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I feel like a complete idiot for what I did.
I got a code for injector #3, inspected wiring, saw someone replaced the electrical connectors, and looked iffy to me so I decided to replace their butt connecters and I was so excited to find the issue and fix it.
I wasn't paying attention to the orientation of the wires themselves.
I have a solid red wire and a red wire with a black tracer.
What wire goes to the top and which to the bottom?
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I will try and get a look when I get home.Quote:
Originally Posted by lb7drty
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P0203 & PO208, had a code P2155 but was able to clear that and it has stayed off for now.
Hooked the wires up how I thought they might go, inspected #8 plug in and didn't see anything wrong.
Restarted the truck after repair and no improvement.
It was about 30 degrees outside today with rain & snow, decided to make an appointment at the dealership for tomorrow.
Hopefully they find something quickly as my spare truck needs a transmission swap.
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Codes that came up while I was letting it warm up before I left for work.Quote:
Originally Posted by lb7drty
Attachment 738
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Not to sound jerkish but thanks.Quote:
Originally Posted by lb7drtyCodes that came up while I was letting it warm up before I left for work.Quote:
Originally Posted by lb7drty
Attachment 738
More than willing to help but just got home and gotta leave in 30 for a 4-hour ride.
Please post what they find. I love the stories.
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No worries, figured I'd at least update.Quote:
Originally Posted by zamoramax
I just hope it's fairly quick fix!
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Just got the call from the dealership, they said they spent an hour on it today ( my appointment was for 10:30am and they called me a few minutes before 4pm) they asked if I had ever done injectors on the truck before.
All 8 injectors were done at 267,683 miles on 08/14/2018 which is by a previous owner and not myself.
When I dropped the truck off last night on my way to work it had 286,467 miles on 10/21/2020.
So that would bring the mileage on the current injectors to 18,784 miles.
They said that I was right about something being wrong with circuit 3 & 8 and they would need another hour or two to find out what's going on with it.
They said it's $125 an hour and asked if I wanted them to continue with it and of course I said yes.
I'm leaning towards a failing ECM which I really hope it's not since my truck is deleted with EFi live.
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I'm rooting for ya.Quote:
Originally Posted by lb7drty
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Hopefully the last update!
Just got my truck back from the dealer, they had two hours into it and we're back on all 8 cylinders.
I'll attach a picture of what they did.
Now I just need to get the transmission swapped in my '02 1/2 ton Silverado. [emoji28]
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That's a weird one.Quote:
Originally Posted by lb7drty
Hope it all turns out good for ya.
Keep on classing it up with that bowtie.
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Well that surely didn't last long.
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Limp mode?
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All 3 injector codes came up again, same problem as before.
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I'm leaning on ECM.
I had an '02 Avalanche that the ECM ground out on 1 cylinder.
For 3 at once and for it to go away then come back... electronics are finicky and a PITA when they go wrong.
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If it's a bad ecm I'm still screwed because the truck is deleted so I wouldn't be able to drive it anyways, and I would lose my EFi Live.
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So yesterday I was fed up with the issues and decided at 7 am when I got out of work I was going to do my best to find the issue myself so I didn't have to wait on the dealer and whatnot.
I have figured it out!
1.5 hours outside in 28-degree weather and I got it.
Turned out to be the big connector in the picture here, tested it out 5 times over just to make sure, and every time I'd wiggle it or twist it the truck would start misfiring.
So for the time being I zip tied the connector to help it make a better connection and I haven't had a single issue so far.
Would like to replace the harness myself this spring when it's nicer out.
Found a new GM harness for $750.
I hope this thread will help someone out in the future and I will be sure to update if anything else arises.
I would also like to add I don't know what I would do without this edge CTS2, really helps out.
Would like to upgrade to the CT3.
Highly recommend to anyone!
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