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trying to have my car inspected, but i'm getting a P0410 code, I know it has to do with the secondary air injection system, I checked the pump,the Relay, and the selonoid, they all working, I even send a signal from PCM to air pump relay and the air pump worked, if anyone knows or had a problem like mine please let me know . I appreciate any input and help.
It seems the shift points are screwed up across the board. It will not shift until it hits 4,000RPM. Also when cruising at around 75MPH, it's registering 3400-3500RPM. I don't think it's getting out of 3rd gear due to the fact it's not getting to 4,000RPM to shift into Overdrive.
I've been wondering if it was the transmission speed sensor or transmission pressure control solenoid?
Some quick history, bought in 2009 with 162,000 for $800. Transmission shifted hard and had a whiny sound. Transmission world in Knoxville told me it was probably stuck in "high-mode" and was most likely the computer giving me a problem, not the actual transmission. March 2010 I fixed my truck and let the Lumina sit for a year. Got her back on the road this past week with a new throttle position sensor to fix a stalling issue it had. Well now the transmission doesn't shift hard but it doesn't shift until 4,000RPM in any gear. Is it possible i put in the TPS wrong? could that cause this issue as well?
I appreciate any advice anyone can give!
As for grounding wires, I guess they mean a) the negative battery cable, as it bolts to the frame of the car, and b) the engine-to-frame grounding cable, which is self-explanatory. This (b) cable is usually braided metal.