View Single Post
Old 06-18-2020, 04:27 PM   #3
shortboxin
Registered User
 
shortboxin's Avatar
 
Join Date: Jan 2019
Location: Mesa
Posts: 37
Re: 5.3 C10 Swap Idle Issue

Thanks for the reply!
Quote:
Originally Posted by skyphix View Post
What PCM are you using and has it been tuned/modified at all?
The PCM is from a 2002 Chevy Tahoe with DBC. I don't know specifics as to model number if that's what your asking. It has been modified, but pretty much only to remove anti-theft and rear O2s. I had wondered if the guy that tweaked it may have made a mistake?

Quote:
Originally Posted by skyphix View Post
There is a TORX screw below the TB but you also have to do a TPS reset. If you didn't change that during the swap, its probably more related to build up than adjustment. Clearly I have more experience with DBW.
Everything stayed stock.


Quote:
Originally Posted by skyphix View Post
Another stupid question is, did you verify that all of the spark plug wires are firmly snapped into the coil packs? Two clicks total for factory wires.
I can double check this, but I'm pretty confident on this.

Quote:
Originally Posted by skyphix View Post
Do you have a check engine light or OBD2 reader that you could scan for any codes?
No CEL on the truck yet, but no codes in the scanner. Sorry, should've mentioned this up front.

Quote:
Originally Posted by skyphix View Post
I am finding a ton of info on dirty DBC Throttle bodies causing the throttle blades to stick. Idle speed between 500-600 is very normal, but below that isn't. Have you tried using brake cleaner to clean out any gunk in and around the throttle blade, including pushing it open with your finger and cleaning any residue around the blade and hinge areas?
I have not done anything more than a quick clean. Thing is that it never feels like it's sticking when I press the gas. Additionally, the truck sounds like it's on the verge of stalling when it's at 550-600RPM.
shortboxin is offline   Reply With Quote