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post #16 of 18 (permalink) Old 05-25-2018, 09:54 AM Thread Starter
AZVette
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Location: Southeast Arizona
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Re: Howdy from Arizona

Quote:
Originally Posted by racingvette View Post
C1241 relates to Magna steer, check wiring, grounds or sensor for it and the EBCM
There also maybe be GM TSB for this

Review this thread here
https://www.z06vette.com/forums/f55/h...-codes-123601/''

I would wait and see once battery is replaced if that DTC goes away.
Mike,

Thanks for that link. I'll take a look. My project for this weekend/into next week is to clean all of the ground locations throughout the chassis (as long as the race ramps I ordered show up on time). I have some baking soda, vinegar, hobby files and dielectric grease that I'm going to treat everything with. Any other suggestions?

The battery should be here by the middle of next week. Definitely needs a new battery. Yesterday I had to jump the car while on Fort Huachuca; it had dropped to 9v according to the mobile battery jumper. I've driven it around a bit these past two days and it seems to be holding at 12.3v for now but I don't trust it for lengthy drives just yet.

Thank you again for all of your help.

Regards,
Joel
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post #17 of 18 (permalink) Old 05-25-2018, 02:21 PM
racingvette
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Re: Howdy from Arizona

The ground spice packs for engine are on top of the frame so done from above

Splice are small square metal cans that bolt to frame,
The pack comes apart, not easy as maybe be corroded inside.
Take packs apart, they have make and female pins, cleanup well and use your dielectric grease lightly
then clean the frame where packs bolt bolt on

As a guide look at frame both sides down from headlights and once you see one you'll know what the other 3 look like
Braided ground on left side back of engine assure both ends are clean and tight

Below battery main ground, same clean and tight

Battery must have at least 1 bad / weak cell,
12.3 volts is too low, this causes bad startups and odd DTCs tripping as again all the controllers when engine running need better then 14 plus volts
and do not forget voltage drop so if 12.3 at battery it is lower at controllers as length of wiring

Also assure the ALT is working well and outputs 14 plus volts

Mike M - 2001 / 2008 Z06s
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post #18 of 18 (permalink) Old 05-31-2018, 08:40 AM Thread Starter
AZVette
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Join Date: May 2018
Location: Southeast Arizona
Posts: 11
Re: Howdy from Arizona

Quote:
Originally Posted by racingvette View Post
The ground spice packs for engine are on top of the frame so done from above

Splice are small square metal cans that bolt to frame,
The pack comes apart, not easy as maybe be corroded inside.
Take packs apart, they have make and female pins, cleanup well and use your dielectric grease lightly
then clean the frame where packs bolt bolt on

As a guide look at frame both sides down from headlights and once you see one you'll know what the other 3 look like
Braided ground on left side back of engine assure both ends are clean and tight

Below battery main ground, same clean and tight

Battery must have at least 1 bad / weak cell,
12.3 volts is too low, this causes bad startups and odd DTCs tripping as again all the controllers when engine running need better then 14 plus volts
and do not forget voltage drop so if 12.3 at battery it is lower at controllers as length of wiring

Also assure the ALT is working well and outputs 14 plus volts
Mike,

I got the new battery installed and inspected the area for any corrosion or damaged cables and wiring. Everything was relatively clean, I just wiped it down with some cleaner and made sure everything was nice and tidy. I have yet to inspect the splice packs for the grounds. However, all the codes have cleared except for that one relating to the TCS/Magna Steering. I'll be tackling that after reading up on the other discussion you mentioned.

My 50 meter target for now is to get the lower radiator support re-installed and get the air dams installed as well. I want to make sure the engine is receiving proper air flow to cool and breathe before the Arizona heat takes a toll on it. I have all the large components but it has been difficult finding the GM part numbers for the hardware to attach the radiator support. I suppose a trip down to the Chevy dealership is in order.

Thank you again for all of your help!

Regards,
Joel

Last edited by AZVette; 05-31-2018 at 08:41 AM. Reason: edit
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post #19 of 18 (permalink) Old 06-03-2018, 07:17 AM
Speedratchet
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Re: Howdy from Arizona

Welcome.

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