __________________ "If it's too loud...well, you know the rest."

03-24-2011, 02:41 AM	#6
kmcd 1,425 hp / supercharged Drives: (2010 2SS/L99) (1999 Corvette) Join Date: Oct 2009 Location: Austin, TX Posts: 1,104	I'm not sure, but I think because that switch is shorted to ground, you can actually engage the starter while your car is in gear. You could test it, but you want to make sure there's nothing around your car before bumping the key to the start position. Or you could just take it to the dealer. That's probably the better option if it's under warranty. __________________ "If it's too loud...well, you know the rest."

03-24-2011, 02:23 AM	#5
sscharged Drives: Camaro 1ss manual 6.2L V8 Join Date: Nov 2010 Location: arlington, VA Posts: 5	thanks but what should i do with the first one what does it mean ?? i dono about it !!!!

03-24-2011, 02:43 AM	#7
kmcd 1,425 hp / supercharged Drives: (2010 2SS/L99) (1999 Corvette) Join Date: Oct 2009 Location: Austin, TX Posts: 1,104	Then again, it could be the parking brake switch. Does the parking brake light come on when you have it engaged? __________________ "If it's too loud...well, you know the rest."

06-21-2014, 09:49 AM	#8
Dfault Drives: 2014 Camaro SS Join Date: Sep 2013 Location: Waco, TX Posts: 989	What if the air fuel code returns? My car is doing this now. I erased the code and it came back. Seems to be a bank 1 code.

11-14-2016, 10:46 AM	#9
Leozl1 Drives: 2013 zl1 stock. Join Date: Sep 2016 Location: Houston Posts: 1	I'm having the same problem p219a and p219b came on my zl1 after I installed upper pulley, tb, injectors, CAI AND a tune. Idk what's causing it to do that my tuner couldn't figure it out.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
trouble with factory ground effects	mag	Camaro Convertible Forum	4	03-17-2011 04:34 PM
Are the V-6 Camaros with Auto. Trannys. trouble free ?	wbyman	5th Gen Camaro SS LS LT General Discussions	23	01-23-2011 10:52 PM
What Trouble Code is this?	Jeanius	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	5	04-11-2010 10:54 AM
Trouble taking key out on NEW 2010!!!	scajc	Mechanical Maintenance: Break-in / Oil & Fluids / Servicing	12	07-20-2009 11:11 AM
Big Trouble in Japan	Captain Awesome	General Automotive + Other Cars Discussion	3	01-01-2009 09:44 PM