Bob McGuire Posted on Apr 25, 2014

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I have a 2007 CHevy Impala 3.5 lt engine. The engine light came on and we checked the codes and the code came up $7E8 and $7EA. we believe these are generic codes and the $ could be optional

Do you have any idea what these codes could be

2 Answers

larry smith

Expert 49 Answers
Posted on Aug 05, 2016

larry smith

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That is what they call a "generic" code. Some OBD11 or OBD2, "same thing", scanners will give a $7E8 and $7EA. together and maybe a $7E9.
These are for a sub menu. Click on each one separately and you should or might get a regular "P0" code if your scanner
has the supported module. If not either get a better scanner or
go to a "big box" auto parts store and they will scan it for free and
should be able to give you more information.
Please leave comment or feedback if helpful.
Larry

Lodhi Autos

Chevrolet Master 992 Answers
Posted on Apr 25, 2014

Lodhi Autos

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Joined: Feb 03, 2013

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7E8, 7EA. Cat failure.
- Check the health of catalytic converter.
- Check for cracks in muffler.
- Check air leaks.
- Check back pressure of the tail pipe.

5 Related Answers

Anonymous

1 Answer
Posted on Jan 18, 2009

SOURCE: Chevy impala diagnostic code PO742

i have the same problem, what can i do to fix it?

Anonymous

290 Answers
Posted on Apr 04, 2009

SOURCE: 2001 chevy impala has a P0420 code and a check

A code P0420 may mean that one or more of the following has happened:

An oxygen sensor is not reading (functioning) properly
The engine coolant temperature sensor is not working properly
Damaged or leaking exhaust manifold / catalytic converter / exhaust pipe
Retarded spark timing

Anonymous

145 Answers
Posted on May 07, 2009

SOURCE: check engine light on

You cannot reset the check engine light any other way than using a scan tool. Some auto parts stores will scan the vehicle for free then at least you will know the area of the fault.

Anonymous

1959 Answers
Posted on May 23, 2009

SOURCE: PO481 code Chevy IMPALA 2003

Looked it up in Chilton's, confirmed in http://www.obd-codes.com/trouble_codes/

P0481 Cooling Fan 2 Control Circuit Malfunction

Each fan will throw a different code. See 3 fans listed for your model. Here's a link for the wiring schematic: http://www.chiltonlibrary.com/content/images/WD/GM/014/WD_GM_014788.pdf

Best of luck.
Greg

Anonymous

466 Answers
Posted on Aug 30, 2009

SOURCE: chevy malibu check engine light on code P1665 what

P1665 Evap vent solenoid control circuit

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2007 Chevy Cobalt LT Sedan P0304 Misfire

I would say you have more that one code fault and they just used a cheap scan tool. You need an auto electrician with a pro grade scan tool computer. That is the only thing that can diagnose the engine speed sensor.

https://www.google.com/search?q=auto+electrician+near+me

What the P0304 code means. The P0304 code will be seen in cars where the ECU has detected that cylinder 4 is not firing properly. The ECU monitors the operation of all cylinders to ensure they are all firing on time, so when one misfires repeatedly, a Check Engine Light is set.