I am getting codes PO 128, PO 300 and PO 506 on my chevy Impala, 2002, LS 3.8

Aqu? tienes el diagrama de encendido para un Chevy Impala LS del a?o 2008 con motor de 3.5 litros:

Frente del veh?culo
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2 4 6 1 3 5
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? ? ? ? ? ?
BOBINA 2 BOBINA 3
? ?
? ?
BUJ?A 2 BUJ?A 3
? ?
? ?
BOBINA 1 BOBINA 4
? ?
? ?
BUJ?A 1 BUJ?A 4
? ?
? ?
BOBINA 6 BOBINA 5
? ?
? ?
BUJ?A 6 BUJ?A 5
Recuerda que este diagrama representa la secuencia de encendido de las bobinas y buj?as en un motor de 6 cilindros. Aseg?rate de seguir las recomendaciones del fabricante en cuanto a las especificaciones de las buj?as y los intervalos de mantenimiento para garantizar un funcionamiento ?ptimo de tu Chevy Impala LS 2008.

Google it. Links won't post but there is tons of info on that engine. Users 3 packs that sit beside each other. Firing order 1 6 5 4 3 2
coils are from front to back 1 4 5 2 3 6

2005 Chevy Impala 3.8Liter - YouTube

? 3:51
https://www.youtube.com/watch?v=pq2DoQq6q0A
Apr 18, 2014 - Uploaded by DerrickTheMechanic
How to change them out.And what they ... 2005 Chevy Impala3.8Liter ... Heater core information, coolant leak, bypass,replacement, hoses, etc.

How To Change A Heater Core - Part 2 of 2 - YouTube

? 3:12
https://www.youtube.com/watch?v=OFxQJXWszs8
Jun 19, 2013 - Uploaded by klowny1969
How To Change A Heater Core - Part 2 of 2. klowny1969 ...Impala . Caprice . Nova . Biscayne . Corvette . Denali . Landcruiser . ... Chevrolet 1500 * 2500 Truck * Heater Core Replacement * Gasoline * 1997 - Duration: 11:59. images for 2005 Chevrolet Chevrolet Impala LS ...

Check the vacuum hoses for a leak.

2006 Chevy Impala LS 3.5L Surge Under Load - YouTube

? 3:09
www.youtube.com/watch?v=sD-swFhMORM
Jan 22, 2013 - Uploaded by Gary Castle, Jr
Surge while driving. ... 2006 Chevy Impala LS 3.5L Surge Under Load ... How To Fix Or Prevent Stalling, Surging Or Rough Idle, Cleaning ...

Put in your search engine , Recalls on a 2002 Chevy Impala LS it will bring up quite a few good sites to pick from. They were more recalls then I could put down here.

under car towards rear of vehicle

For the 2000 Chevrolet Impala 3.8L V6:

Firing Order:
1-6-5-4-3-2

Cylinders:
.....(back).....
|...2...4...6...|
___________
|...1...3...5...|
.....(front)

Ignition Coil Connections:
(back)
o <---6
___
o <---3
o <---2
___
o <---5
o <---4
___
o <---1
(front)

Let me know if this helped, or if you have additional information or questions. Feel free to contact me at FixYa.com!

replace all wires and plugs with ac delco parts only iradium plugs only!!

That is a hard problem to pin point without knowing what codes the computer has stored. It can be any number or sensors or engine problems.

You can go to most auto parts stores and they will pull the codes for you for free.

ABS Sensor? Ne SES codes
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