[Z06] Stumbling at low rpms, erratic idle, loss of high RPM power

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05-01-2011, 10:25 PM

#21

Joe_G

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Member Since: Jul 2002

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St. Jude Donor '08

Quote:

Originally Posted by Geared

joe,

i doubt he turned it off, but its possible....i used a cheap scan tool that may not have properly read the computer - it was the loan a tool scanner from advance auto parts

jb

If you have a big cam, sometimes tuners turn off this code as a lopey idle can sometimes set the code.

Glad you're back running well

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05-01-2011, 11:41 PM

#22

Geared

Melting Slicks

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no cam.

thanks for all the help

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05-02-2011, 02:41 AM

#23

Luweegy

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Location: Grand Junction Colorado

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Quote:

Originally Posted by Geared

I found this.....could this be the culprit, and cause the about described symptoms?

Spark plug wires boot, driver side was laying on header (like alot of people) and while trying to diagnose this issue, I had the car running....and

a small spark occured when I lightly lifted that wire (it touched header)...and I came to find out the boot is cracked.

Could this be it?

How could this cause a near 50% power drop all of a sudden at high rpm?

That looks like the problm rt there.I'll bet there is more than 1 wire that is doing that.

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05-02-2011, 03:06 PM

#24

Chevy Cust Svc

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Very glad to see that you figured it out! Congrats!

Thanks for the photos too, they help to get an idea of what you were looking at.

Brent
GM Customer Service