5.3L (LM7) into OBS Silverado

Getting even closer... goin' to get custom driveshaft tomorrow. Finished all plumbing lines except the rubber hoses connecting the hard lines to the tank. I plan to remove the bed to take care of those... eventually. Yes, the "not for fuel injection" hoses in my previous post has been replaced. :laugh:

Power steering is fully function, and brakes... well, I want to upgrade the factory setup for greater performance. For now, they're still functional.

I'm nearly finished with the swap, but it seems the transmission doesn't get into first. I have a PTC 3000 stall TC in a stock 4L60E, and my truck's a dog from the start. Look at my sig to see details on truck. Here are the codes I'm getting:


P0706 - Trans Range Switch Performance (Old) (History) (Immature)
P0740 - TCC Enable Solenoid Circuit Electrical (SES) (Old) (History) (Current) (Immature)
P0753 - 1-2 Shift Solenoid Circuit Electrical (Old) (Current) (Immature)
P0758 - 2-3 Shift Solenoid Circuit Electrical (SES) (Old) (History) (Current) (Immature)
P0785 - 3-2 Shift Solenoid Circuit Electrical (SES) (Old) (History) (Current) (Immature)
P1860 - TCC PWM Solenoid Circuit Electrical (SES) (Old) (History) (Current) (Immature)

I've got access to HP Tuners, and tried to drive it for the first time. With no exhaust, I expected a lot of power loss & lots of noise, but it felt as if the truck wouldn't go past 10mph. Any help would be greatly appreciated. Thx!

-Ron

I did the same thing! I forgot to hook up a pink wire that gives power to the tranny for the solenoids and the torque converter clutch.
Mine is circuit # 239 or 839 in the tranny.

Searching Alldata now. HELP!!!! :jump:

*edit* Circuit #239 is on the main harness. I'll have to probe around to ensure voltage is there. Circuit #839 diagram was found. Looking further.

What setup do you have for a air pipe and filter, stock or aftermarket? Can you post pictures of it? Thanks

Hmm... I'll assume you're referring to Air Intake, and not A.I.R. :laugh: The intake tube was bought from someone on PT for $10. I guess he figured he'd cool the air down further to by putting Cool Tape all over the K&N tube. The cone filter was purchased from auto-crap (pre-oiled.... surprised). Everything's tie-wrapped in place until I can fab some sort of bracket to hold it up.

Here's some updated pics:

http://i30.photobucket.com/albums/c3...kWiring003.jpg

http://i30.photobucket.com/albums/c3...5312006005.jpg

http://i30.photobucket.com/albums/c3...5312006004.jpg

http://i30.photobucket.com/albums/c3...5312006003.jpg

http://i30.photobucket.com/albums/c3...5312006002.jpg

http://i30.photobucket.com/albums/c3...5312006001.jpg


Proud papa of a reborn Chevy! :thumb:

http://i30.photobucket.com/albums/c3...5312006007.jpg

<div class='quotetop'>QUOTE(1BADC10 &#064; Jun 1 2006, 08&#58;48 PM) [snapback]54504[/snapback]</div>

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OK... not much luck on the trans issue. There was one 239 circuit under the C3 portion of the fuse center that I had not connected. Fixed that, but the trans still starts of in 3rd only. I&#39;ve gotta put my DMM on it to get voltage values, but am frustrated now cuz that&#39;s the only thing that was visibly missing.
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UPDATE: Took time off after the POSI / Gear install on Saturday. Decided to sleep late today. Went outside with a clear head, and looked at a trans manual. Found the pin on the main connector that provides power to the solenoids. Traced that back to a connector # and pin # from a schematic I found on AllData. There were two leads on the stock harness that didn&#39;t have the required 12V. Got those powered, and all was great. BTW, those were a part of circuit #1020.

This relief was a great early b-day gift. The UPS person will bring a few gauges as my true b-day gift tomorrow. I have some bills to take care of this month & next, then I can look at exhaust & fine tuning the PCM.

Cool, sounds like your almost done. I know how these things can take their toll on ya. Happy B-day&#33;

Happy B-Day man&#33;

Thanks guys&#33; Hadn&#39;t hit 30 yet, but have two kids with one on the way, man, that accelerates life (or at least it feels that way sometimes). With kids gone to grandma&#39;s, me and my wife enjoyed a SILENT house yesterday. LOVELY&#33;&#33;&#33;&#33;