Question about GMC Canyon
To try to pass GA emmissions..check engine lite was on...i disconnected battery..have driven +200 miles..cannot pass due to only thing not passing is the computer is not ready and 00 codes have been read. passed all other areas..including catalytic and fuel cap test, rpm, koeo, mil cmd, and dlc...help...
If the check engine light was on DTC'S - diagnostic trouble code's should be stored . If the light was on , disconnecting the battery won't do anything . Diagnostic's need to be done . Sounds like you have no clue , so best advice , take it to a qualified repair shop .
Posted on Jan 07, 2018
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Posted on Jan 02, 2017
I have a 2001 STS that had the same problem - Service Engine light and returned the P0410 code. It ended up being a small rubber hose that had pulled off one of the plastic lines in the secondary air system. In fact, I just fixed this last night.
Pull off the top engine shield (the one covering the motor and the fuel injectors, not the plastic one at the front of the car) and look for loose lines, hoses or wiring.
Also - if you remove the shroud under the engine (you just have to pull out a bunch of plastic retaining plugs) you can get at the lower elements of the SAS. Look for loose lines, hoses or wiring.
You could be fortunate and just have a loose line. Does the caddie run OK?
Posted on Aug 02, 2010
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Dec 25, 2014 | 2005 GMC Canyon
This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control
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