I have a 2000 chevy impala ls, has an electrical problem, the maf no signal in any of the three wires, I need the wiring diagram to validate the problem, someone can help me?

 

Welcome to the forum. See if the following makes sense:

Terminal A, YEL wire, to PCM connector C1, terminal 69 (MAF Sens)
Terminal B, BLK/WHT wire, to ground splice S106
Terminal C, PNK wire, from B voltage splice S130

 

Thank's so much... and for the TPS?

 

It looks like as follows (but don't hold me to it):

Terminal A, BLK wire, from PCM connector C1, terminal 61 (Low Ref)
Terminal B, DK BLU wire, to PCM connector C2, terminal 66 (TP Sens)
Terminal C, GRY wire, from PCM connector C2, terminal 33 (5V Ref)

 

Thanks bro, the tps is fine, but the maf does not get 12v power, check the pink wire is fine and the problem is that the wire from the fuse to B voltage splice S130, not even I dare not change

 

I don't know what you mean by "not even I dare not change," but I assume you don't know which fuse supplies power to S130. It's the ENG DEVICES fuse in the underhood fuse block #2.

 

the fuse is good, but the wire has problems and does not lead the voltage, need to replace but i'm afraid to do!

 

I am also having a wiring problem with a 2000 impala. Sometimes I have to turn the ignition switch 30 or more times before it will start { has a new key lock cylinder }.
When it does run I can have the cruise on and when I use the turn signals the cruise will kick out. My son hit the dash at the 4-way button and the car died. I have the dash taken completely out but have found no bad or loose wires. I need help